Considering a Jet 9- Mtbr.com
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  1. #1
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    Considering a Jet 9

    The aluminum frame, not the RDO (that would be sweet, but more than I can spend). I currently have a Titus Racer X carbon, and wanted to add a 29er. The Jet 9 seems to be the right bike for our trails in North Texas, and there are some really nice deals out there right now.

    So I'm looking for some input on this. I've read some reviews, but for those who ride this bike, are you still happy with the ride? Should I hold out and get a deal on the RDO frame and build out the bike, even if it takes 6 months?

    Thanks for the advice.

  2. #2
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    Quote Originally Posted by bloodyknee View Post
    The aluminum frame, not the RDO (that would be sweet, but more than I can spend). I currently have a Titus Racer X carbon, and wanted to add a 29er. The Jet 9 seems to be the right bike for our trails in North Texas, and there are some really nice deals out there right now.

    So I'm looking for some input on this. I've read some reviews, but for those who ride this bike, are you still happy with the ride? Should I hold out and get a deal on the RDO frame and build out the bike, even if it takes 6 months?

    Thanks for the advice.
    Are you looking to use it as a race bike?

    It's my main XC race bike that I reach for in the Midwest. If you can get a deal and would be happy with 3.1" of rear travel (can pair it with 80mm or 100mm up front), it's a fast and fun XC bike. Obviously, the RDO is lighter and has more rear travel (and the option for 120mm up front). But - it also costs more as you mention.

    I don't think you will be disappointed in the aluminum JET. I guess the money you save on the deal, you could put into a hot set of wheels for the JET 9.

    Am I still happy with my JET? Heck yes.

  3. #3
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    I am also in North Texas, and I ride quite a bit. I used to have a Jet9 Alu and now an RDO. Both are great bikes for our areas. Dallas Bike Works might still have my Medium Alu frame for sale if you are interested going the used market.

  4. #4
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    i enjoy the ride of my Jet 9, for me it is a bit short on travel for front range Colorado.

    Quote Originally Posted by bloodyknee View Post
    The aluminum frame, not the RDO (that would be sweet, but more than I can spend). I currently have a Titus Racer X carbon, and wanted to add a 29er. The Jet 9 seems to be the right bike for our trails in North Texas, and there are some really nice deals out there right now.

    So I'm looking for some input on this. I've read some reviews, but for those who ride this bike, are you still happy with the ride? Should I hold out and get a deal on the RDO frame and build out the bike, even if it takes 6 months?

    Thanks for the advice.
    Last edited by level-4; 12-05-2011 at 08:46 PM.
    Niner WFO | Transition Double | Pivot Firebird

  5. #5
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    Quote Originally Posted by flafonta View Post
    I am also in North Texas, and I ride quite a bit. I used to have a Jet9 Alu and now an RDO. Both are great bikes for our areas. Dallas Bike Works might still have my Medium Alu frame for sale if you are interested going the used market.
    That's who I would buy from for sure. Great guys who all ride bikes. I need a small but James already priced it out.

    So you don't think I'm regretting it six months from now if I pull the trigger on the Alu ?

  6. #6
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    Quote Originally Posted by level-4 View Post
    i enjoy the ride of my Jet 9, for me it is a bit short on travel for front range Colorado. I will make you a sweet deal on a Large, if your interested PM me.
    Sorry, I need a small frame. I'm almost a midget.

  7. #7
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    Do it.

    I have a Jet 9 and live in the Dallas Metro. This bike is perfect for everything N. Texas has to offer. It's a perfect fast XC / Race Bike and does well as an all day Endurance bike.

    You won't be disappointed.

  8. #8
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    Quote Originally Posted by bloodyknee View Post
    Sorry, I need a small frame. I'm almost a midget.
    no worries
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  9. #9
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    Small jet 9 hu, I just happen to have one of those. I'm what you call a "huge midget" (5'9" w/30" inseem). Mine seems to fit well. I'm happy with it but today I came up with what I think the J.E.T. stands for, Just Enough Travel. I could stand a little more travel but the RIP crossed over into the territory of my Titus El Guapo.

    If you're looking for something to ride all day on fast "mild" trails this bike is it. I've taken mine to Davis WV wich is rather rough and it did well. The thing is awesome on tech uphill climbs. I've cleaned some stuff on my jet I don't think I could do on my old RM85 dirt bike.

    It has some quirks though. The cable routing is fugly. It has an odd bridge from the seat to chainstays that catches everything bigger than a gnat wiener.

    But for the price they are going for now it's a deal.

    I swapped out the fork lowers for a pair with the 20mm dropouts, built a set of wheels with the stock stans rims and ck hubs. I tossed the brakes for some hope tech/x2's. I run captain tires in 2.0 size. Also went to nokon cable housing as well. The way the housing is routed causes alot of goo to get into the front derailer housing right at the derailer.

    Other than that. great bike!
    "I'm the fastest of the slow guys"

  10. #10
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    I've really enjoyed the 2 months I've put on the Jet (aluminum version, like you're looking at.) Our local trails are mild and fast, with lots of sustained (and occasionally steep) climbs. I'm finding that it's the perfect "do it all" bike for my riding style, which mirrors our trail conditions - lots of climbing, smooth and fast on the downhill, no interest in going for big air or tackling super technical downhills. If that sounds like your riding style and where you ride most often, the Jet is the ticket.

    Now - and I'm surprised that nobody has mentioned this - there is (for some of us) a recurring "chain stuck" drivetrain issue. On occasion, the chain will get stuck between/above the big ring (if you're using a triple) or a bash guard (on a 2x9+bash) and the driveside chainstay weld. I've tried - and my mechanic(s) have tried - many "fixes" for this issue, from replacing my 44t with a bash, spacing the cranks out and then in, to completely replacing my chainrings, chain and cassette (on the theory that my drivetrain was worn out.) Nothing has really worked - first ride with the new chain, rings, cassette - chainstuck (that's what Bruce calls it) seems to continue. Very careful front derailleur shifting (NO load on the chain whatsoever) is about the only "fix." Unfortunately, it's happened enough that the chainstay is pretty chewed up on a new-ish frame. Apparently, this can happen with 2x10 set ups as well.

    Now, is this a deal killer? Not for me. I really like the Jet - it's one of the best climbing+descending frames I've owned for the local trails. Just a heads up on something that hasn't been disclosed in response to your question.

  11. #11
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    I guess I am the fortunate one because I have never had chain suck or chain problems on my Jet 9 X7 2x10 setup. Other than the low grade MatchMaker (not XX) clamps (now replaced with individual clamps), the Niner Jet 9 has been flawless.

  12. #12
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    if you are having any kind of issue with a Niner, please feel free to call us directly. Eric or Brad will answer the phone and we will happily help you troubleshoot. 1877NINERXC.

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  13. #13
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    I have also gotten a 2011 Jet 9 recently and have put about 40 miles on it. I have no chainstuck to report. However after reading Earthpigs comments about his trouble I tried to do some things to help prevent it. So far so good.

    I am running a 2x9 with a RaceFace lite bashguard 32/22 gearing. After looking at the clearance it don't see how the chain could get stuck. I also wrap the yoke with electrical tape and put a chain stay cover on and slid it behind the chainrings. Maybe overkill but I don't want to scratch up my new frame lol.

    Anyways, to answer the question, I love my Jet. I think it is a very nice ride. Seems well balanced and rides over obstacles without any problems. The suspension works very well too. Much better than the Fisher HiFi I was riding before. Good luck on your decision.

  14. #14
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    Just got a X7 build and it is a blast. Only about 30 miles on it so far, but my smile has not come off my face. No chain issues, but then again...only 30 miles on it. So far, the complaint I have is tied to the Conti Race Kings. They do not like wet leaves and damp trails here in the Southeast.

    AsJCoop mentioned, the suspension works very well. Ride is smooth & gets over obstacles very well. And I'm a Clydesdale.

  15. #15
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    I have around 500 miles on mine and no chain suck. However, I keep my drivetrain clean with an ultrasonic cleaner and maintain my stuff quite well I think. I was strictly against 10 speed until this bike. I would have never bought 10 speed buy itself but this bike came with it and so far so good. (other than cable housing issues)
    "I'm the fastest of the slow guys"

  16. #16
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    Quote Originally Posted by JCoop341 View Post
    I am running a 2x9 with a RaceFace lite bashguard 32/22 gearing. After looking at the clearance it don't see how the chain could get stuck.
    I would never get chainstuck with that set up, either. Especially since you run it in the position of a triple.

    It only happens to those of us who run larger rings than you do in 2 x __ configurations with the typical chainline for a 2 x __ drivetrain - or who run a full triple with a large chainring with 42 or 44T. JET & RIP are culprits - I don't know about the RDO in terms of whether or not anyone has experienced the "stuck" chain issue on it.

    In spite of that and a few tweaks to help keep the chain from getting stuck - my JET looks, rides and performs quite well in a normal fashion..

    <a href="https://www.flickr.com/photos/[email protected]/5513860892/" title=""><img src="https://farm6.staticflickr.com/5254/5513860892_bddfd294eb.jpg" width="343" height="394" alt="Fo-can-fiddle"></a>

  17. #17
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    I tested a friend's Jet 9 X7 build on 2 trails this past weekend. I'm looking for my 2nd mountain bike. I started with a Motobecane 29er aluminum hardtail to get my feet wet in the sport. I've since become a road bike racer and a recreational mountain biker that will do a MTB or CX race here and there. My alloy hardtail kills my lower back any time I trail ride due to an old football injury so I am getting something different. I rode another friend's MCR 9 too and it killed my back just as much as my bike. And I didn't like riding it. If I didn't have a back problem I would ride a A9C with a carbon Niner fork. I love the feel of stiff, light hardtail bikes.

    The Jet 9 suspension works awesome. Setup with the proper sag and enough rebound damping the bike for the rider, the rear suspension keeps the tire on the ground, driving the bike forward uphill on loose rock or rooted terrain and pedal bob is virtually unnoticeable offroad. The only time I even considered using propedal was when I was on pavement and even then I decided to just leave it alone and let the shock soak up the joints and cracks.

    I was riding the bike in mud and snow so I can't really comment on how efficient it feels in comparison to a hardtail. I never ride my hardtail on anything other than dry ground because I just lose it anytime I hit mud. I got the impression that the suspension geometry and the Fox RP23 is a very efficient package.

    I can say that to me the Jet 9 felt stiffer from a lateral compliance standpoint than the MCR 9. And it completely resolved my back pain problem so much so that I kind of couldn't believe it. I could ride my bike for approximately 1 hour. Riding the Jet 9 for two days has me thinking about trying a 6 hour or 12 hour enduro race next season.

    The X7 2x10 I rode suffered the dreaded "chain stuck" exactly once in 35 miles of riding. After it happened, I did everything I could to avoid shifting the FR derailleur for the remainder of the time I spent on the bike. From what I recall, the chain stuck happened when I was shifting down the chainring while heading into an uphill at a lowish cadence. It really caught me off guard and, frankly speaking, put a bad taste in my mouth about the attention to detail paid by the designers. The chain was literally stuck between the big ring and the weld bead at the chainstay yolk. It did, however come free easily by hand after jumping off the bike but could not be freed simply by back pedaling, which sometimes works in chainsuck or bounce off scenarios, in my experience.

    In my opinion, this frame is simply not compatible with the X7 2x crankset that this particular example was equipped with (with these rings, at least). Sorry but it is not my bike and I do not know what the ring sizes were on it. But I believe the bike was purchased directly from Niner as a full bike closeout (Raw finish w/ X7 group, Reba fork, Stylo components, Stans Arch wheels, Conti MK tires, WTB Silverado saddle, Niner Flat 9 bar, etc.). The rings would be 39/26, according to Niner's website.

    I work as a vehicle development engineer for a major global car manufacturer. Successful manufacturing firms gain trust by learning from design mistakes such as this and institutionalizing them as standards. I hope Niner can learn from this error and incorporate this knowledge in future product development. Every company makes mistakes. It's learning from them that separates the survivors from the rest.

    Personally, I prefer a 1x9 setup anyway. I will be purchasing either a Jet 9 or a Jet 9 RDO very shortly. For my money, the RDO is worth the premium considering it has a 5 year warranty compared to the alloy bike's 2 year term. But obviously not every buyer will be interested in riding one bike for 5 years or more... and everyone values money uniquely.

    If I was going to run my bike 2x10, I would definitely go with the RDO or take a look at a Salsa Spearfish since it gets similarly good reviews and can be had for less money. But I am more inclined to run either 1x9 or 3x9 on mine anyway. And I am a Ninerd. And my club is doing a team buy on Niner frames and bikes right now.

    Other than the chain stuck and a slight feeling of excess mass (I was riding in mud, mind you) I would say I thought this CVA Niner was very nice indeed and I would be satisfied owning one for a very long time... in black anodized. If Niner didn't give you 2.5 times the warranty on the RDO, I wouldn't even be considering that frameset. I would have already bought the Jet 9, but not if I intended to run it 2x10...

  18. #18
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    Sorry guys, I didn't mean for this to become a b!tch session about chainstuck, but I think the OP needs to know about this potential for an issue (I say potential becaus Dry Side notes every time that this is discussed that he's never had it happen) with the chain getting stuck with some set ups and some drivetrains. My experience with "stuck" is exactly as billips describes - always riding uphill, and shifting from middle (36) to small (24) under light load. I'm no engineer, but my guess is that light load causes the chain to wrap around the middle ring just enough that if the suspension is active, the chain will suck up between the big ring or bash guard and the weld.

    In 13 rides over 2 months, I've had chainstuck happen 4 or 5 times. This has happened with a variety of drive train set ups (44/32/22, bash/36/22, bash 36/24) and with the cranks (9 speed Race Face Atlas with a Shimano BB) spaced both 2 spacers out and 1 spacer out. It has happened with old drivetrain parts (front rings, chain, cassette) and with recently installed new parts - chainrings/cassette/chain. The only "fix" that seems to work, other than really babying the front shifting (NO load whatsoever), is the ziptie approach. See the photo below. You can see the damage and the attempted fix. Remember - this frame is only 2 months old.

    @Niner - I'm not a mechanic, but I've taken it to a Niner dealer to be looked at. The mechanic laughed and said that they've seen this before with the Jet. I would have to assume that they have called you about how to fix it. The mechanic's opinion was that the frame basically is not compatible with a 3x9 drivetrain. Or perhaps not a 3x9 drivetrain with my choice of crank/BB. I don't know.

    IN ANY EVENT - again, I think the performance of the bike - which I give a 9.5/10 - outweighs the comparative annoyance/frame damage caused by chainstuck. Just wanted the OP to be aware of this potential issue since it's happened to a few of us and hasn't been stated in the reviews. I have to think that at some point Niner will institute the fix for this on the Jet frame that they did on the RIP (the notch in the weld.)
    Attached Thumbnails Attached Thumbnails Considering a Jet 9-120611091102.jpg  


  19. #19
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    I never had a problem with my Jet9 getting any chain stuck. (2x10 30/39 )

    I had the problem with my Rip9 but when I went to 26/39 I never had the problem again.
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  20. #20
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    Quote Originally Posted by muzzanic View Post
    I never had a problem with my Jet9 getting any chain stuck. (2x10 30/39 )

    I had the problem with my Rip9 but when I went to 26/39 I never had the problem again.
    I do think the 2x10 set up is the only solution (which is what the Niner dealer told me.) There's no big ring or bash guard to catch the chain. Frustrating and expensive for those of us who really like 3x9, but if you're starting from scratch, it's the way to go - AND well worth it for the frame.

    Out.

  21. #21
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    I also never experienced a chain stuck in thousands of miles. I was using a 2x10 setup (26-39).

  22. #22
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    Love and Hate my Jet 9

    I had it now for 2 months and love it.... only been able to ride it a couple of times due to the holidays and a broken collarbone.

    I am also in North Texas and was riding it hard and fast when I broke my collarbone. The bike held up really nice, even the Stan wheels too. Not sure what came first, the chainstuck or the fall but something went wrong and each time I have taken the bike out I had issues with the chain stuck or suck.

    My bike shop setup a chainstay an that seem to work a bit but I am not so sure my fall was all on me.

    Would I still get the Jet 9... yeah. Love the bike... btw... I am 5'7" with a 29" inseam and the M frame fit better than the S frame. The top tube was too short for me on the S size.

  23. #23
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    Madrv1 - Didn't know you were in N Texas. Starting to see quite a few Jet 9's in the area.

    I've seen a few posts on the chain issues, seems to be hit or miss, but I haven't had any at all after 5 rides. Time will tell.

    Which Stans wheelset are you running?

  24. #24
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    I'm in North Texas too. I bought my Jet9 X7 build in October. I think it works great for all the trails around here. I usually ridden it at Erwin, Northshore, RCP, or Arbor Hill. I have been very pleased with the x7 drivetrain and have had zero issues.

  25. #25
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    Hi Gang...

    I run my Jet9 as a 1x10. I don't have any chain suck/stuck issues, but I'm wondering if this Biocon v.02 guide might help you guys that do.

    I put it on my bike just to lessen drivetrain noise as I bounce through the rocks in the NE (to much time on a SS prior to the Jet, I guess). It certainly works for that anyway. It mounts a bit outboard on the Jet9 for my tastes (instead of directly under the swingarm), but it seems to work just fine.
    Attached Thumbnails Attached Thumbnails Considering a Jet 9-biocon.jpg  


  26. #26
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    I have been running my Jet 1x10 running a MRP 1.X Chainguide and have had ZERO issues with chainsuck or dropped chains.

    The 1x10 is perfect for N. Texas (my home trail is Northshore).
    Attached Thumbnails Attached Thumbnails Considering a Jet 9-img_3089.jpg  


  27. #27
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    I have a JET with the X7 build kit and changed the fork from 100mm to 120mm. Works great in North Carolina.
    I haven't bottomed it out!
    Great XC bike

  28. #28
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    Ride in N. Texas metro dallas area.
    Sold my Jet 9 for a 2012 EMD9.
    Can't believe I ever rode a FS in Texas

  29. #29
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    Quote Originally Posted by quelocotony View Post
    I have been running my Jet 1x10 running a MRP 1.X Chainguide and have had ZERO issues with chainsuck or dropped chains.

    The 1x10 is perfect for N. Texas (my home trail is Northshore).
    Nice looking Jet 9 there... this is Mike, we met this past weekend.

  30. #30
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    I"ve had my Jet for over 1500 miles now. Kermit Green. Been all over the southwest with it, Crested Butte, AZ trail, Blue Diamond near Las Vegas NV, and over a good portion of So Cal. Pretty good, fast climbing light trail bike or fine of you are used to a hardtail, getting a little bit older, and your lower back just can't take the pounding any more that a hardtail can dish out.

  31. #31
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    I use to have the same feeling about pain and age relating to buying my Jet 9 and i'm almost 40; but then I rode a 29er EMD9 and I wonder why I ever thought I needed a JET 9. Mind over matter.
    If you haven't demoed a Niner HT or any 29er HT do it. You'll be superised.

  32. #32
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    Agreed. I herniated a disc 20 years ago and have bad back problems, but mtb, walking, running and mx racing actually help it. Go figure. It's only when I twist or put torque on my back that bad things happen. Anyway, I rode FS for years thinking it was the only solution.

    Then I got a carbon 29er HT with low pressure tires. I've had zero back issues on that bike and a fully rigid steel 29er with even bigger low pressure tires.

    The only reason I'm on FS is for rocky nasty terrain. Most of my riding is on a hardtail. Bad back and all.

    Quote Originally Posted by chadster01 View Post
    I use to have the same feeling about pain and age relating to buying my Jet 9 and i'm almost 40; but then I rode a 29er EMD9 and I wonder why I ever thought I needed a JET 9. Mind over matter.
    If you haven't demoed a Niner HT or any 29er HT do it. You'll be superised.

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