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  1. #1
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    Any Whyte PRST-1, 4 Owners Out there?

    Anybody out there still ride the rare Whyte PRST-1 or the later PRST-4 models? Love the hear from the PRST owners out there about their bike and share feedbacks or modifications they done to this odd duck of a mountain bike design. Own the PRST-1 for couple of years and enjoy it immensely but would love the hear from owners of later PRST-4 with Dual-link (Marin bikes) swingarm out there compared to the single pivot design of the PRST-1.
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    Last edited by fjyang; 09-01-2008 at 04:00 AM.

  2. #2
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    I’ve still got my dads old Whyte PRST1 XT race bike from 2001. Its had a real thrashing and it’s just the standard V-brake model but everything apart from the gears work fine. As far as the ride goes I think it’s great, it bobs a little more than most modern FS bikes but I see you have A Fox RP23 rear shock so it doesn’t matter much. Somehow it’s still one if the stiffest and fastest bikes I have, the front can feel a little harsh over bumps but I’ve tried others with air shocks and they feel a lot plusher. Have you noticed the very unique sound you get from the frame on this bike? Rather like carbon frames.

    Sorry about the picture quality, I think my camera was having a bad day…



  3. #3
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    I'd agreed its one of the smoothest and solid feeling front and back bike there is. I'd tackle what little bobing there is on the back end with a RP23 platform shock and the stiff front end with a Fox float but with a AVA air canister so the spring rate is more linear with less air. The Fox AVA front shock make the front feel extra plush and it feel like it has more travel then the 4" stock.

    The only front end noise I feel when the fork compress is from the spherical bearing. I have to be carefull not the tighten it too much or too lose to cure the noise. The great thing about linkage forks is that when it compress, it still maintain frame geometry so unlike traditional forks it wont change from 70d headangle to 74d under hard breaking.

  4. #4
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    Hi, I bought a used Prst-1 frame 6 months ago on ebay.co.uk
    I am buying pieces to complete it but I think I will finish in the next summer....

    I red about Whyte Prst on Mba november 2000 (or 2001?) issue...and I loved it immediately...

    I bought a rear disc brake adaptor in Uk from the distributor; the front adaptor was not more available so I could made one from a pdf file I received from fjyang....a real friend.....thanks!! :-)

    So I will ride it next year and I will post my impressions... :-)

    <table style="width:auto;"><tr><td><a href="http://picasaweb.google.it/lh/photo/R96_ZtnGspP3c92xvO8JLg"><img src="http://lh5.ggpht.com/eros.pedron/SMgmNmtie_I/AAAAAAAAAWE/m_jqVIdhTks/s800/whyte_prst1_ero.jpg" /></a></td></tr><tr><td style="font-family:arial,sans-serif; font-size:11px; text-align:right">Da <a href="http://picasaweb.google.it/eros.pedron/WhytePRST1">Whyte PRST-1</a></td></tr></table>

    <table style="width:auto;"><tr><td><a href="http://picasaweb.google.com/lh/photo/oGPOr7Yb9p0iUYkOLWAt5w"><img src="http://lh5.ggpht.com/eros.pedron/SMgqhRCPX_I/AAAAAAAAAWM/r8f1fPUnmIc/s800/004.jpg" /></a></td></tr><tr><td style="font-family:arial,sans-serif; font-size:11px; text-align:right">Da <a href="http://picasaweb.google.com/eros.pedron/WhytePRST1">Whyte PRST-1</a></td></tr></table>

    <table style="width:auto;"><tr><td><a href="http://picasaweb.google.com/lh/photo/c9HjOUfZYMzE1zRQWfpwig"><img src="http://lh4.ggpht.com/eros.pedron/SMgqhf5mGMI/AAAAAAAAAWU/6AzGvUExhX4/s800/002.jpg" /></a></td></tr><tr><td style="font-family:arial,sans-serif; font-size:11px; text-align:right">Da <a href="http://picasaweb.google.com/eros.pedron/WhytePRST1">Whyte PRST-1</a></td></tr></table>


    PS Hi Frank, how are u? What are u building now? :-)
    Last edited by superguzz; 09-11-2008 at 12:54 PM.

  5. #5
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    Just a word of warning, we’ve both got the same model that was know to have frame failures, just from looking at the bike I’m sure you can guess where, exactly on the H & Y of Whyte which is not a place you want a bike to break. It’s fortunately a fairly uncommon problem on our early models that was fixed on fjyang’s later model. As you can see the front shock mount is slightly different on all the bikes here, mine is the original the broke many times, yours was the second attempt that had a much lower failure rate and fjyang’s bike is the one they got it right with. I’m just saying this because I know a rider who was injured when it happened, most likely it won’t happen but don’t take too many bigger hits on the front, should be fine on XC and trail riding though.

  6. #6
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    At least now I know there are more then two Whyte PRST-1 owenrs out there ;-) I wonder about the production number of these bikes. The shock mount was an issue from the info I gather but didn't realized there were two design attempts to rectified the issue, maybe you can contact ATB sales in England when and if it fails for a replacement frame. The three different production frames pictured on this thread is what I hope this thread could be.

    The front fork lower shock Fox bushings suppose to wear out pretty fast and Whyte sell a replacement ball bearing bushing kit which is overkill (in a good way) but at least you don't have to worry about that pair of bushings wearing out. I added a small mud flap/fender under the front shock to keep dirt and water away from the shock and I highly recommended. Go ride without a mud fender on a damp day and you'll be suprised how much crap it gathers down there around the front shock.

    Hey Superguzz or as I remember the Italian Architect! ;-) How are you? Hope the disc brake adapter plans work out for you. My bike projects are all over the place but Mrazek FS is my latest creation but at 7 bikes my girl is threaten to leave me so putting on the breaks for now
    Last edited by fjyang; 09-11-2008 at 02:27 AM.

  7. #7
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    I am thinking about the three different ammo links....it's very interesting argoument...mmmmh
    fjyang's bike has the best link...the V3 frame....mmmh...

    @fjyang: yes...the italian architect!! thanks a lot for adaptor diagram....I made two of 6061 alu....next summer my prst will slow down with a pair of disks.... :-)

    good luck, bye

  8. #8
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    Absolutly Addicted

    Yeh, I came across my PRST1 nearly four years ago, I was previously an engineer, and the design will always win over a trad fork, doesn't matter how good a telescopic fork is it doesn't stand a chance, it just goes to show how much looks play a part or this design would have seen off all its competition, thought I would never sell it.... until I was talking to my local Whyte dealer on how the only flaw I saw was that I would regularly jam the chain when selecting the granny ring on steep accents, and he mentioned the PRST4, which had just reached the end of its production life.... but he mentioned that ATB had 4 frames hanging about in their warehouse.... I knew then that one had my name on it!

    New and old!

    Sorry to anyone out there that paid the RRP, I managed to get this brand new babe for a grand with all the warrentees, true it had LX on it (except the 2008 XT brakes) I have since replaced Crank, front and rear mech and changers with 2008 XT, DMR V12 mag peddles and it also came with a rather plush SDG i-beam seat & post, I also swapped my Carbon Easton bars from the PRST1, and on both upgraded both shock bushes to the lifetime ones, and now added a Blackspire bash ring, and tie-wrapped a black mouse mat to protect the rear arm from chain slap

    The only negative I have for this (which is probably the use I make of it) is that I run the sus quite low and that makes the quad like do absolutely nothing, there are only two things I'd like to do to her now, replace the shocks with Fox with remote lockout and upgrade to XTR.... but these are both hyper critical and I am in no rush to do, I have another bike for DH, but to me this bike is the best designed bike ever, no question, I have never had a bad ride on it! ooh the bash ring is due to my sway towards free riding, which this bike also does fantastically (even with only 4" of travel)

    I have stripped both of these bikes several times, so anyone got any questions fire away
    -------------------------
    Whyte PRST 4
    EPX Terrashark
    Specialized Hardrock (Modified)

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  9. #9
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    Hi leshark

    Finally someone out there rides a PRST-4! and you own both PRST-1 & 4 with both bike together in one picture is a rare sight indeed. Does the dual link PRST-4 rear end ride significantely different then the PRST-1 single pivot? Did you buy the bike from ATB directly?

    My PRST-1 rear end bob a bit with the stock Fox float R and a RP23 take care most of issue, supposely with dual link suspensions you don't need a platform shock to control bob. The front end provoke a either love it or hate it reaction but if you're from a engineering or design background, you'll appreciate the design even more. For me its love at first sight with PRST's. The front end track the terrain like no other fork and the feedback just solid and really communicate to the rider what the front end is doing. The latest 32-36mm stanchions forks with 20mm throu axil come close to PRST linkage front rigidity that was design 1999-2000 and I can't imagine what the front end will be like if Whyte have 8 years of developement & refinement to their linkage design?

  10. #10
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    hi, i own a PRST-1 but I have to finish to buil it; so I did not ride it but I am asking the same question.....is PRST-4 better than the 1??
    bye

  11. #11
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    Whyte PRST'S Predecessor

    Hi Guys, I think I found the grand daddy of Whyte's PRST design. Its a company call Muddy-Fox, model Interactive Comp also a British company? The front end design is vary similar to PRST's and I got a feeling that John Whyte got a lot of inspiration from that bike. I'd also inlcude a pic of BMW's Televeler front end mountain bike for comparison.
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    Last edited by fjyang; 11-12-2008 at 05:27 AM.

  12. #12
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    Quote Originally Posted by fjyang
    Hi leshark

    Finally someone out there rides a PRST-4! and you own both PRST-1 & 4 with both bike together in one picture is a rare sight indeed. Does the dual link PRST-4 rear end ride significantely different then the PRST-1 single pivot? Did you buy the bike from ATB directly?

    My PRST-1 rear end bob a bit with the stock Fox float R and a RP23 take care most of issue, supposely with dual link suspensions you don't need a platform shock to control bob. The front end provoke a either love it or hate it reaction but if you're from a engineering or design background, you'll appreciate the design even more. For me its love at first sight with PRST's. The front end track the terrain like no other fork and the feedback just solid and really communicate to the rider what the front end is doing. The latest 32-36mm stanchions forks with 20mm throu axil come close to PRST linkage front rigidity that was design 1999-2000 and I can't imagine what the front end will be like if Whyte have 8 years of developement & refinement to their linkage design?

    Alas no more, I sold the PRST1 to make way for a DH/Jump bike, the rear end is only different if you set them up properly, which is with a relatively high pressure, as you would for X-country, but I use mine more of an all mountain and epic riding, they both ride extremely light, as if they are about 5 lb lighter, I have ridden both on 6+ hour rides without problem, and I am not among the fittest, however I digress, I run then with about 40% sag, this is below the benefit of Quad link, so I really don't notice any improvement, although I never had a problem with bob on the PRST1, the main reason for the upgrade was the chain slap on the chain stay and just couldn't miss the opportunity, I bought it through Bike in Bristol who are White distributors although it came direct from ATB, but you are unlikely to get one now, I bought her in March, and there were 2 left. I really think White have missed a trick, I ride with guys on supposed all mountain bikes (Specialised and Marin) and on tricky down hill switchbacks, rocks (in fact all surfaces) I leave them standing
    -------------------------
    Whyte PRST 4
    EPX Terrashark
    Specialized Hardrock (Modified)

    -------------------------

  13. #13
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    Quote Originally Posted by superguzz
    hi, i own a PRST-1 but I have to finish to buil it; so I did not ride it but I am asking the same question.....is PRST-4 better than the 1??
    bye
    The only difference is the quad link and the rear triangle has no chain stay, although if you can live without the big gripper quick release, and you have a PRST1, look out for an old Marin rear end, that way you can get rid of the chain stay, which caused me grief with chain jam in the granny ring
    -------------------------
    Whyte PRST 4
    EPX Terrashark
    Specialized Hardrock (Modified)

    -------------------------

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    hey FJ, that's called a (modified) Hossack fork, BMW's recently reintroduced them on their high end sportbikes (K1200S or R or something I think?)

    You're right, Whyte may have actually been designing for Muddy Fox a couple years earlier.
    Some brits with better memories than me might weigh in on the subject.

    Whyte licenced his rear suspension design to Marin and they're still building them. Not the Whyte fork though.

    Sidenote: BMW's Telelever system was ripped off from the British Saxon design.
    (designer gave BMW a good couple months with his prototype, he forgot to have it patented first, they patented it, now he can't use his own design).

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    Broken rear swing arm

    Hi Guys,

    I'm a PRST-1 owner, but mine's rather sickly so I'm in need of some help.

    The rear triangular swing arm has cracked on the chain ring side through the weld for the bearing. So I'm looking for one of the following:

    - Someone with a rear swing arm for PRST-1 they no longer want.
    - Someone with a PRST-1 frameset they no longer want
    - Some guidance on how successful welding the frame will be (an engineer friend of mine says it can be done).

    I'm pretty sure the rear swing arm is the same for all frame sizes and that I want part number PRES20SA, so if anyone knows where I can get one that would be great.

    Thanks
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  16. #16
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    Sorry to see that happen on you PRST-1. It crack right around the single pivot so I recommend fixing it right away. I think your best bet is to try to get warrantey through ATB Sale who distribute Whyte in England. I'm sure they still have parts for the PRST's just not sure how much they want to charge you. Do you know what caused the crack?

    I seen a PRST-1 fitted with a elevated chain stay swingarm of the later JW-1 model's also from Whyte which is another options for you. I also think early 2000 Marin models which use the same single pivot rear swing arm as the Whyte's are interchangeable.

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    A warrantee replacement would be ideal apart from 2 things: -
    1. Whyte only offer a 5 year warrantee
    2. They haven't got any in stock

    Having said that I'll try calling ATB myself, and maybe get some recommendations from good dealers who might have a frameset or something knocking about in the store room.

    Tell me more about the Marin option, and if you know which models might be compatible so I can start search EBay and the other forums.

    Thanks for your comments.

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    prst1 owners

    Hi,

    i've just bought a prst1 , after many years of searching, for a decsent example, so another owner joins the ranks of the few..
    Apparently i am in need of a whyte setup template for the rear suspension, they were made from cardboard, so my question is has anyone still got one and if so could you please send me a photo, with the relevent diamensions on so that i could fabricate one.

    thanks in anticipation

    kevin

  19. #19
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    Quote Originally Posted by andyhyde66
    A warrantee replacement would be ideal apart from 2 things: -
    1. Whyte only offer a 5 year warrantee
    2. They haven't got any in stock

    Having said that I'll try calling ATB myself, and maybe get some recommendations from good dealers who might have a frameset or something knocking about in the store room.

    Tell me more about the Marin option, and if you know which models might be compatible so I can start search EBay and the other forums.

    Thanks for your comments.

    Sorry for such a late feedback but here it is, I know the 1999-2002 approx. Marin Mount Vision/East Peak rear swing arms are interchangeable with PRST-1's and Marin and Whyte all share the same bearing size and also Marin and Whyte have always joint develope rear suspension design's since late 90's. Even now you'll see that all carbon rear end of the Whyte E-120 have come across the atlantic and show up in 2009 Mount Vision after two year since its introduction in England.

    The rear disc adapter have since long gone from Whyte for the PRST-1's but I got a feeling if the Marin still have some adapter's left for their Mount Vision 99-2002 frames, it should bolt right on.

    Some like the clearance that was provided by the elevated chain stay design of the Marin's and Whyte JW-2's so many were transplanted by hardcore racers. Hope this helps.
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    Last edited by fjyang; 01-17-2009 at 07:28 PM.

  20. #20
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    Quote Originally Posted by jblackburn
    Hi,

    i've just bought a prst1 , after many years of searching, for a decsent example, so another owner joins the ranks of the few..
    Apparently i am in need of a whyte setup template for the rear suspension, they were made from cardboard, so my question is has anyone still got one and if so could you please send me a photo, with the relevent diamensions on so that i could fabricate one.

    thanks in anticipation

    kevin
    Whats wrong with your rear end? I think it'll be hard press to get some kind of CAD files release from ATB sales regarding the PRST's. Your best bet is to get a early 1999-2002 rear end from Marin directly if they still have some left or find one off ebay.

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    set up template

    Hi,

    thanks for the reply, but the template i am enquiring about, is to set up the rear suspension, it states in the owner's manual, that you sit on the bike, put pressure into the rear shock and then check with the template, for correct travel, as for CAD files, that would'nt be a problem, as my brother has a wicked computer system linked to a lathe/cnc machine.

    thanks

    kevin

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    Hi,

    thanks for the reply, don't need new rear end, just need setup template which was supplied with all new whyte's prst1's to set up the rear suspension.

    thanks

    kevin

  23. #23
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    Quote Originally Posted by jblackburn
    Hi,

    thanks for the reply, but the template i am enquiring about, is to set up the rear suspension, it states in the owner's manual, that you sit on the bike, put pressure into the rear shock and then check with the template, for correct travel, as for CAD files, that would'nt be a problem, as my brother has a wicked computer system linked to a lathe/cnc machine.

    thanks

    kevin
    You really don't need the template to setup your rear suspension, I think I have the cardboard stash somwhere. 20-25% sag is the rule, I go with 20% myself and you suppose to pump the rear shock to match your weight so 185lb person should use 185psi in their rear shock as a rule. Like everything else, these are just guidelines to get you started and one should adjust up or down to suit their riding style and terrain.

    Some newer rear shock and fork from RockShox already have the sag measurement printed on the shock pistons or stanchions so its even easier to setup.

    Hope this helps

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    Hi,

    thanks for the info.
    does anyone know what the frame colour is called,apart from grey???and where can it be bought, for touching up stone chips.

    thanks

    kevin

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    Quote Originally Posted by byknuts
    You're right, Whyte may have actually been designing for Muddy Fox a couple years earlier.
    Some brits with better memories than me might weigh in on the subject.
    I remember the Muddy Fox bike from my youth, but the muddy fox was originally designed by Dave Smart in the very early 90s, he then licensed the design to MF. Jon Whyte was a very famous Formula 1 race car designer before he created Whyte bikes. He was the head suspension designer for Benetton in 1994 when Schumacher won his first F1 championship. Amazing bloke who bought real fresh ideas to the bike world. He really revolutionised the full suspension market in the UK as his bikes were the staple of many riders in the mid 90s.

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    IIRC about 4 or so years ago there was a dealer here in so cal had a number of these on ebay, new, a couple different builds, going for $500-600 or so, complete. Closeouts or somethin. Looked interesting, super cheap for the quality, but, (no offense of course) scary weird. You just don't know at the time what you passed up.
    Up close in photos they look pretty respectable.
    All bikes weigh 50 lbs. a 50lb. bike doesn't need a lock. a 40lb bike needs a 10lb. lock. a 30 lb. bike needs a 20lb. lock.

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    Seems you can luck out occaisonally too - having scoured e-bay and classifieds for a PRST-4 in decent nick (having previously owned a PRST-1); I finally stumbled upon the ATB Sales ex-demo / sale bikes page; where I picked up this PRST-4 / JW-4 - I'm not sure if it's the last one they had left; but they must be onto pretty low stock by now !



    amazing bike to ride; the 4 definately cured all the problems I experienced with my 1 - namely chainsuck and the terror of destroying a swingarm on a passing rock

    If you're still around leshark; I'd be interested to know of any improvements / preventative maintenance it's worth doing on the quads; I'm planning on getting a decent quality spherical bearing as a 1st job when the original fails.
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    Hi, I've managed to get a 2003 prst1 in really good condition. I've stripped it all the way down and rebuilt it with a lot of new parts. It was cable rim brakes but I've got a set of hydrolics for it. Whyte don't do the adaptor plates for the big gripper dropouts anymore but they were kind enough to provide me with the original cad drawings and I'm getting a set made up. Anyone else interested? I'm waiting on costs. Also, does anyone have a copy of the rear shock sag template at all so I can complete the setup please?

    Mark

  29. #29
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    Quote Originally Posted by thesphine
    Seems you can luck out occaisonally too - having scoured e-bay and classifieds for a PRST-4 in decent nick (having previously owned a PRST-1); I finally stumbled upon the ATB Sales ex-demo / sale bikes page; where I picked up this PRST-4 / JW-4 - I'm not sure if it's the last one they had left; but they must be onto pretty low stock by now !



    amazing bike to ride; the 4 definately cured all the problems I experienced with my 1 - namely chainsuck and the terror of destroying a swingarm on a passing rock

    If you're still around leshark; I'd be interested to know of any improvements / preventative maintenance it's worth doing on the quads; I'm planning on getting a decent quality spherical bearing as a 1st job when the original fails.
    I have managed to get through 2 Spherical bearings and both Shocks have been replaced, one just blew but the other was due to dirt getting into the seal, to try and stop this happening again I fitted a mudguard

    I also have had some bad cable rub on the front forks which I have sorted by redirecting the cables and adding cable ties to keep the cable from the frame.

    Also I fitted a neoprene chainstay protector to stop chain slap, although it wasn't scratching the frame the noise was annoying me (I used a mouse mat)

    I would really recommend a stripdown of the front sus and headset on a regular basis (this should be done on any top end bike) and regular replacement of cable inners, and the PRST's are super simple to stripdown an re-grease, unlike traditional forks!

    Hope this helps

    Rich
    -------------------------
    Whyte PRST 4
    EPX Terrashark
    Specialized Hardrock (Modified)

    -------------------------

  30. #30
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    Quote Originally Posted by Ceemac
    Hi, I've managed to get a 2003 prst1 in really good condition. I've stripped it all the way down and rebuilt it with a lot of new parts. It was cable rim brakes but I've got a set of hydrolics for it. Whyte don't do the adaptor plates for the big gripper dropouts anymore but they were kind enough to provide me with the original cad drawings and I'm getting a set made up. Anyone else interested? I'm waiting on costs. Also, does anyone have a copy of the rear shock sag template at all so I can complete the setup please?

    Mark
    Hi there.
    I am very very interested in original cad drawings so I could do its myself in a factory near my home.
    I am also interested in rear shock sag template 'cause I also do not own it.

    Thanks a lot for help.
    Kind regards.

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    I've been riding my PRST-1 since the bike was first introduced. Love it. I'm just back from a weekend of riding in the Brecon Beacons and it still soaks up the rocks and tracks without being deflected.

    Where I'm not as happy is in the tight and twisty singletrack. The PRST-1 (Preston) is at home in the rocks but wallows too much in the hardpack and turns. Is there a fix?

    Would a platform shock (RP-23?) rejuvinate my bike in the woods whilst leaving its rocky performance untouched. I'm out of the loop on shock developments over the last few years but it would be great to find a techno fix for the only flaw in my bike's armoury.

    Cheers,

    P&R

  32. #32
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    Quote Originally Posted by pieandrun
    I've been riding my PRST-1 since the bike was first introduced. Love it. I'm just back from a weekend of riding in the Brecon Beacons and it still soaks up the rocks and tracks without being deflected.

    Where I'm not as happy is in the tight and twisty singletrack. The PRST-1 (Preston) is at home in the rocks but wallows too much in the hardpack and turns. Is there a fix?

    Would a platform shock (RP-23?) rejuvinate my bike in the woods whilst leaving its rocky performance untouched. I'm out of the loop on shock developments over the last few years but it would be great to find a techno fix for the only flaw in my bike's armoury.

    Cheers,

    P&R
    Hi there...
    I own a 2005 Turner Burner that was factory assembled with a Manitou; last year I changed to a fox RP-23 and the bike became impressive, hard when needed, soft over rock sections....

    The RP23 is very good, you can really feel the difference between the 3 propedal positions, and the unlocked option is useful in dh sections......also remember that the PRST single pivot scheme needs a stable platform suspension...

    kind regards
    sg, Italy

  33. #33
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    As you may have noticed from other posts was lucky enought to get a 2003 Whyte PRST1 not that long ago. Since then it's been massively upgraded. The rear shock is a fox rp3 not the 23 but it certainly does a good job and I can't complain at all about it. The propedal works really well and I prefer that it's either on or off. An easy switch while on the move.

    Just to brag. Mine's now got new wider carbon bars with ergon grips, new Cane Creek headset, new XT 2009 front mech, rear mech, casette, hollow tech2 cracks and bottom bracket. New but 2008 xtr disk brake calipers with gear shift combo levers, Titanium discs (very flash,get me) fox rp3 rear shock with heavy duty ss top bushes and whyte upgraded bottom bushes (those make a big difference by the way). Easton xc2 wheels with slime tubes (not a big fan) and panaracer fire xc pro tyres, special self sealing silicon tape to protect the chain stay, lizard skin neoprine protectors on the shocks, fox float r on the front but that might get upgraded further. Replaced roll pins in the big grippers, SRAM 9 spd chain with powerlink (a dream for cleaning and maintaining) and helicopter tape anywhere that might rub. I think that's it. Oh and a bell! I'd forgotten that.

    Regards

    Mark

    Mark

  34. #34
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    I was surprise on how well the PRST's respond to shock mod's. The Fox RP23 or RP3's are a step up on the orignal Float R. I put a AVA canister on the front shock and it allows the shock to use most of its travel with a more linear spring rate, you need to squeez every inch you can get with a fixed 100mm/4" travel. I've also tried a X-fusion PVA shock on a Mrazek FS and vary impress with it and think it will perfrom better then my 07 Fox RP23, not sure about the latest RP23.

    I'd also got the CAD files for the rear disc plate but my source at the machine shop is gone so if anyone can get it made again, make a few more spars.

  35. #35
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    Does anyone need a replacement frame or parts?

    My neighbor bought this Whyte PRST-1 in 2001 from his friends at the Electra Bicycle Warehouse. It's been ridden it to get coffee a handful of times. Everything is original, frame size is 18" and it needs a good home. The only part that's been replaced are the tires "too much friction", note the original spoke protector!
    Attached Thumbnails Attached Thumbnails Any Whyte PRST-1, 4 Owners Out there?-img_5074.jpg  

    Any Whyte PRST-1, 4 Owners Out there?-img_5075.jpg  


  36. #36
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    Good to hear the PRST-1 responds well to a bit of shock technology. Thanks.

    I think I'll give TF Tuned a go and see what I can achieve. Trust such an upgrade will also make me a better, fitter rider!

    I'll post back here with the result.

    Cheers,

    P&R

  37. #37
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    If for sale how much?

    Does anyone need a replacement frame or par
    My neighbor bought this Whyte PRST-1 in 2001 from his friends at the Electra Bicycle Warehouse. It's been ridden it to get coffee a handful of times. Everything is original, frame size is 18" and it needs a good home. The only part that's been replaced are the tires "too much friction", note the original spoke protector![/QUOTE]

  38. #38
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    asking price

    $800 obo.

  39. #39
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    what's for sale, just the frame or whole bike?
    As little bike as possible, as silent as possible.
    Latitude: 57º36' Highlands, Scotland

  40. #40
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    frame or whole bike?

    velobike + all:
    I'm selling the whole bike for $800.

  41. #41
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    Hello all good to find some other keen PRST owners!

    my issue- I recently tried to fit a float RP23 shock to the front and the leaver balks on the frame. So i fitted to the rear. Now over 6 years ago just before i bought my bike I tried one at Noahs and it had a lockout fitted to the front shock.
    So has anyone managed to fit say a Fox float RPL? the modern ones seem to slightly larger in diameter. any views welcome.
    ncidentally I have changed all the Sus bearings FOC and sperical. Like some others I run with a small plastic mudguard to shield the front shock and both shocks are fitted with lizard skin boots.

  42. #42
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    Just completed Mountain Mayhem 2010. Stacked my PRST-1 on the first lap, but restored my pride and completed 3 further laps. Team of 4 did 18 laps, so need to train for next year to break 20 lap ceiling ;-)

    Regretted doing test/practice rides on the Friday night (all on my own, in the mud!) and Saturday morning - but ho hum, will just ride at full tilt next year and discover the trail at race pace. Had some mods for the Race - new XT shifters, Gore Ride-On sealed gear cables which did me proud! Was bemused by the number of spectators (and riders - some passing me, others as I blasted past) commenting - "what the f**k is that!!!??" and "interesting steed..." Such an original bike - love her madly, considering she's just hit 10yrs old & gives young ,uns a damn good run...

  43. #43
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    Improvments......

    Quote Originally Posted by thesphine
    Seems you can luck out occaisonally too - having scoured e-bay and classifieds for a PRST-4 in decent nick (having previously owned a PRST-1); I finally stumbled upon the ATB Sales ex-demo / sale bikes page; where I picked up this PRST-4 / JW-4 - I'm not sure if it's the last one they had left; but they must be onto pretty low stock by now !



    amazing bike to ride; the 4 definately cured all the problems I experienced with my 1 - namely chainsuck and the terror of destroying a swingarm on a passing rock

    If you're still around leshark; I'd be interested to know of any improvements / preventative maintenance it's worth doing on the quads; I'm planning on getting a decent quality spherical bearing as a 1st job when the original fails.
    Hi, only just saw this comment..... I've tried to get better quality or different sorce of spherical, but I can get them from ATB for about a tenner, so I have two spare and clena it out every couple of months, I got mine from new so all the other bearings (inc. the shock ones) are lifetime bearings, I have stuck with split gear cables as its not my only bike its much easier to clean them after each ride and re-grece before a ride. I have a trimmed mud guard on the front, but no direct protection on the shocks as I clean the bike after (almost) every ride, I destroyed the front shock by not doing so. I have considered swapping the rear shock for a Fox RP23 to get heavy pro-peddle and keep my 40% sag I like and I believe with 40% sag the quad four rear is past its advantage. other than that good tyre choice is important, must be folding (for weight advantage) currently running Panaracer Fire XC pros, but too severe for dry riding, this is a light bike (riding) and seems to work best when crisp if you know what I mean!
    -------------------------
    Whyte PRST 4
    EPX Terrashark
    Specialized Hardrock (Modified)

    -------------------------

  44. #44
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    Just been offered a PRST-1 in a straight swap for a Fender guitar. I'm going to ask the present owner if I can have the bike for a week to try it out given what I have read here.

    Any advise any of you would give me on this? Anything specific to look out for (other than the usual wear'n'tear things)?

    I look forward to your replies.

    Andy.

  45. #45
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    Quote Originally Posted by Andy Dobson
    Just been offered a PRST-1 in a straight swap for a Fender guitar. I'm going to ask the present owner if I can have the bike for a week to try it out given what I have read here.

    Any advise any of you would give me on this? Anything specific to look out for (other than the usual wear'n'tear things)?

    I look forward to your replies.

    Andy.
    Andy, on any bike check the following:
    Turn the bike upside down and spin the wheels, check they spin free and smooth and check for how straight they are, also roughly check the spokes are all tight
    check all the gears are cleanly selectable, no jumping, turning the bike back up, hold on the front brake and push the bike forward and feel for headset play. If its disc brakes run your finger over the rotors and check for bad wear.

    Other than that and more specific things to check, compress the suspension and hold each bearing/pivot area (only one on the rear, four on the front) and compress the suspension and feel for slight amounts of play, do the same with the upper and lower shock bushes (again front and rear), none of the bushes/bearings are particularly expensive, but if there's any play then they should be replaced.

    One to pay particular attention to is the rose bearing (or spherical) one on the front this can wear out in a very short amount of time, riding it will help, but it's important to setup the suspension properly, I work with about 1/4 compression at rest.

    Also look for excessive cable rub, there not expensive bikes to maintain, but can be if you take it to a shop, I have a couple of spherical bearings and there about a tenner a shot, I have also just replaced all my quad link bearings (PRST4) and there's 8 of them and they would have cost about (£45) but I would not expect these to go very often, shock bushes are only a few quid, again I have only replaced them once in the last few years.

    Hope it all works out, these are becoming rare and are now fetching reasonable money (considerably more than there Marin equivalents!)

    Lastly careful in granny ring, as the chain can jam on the chain stay if the running gear is not smooth
    -------------------------
    Whyte PRST 4
    EPX Terrashark
    Specialized Hardrock (Modified)

    -------------------------

  46. #46
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    Thanks Leshark.

    I have to say I'm looking forward to getting my hands (and feet!) on this beast. I've never been one to follow the herd in either my musical career or with the MTB's or the motorbike's I've owned.

    Out of interest, I found this http://cgi.ebay.co.uk/ws/eBayISAPI.d...=STRK:MEWAX:IT
    And this http://cgi.ebay.co.uk/ws/eBayISAPI.d...=STRK:MEWAX:IT
    On ebay at the weekend. Expected them to go for far more than the final price!

    Thanks again for the info.

    Andy

  47. #47
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    hi there just got another whyte prst1 and joined the forum.i had one before but didnt ride it much due to work commitments and sold it in a moment of weakness! found this one by accident while searching fleabay for parts for a kona build and it was only ten minutes down the road so rude not to have a bid! now im skint! a friend set the old one up for me so i am at a loss as to what pressures to run i have a fox pump in the post so wondering if anyone can shed some light on realistic starting point? i am 15 1/2 stone so a bit chunky! i am getting it down though so i am hoping for some sort of ballpark psi per stone estimate so i can lower the pressure as time goes on.finally got a job i can cycle commute so the future is bike shaped!!!

  48. #48
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    Hi All, been reading the thread as i have also just purchased a PRST1 Works special with Discs. What tyres work best for XC, my understanding is to go for a wider aggressive front tyre & a norrow less aggressive tread in the REAR, does this apply to the PRST1.

  49. #49
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    Hi all, I've just joined the forum and noticed the cracked frame around the main bearing of Andyhyde66's Whyte, had a look at mine and scared myself silly. I was out riding last night at warp-speed and hate to think what would have happened if it had let go. I think MTBR might have just saved me a trip to hospital! I hope ATB have got some stock left or I'm in the market for a new bike. I've already had a new frame and two new sets of forks, so the rear triangle, top link for the front forks and the steerer tube are the only original bits left of the original bike. Just for info, it isn't just the main frame that underwent a redesign, the plus fours were beefed up too to accomodate the additional strains of disc brakes. Mine curved backwards slightly at the bottom and showed fatigue cracks down the fronts of the legs. The pictures posted by leshark of the PRST-1 ans PRST-4 side by side show the differences at the bottom of the fork (more weld and gussetting on the -4)

  50. #50
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    At last!!! PRST-1 is in da house:-).

    Needs a damn good clean and is still only on loan until the owner and I finally agree on our PX deal.

    Quick question, does anyone know where I can get some spare bobbins for the big grippers? I've got a really nice set of spare wheels and it would be cool to have a set of wet weather and a set of dry weather wheels that can just drop straight in.

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