F5 Race build 41lbs.- Mtbr.com
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  1. #1
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    F5 Race build 41lbs.

    What does CHUMBA'S Mechanic ride well here we go...

    Bars - Sunline V-One 19mm x 745mm
    Stem - Sunline V-One direct mount
    Grips - ODI Cross Trainer
    Brakes - Avid Code
    Leavers - Straightline
    Shifter - Sram X9
    Shifter cable - XTR
    Rear Derailleur - Sram X9 short cage
    Cranks - Holzfeller DH 170 mm
    Chain ring - Sram 38 tooth
    Chain ring bolts - Ti
    Cassette - SRAM PG-970 DH
    Pedals - Sunline V-One
    Shock - FOX 09' DHX 5.0
    Fork - FOX 09' RC2 (Ti Spring)
    Headset - Chris King
    Seat - SDG Ti Fly
    Seat Post - Easton Vice
    Chain Guide - E13 SRS + with Ti Hardware
    Chain - SRAM PC-971
    Tires - Maxxis 2.5 High Rollers Super Tacky
    Tubes - None (Gheto Tubeless)
    Spokes - DT Double butted
    Hubs- Industry Nine J Bend
    Rims - Mavic 721

    Mods- Stationary brake, 3.5 Dog bone, Cartridge bearing rocker arm, Left side only cable routing.

    * Still to come Ti-Coil
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    Last edited by markskee; 05-05-2009 at 09:15 PM.

  2. #2
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    you better do the spoke trick on the swing arm, unless you like pulling the chain out every five minutes. I weighed the Ti spring it only saves about 230g.

    Sick bike though. I'm thinking about making the switch to an SRS, the mrp g2 rotates whenever I hit the taco on something.

    Do you have the updated Geo numbers for the 3.5 dogbone? BB height and head angle?
    Team _________

  3. #3
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    Quote Originally Posted by rollertoaster
    you better do the spoke trick on the swing arm, unless you like pulling the chain out every five minutes. I weighed the Ti spring it only saves about 230g.

    Sick bike though. I'm thinking about making the switch to an SRS, the mrp g2 rotates whenever I hit the taco on something.

    Do you have the updated Geo numbers for the 3.5 dogbone? BB height and head angle?
    No need for the spoke mod here... I will let you in on a secret from the CHUMBA Vault if you don't run a rear tire larger than a Maxxis 2.5 and run your chain tight (proper length) you will not get the suck! Kenda 2.5 = No go, Kenda 2.35 = Winner, Maxxis 2.5 = Bingo!

    Last edited by markskee; 05-05-2009 at 09:16 PM.

  4. #4
    BrassBalled DropbarNinja
    Reputation: mrpercussive's Avatar
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    Very sick Mark!!! Loving the new setup... Hahaha, yea, i always wondered why i never had any of that chain suck until that 2.5 Nevegal was slapped on... oh well, wont have that problem anymore... XD

    Also, anymore of those dogbones lying around dude???

  5. #5
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    Quote Originally Posted by mrpercussive
    Very sick Mark!!! Loving the new setup... Hahaha, yea, i always wondered why i never had any of that chain suck until that 2.5 Nevegal was slapped on... oh well, wont have that problem anymore... XD

    Also, anymore of those dogbones lying around dude???

    Yupers call me at the shop!

  6. #6
    BrassBalled DropbarNinja
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    Quote Originally Posted by markskee
    Yupers call me at the shop!
    you'll be hearing from me tomorrow...

  7. #7
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    how about the fixed mounts?

    I got my 3.5 dogbone. waiting for a fixed brake, and new jersey...

  8. #8
    BrassBalled DropbarNinja
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    oh yea Mark... anyway i can get the shock hardware sizing from you??? Planning on a new shock soon... XD

  9. #9
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    Hey Guys, this is my first post here, but I am the proud owner of an F5. Could anyone tell me how much difference in length there is between the stock dog bone and the newer shorter one? My frame's a bit of an oddity - it's a hand made US one which was originally supplied to a race team here in the UK (in 2007 - I wasn't on the team but picked it up 2nd hand when the team got a new sponsor).
    My dog bone has 3.3 written on it and the bb is pretty high (about 14.5") so I was thinking about lowering it for cornering ability. Since my frame hasn't been compatible with newer stock replacement parts I was going to machine up a new dog-bone for myself, but I don't know how much shorter to make it!

    Thanks for any help!
    Rod

  10. #10
    BrassBalled DropbarNinja
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    there's quite a bit of a difference dude... i'm running a 3.5 right now i think and though it's not that much longer, it made the bike ride soooooo much better. Not sure what that is a measurement off though. I'll wait for Marksee or someone to chime in... Best is just to contact Chumba directly and get an answer...

    http://www.chumbaracing.com/contact_us.shtml

    Anyways, it corners way better and is just a lot more stable in the high speed stuff. It will lower your BB right at 14" and your HA angle will slacken to like 63.5 or something like that. Wheelbase gets longer by a little as well i think. If you give Chumba a call, they'll take care of you and save you the trouble of machining yourself one... though, if you were to make one, the longer the dogbone, the slacker and lower the BB will be... Not the other way round...

    OT - Play some drums dude??? What do you play? XD

  11. #11
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    Cheers Mr Percussive, I guess that it's probably about 0.2" difference in length between my 3.3 and the new 3.5. Glad you mentioned that it's longer, not shorter that I need. I've just been staring at the frame to work out how it makes the difference. D'oh! Should have seen that one! Anyway thanks again. I'll see if I've got any scrap pieces lying around to make a new dog bone, shipping from the states is pretty expensive so I'll hold off buying the new dog bone direct unless i have to. How much do they sell for, if you don't mind me asking? Thanks again, Rod

    PS yeah I play drums, a nice 70s Gretsch kit. Not quite as much as I'd like to any more though!

  12. #12
    BrassBalled DropbarNinja
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    haha, no prob dude.... cant remember how much i got mine for. It's been a while and i dont usually like to keep track of how much i spend on parts just because it makes me regret it... hahahahahaha. Give them a call and you'll find out for sure but think it was like $50 or something like that...

    Nice... Gretschs are where it's at... Got myself a Gretsch as well. Though i'd really love a vintage gretsch or one of the new classics but my student budget wont allow it. Maybe some day in the future after i get my vibes and everything else with my studio setup. Til then, this will have to do... XD



  13. #13
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    Nice looking kit! I got mine pretty cheap through my old teacher - he has a collection of Gretsch kits (some from the 50s) and the 70s one was just too much. Back about the dog bone I've got some old billet kicking about in the tool box so I might give knocking one up go, I might not make it quite as long as the 3.5" one - maybe 3.4". The tracks we have here in the UK generally aren't too steep and are pretty tight so I don't want the bike to be too long or slack! I'll let you know how I get on...

  14. #14
    BrassBalled DropbarNinja
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    Quote Originally Posted by funkydrummer
    Nice looking kit! I got mine pretty cheap through my old teacher - he has a collection of Gretsch kits (some from the 50s) and the 70s one was just too much. Back about the dog bone I've got some old billet kicking about in the tool box so I might give knocking one up go, I might not make it quite as long as the 3.5" one - maybe 3.4". The tracks we have here in the UK generally aren't too steep and are pretty tight so I don't want the bike to be too long or slack! I'll let you know how I get on...
    Thanks dude.

    sweet... good luck on making it... i cant remember if it runs or bearings or bushings on the dogbone... but you'll figure it out when you take the old one out... hahaha

  15. #15
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    The dog bone uses bushings, but I might see if there's enough space to pop in a needle roller bearing...hmmmm

  16. #16
    BrassBalled DropbarNinja
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    Quote Originally Posted by funkydrummer
    The dog bone uses bushings, but I might see if there's enough space to pop in a needle roller bearing...hmmmm
    i like the way you tihnk...

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