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  1. #1
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    Major 2007 XTR Problems!

    I have worked in a bike store for the past 12 years and am a die-hard Shimano fan and have always ridden XTR. I prefer the durability and utter dependability of Shimano over SRAM any day of the week.

    I received my full 2007 XTR Norco around Christmas time and was very excited about the new group, as XTR never fails to disappoint. Everything looked sweet about the new designs and the initial feel was perfect.

    That was until the first ride, when the freehub body started popping under load. Almost the whole staff of the shop I work at (6 of us) got the new bikes with the new XTR and were all experiencing the popping - definitely not confidence inspiring. One of the mechanics had his freehub seize up which promptly sheared his rear derailleur off, bent his front derailleur and badly scarred his cranks. Shimano sent out a box of replacement freehub bodies which seemed to have fixed the issue.

    A few of us have been experiencing missed shifts in the thumb paddle of th rapidfire shifters. Sometimes I will go to shift a few gears up (easier gear) and the shifter will miss completely and nothing will happen.

    Another problem three of us have had is that the cranks rotate a tiny bit on the spline of the crank. These cranks were installed properly at the Norco factory and then checked for proper installation at the shop. This problem is certainly not due to improper installation. The cranks do not rotate very far, just a small clunk back and forth when a different pedal load is applied. However small, this problem feels like it will get worse, not a cool thing with such expensive cranks.

    Then yesterday, my freehub body starts seizing up 20km from home, and I was forced to pedal continuously to prevent my derailleur from ripping off.

    I have been a mechanic for over a decade and am well aware of proper installation and maintenance procedures. I am wondering if there was a crappy first batch of the new XTR made, or if Shimano just rushed the group out to try to compete with the new flashy SRAM parts.

    Anyone have similar issues?

  2. #2
    Nightriding rules SuperModerator
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    I don't have the new xtr (I am an XT guy ).but those are the first "major complaints" I have heard.. I am curious if more people have had those problems

  3. #3
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    I was planning on getting the 07 XTR shifters, r. derailluer and cranks. That is scary
    I am not opposed to SRAM but have not had too much experience with it. I will probably get the X.9 shifters and R. derailluer and stick with my LX cranks cause the weight savings on the cranks is not that great.
    What should I do?

  4. #4
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    I have the 07 shifters, brakes & derailliers, no issues in 5 months

  5. #5
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    I have 07 XT rapidfires and CRank and 07 RDR and have not had one single issue. Shimano RDR are notorious for needing adjustments after a few miles, but that's not biggie. Your complaints are the first I've heard. Most people rave about the cranks.

    I wanted the XTR shifters for the adjustability but I didn't want that new double shifting feature. I heard too many people would accidentally shift more gears than they wanted.
    "You have a Ph.d in Economics yet you're such an idiot sometimes." - My ex-wife.

  6. #6
    Nightriding rules SuperModerator
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    Quote Originally Posted by Guppie58
    I wanted the XTR shifters for the adjustability but I didn't want that new double shifting feature. I heard too many people would accidentally shift more gears than they wanted.
    I guess you mean the "multi release", because the 07 XT rapidfires do have the dual release (also drop gears with the thumb)

  7. #7
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    Quote Originally Posted by peteypete
    Almost the whole staff of the shop I work at (6 of us) got the new bikes with the new XTR and were all experiencing the popping - definitely not confidence inspiring.
    Anyone have similar issues?
    Other than your mechanic friends and you experiencing the abovementioned problems, have you (or your mechanic friends) came across customers who have similar '07 XTR problems?

  8. #8
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    Quote Originally Posted by wensiaw@pacific.net.sg
    Other than your mechanic friends and you experiencing the abovementioned problems, have you (or your mechanic friends) came across customers who have similar '07 XTR problems?

    Yeah, one customer with the crank issue. I am thinking we might have received some of the first OEM XTR and it had some bugs. The freehub body is the biggest issue, as that is 2 toasted in a few months. I have heard of a few with the shifter missing occasionally.

  9. #9
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    Quote Originally Posted by peteypete
    Another problem three of us have had is that the cranks rotate a tiny bit on the spline of the crank. These cranks were installed properly at the Norco factory and then checked for proper installation at the shop. This problem is certainly not due to improper installation. The cranks do not rotate very far, just a small clunk back and forth when a different pedal load is applied. However small, this problem feels like it will get worse, not a cool thing with such expensive cranks.
    Assuming I'm understanding correctly, it sounds like what you're describing is some slop between the left (only) crank arm and spindle spline interface, since the spindle and right crank arm are one integrated unit. If so, (although you clearly state that the problem is not due to improper installation) the obvious question is whether the nut that holds the left crank arm to the spindle was torqued to Shimano's current spec during initial installation. I recently installed a set of XTR 970 cranks on my bike and was very surprised to see how far the left crank arm moves onto the spindle when torqued to spec - between tightening it firmly with a plain socket wrench and torque'ing to spec, the arm appeared to move close to 1/4" further onto the spindle!

    If it was indeed torqued correctly, it seems the only explanation would be related to improper machining of either the left crank arm or spindle spline (or both) interfacing surfaces. If that's the case, I sure hope Shimano got this resolved early on.

  10. #10
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    I have the 2007 XTR shifters, and RD 2006 XTR FD.

    Only missed shifts at less than -15 C when the grease inside the shifters gets to stiff.

    I squirted a little WD 40 inside and blew with air. No other problems.

    I have the XTR 970 cassette, and Blackspire chainrings.

    Shifting is great and the drive is very efficient even when fully cross chained.

  11. #11
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    Quote Originally Posted by peteypete
    I have worked in a bike store for the past 12 years and am a die-hard Shimano fan and have always ridden XTR. I prefer the durability and utter dependability of Shimano over SRAM any day of the week.

    I received my full 2007 XTR Norco around Christmas time and was very excited about the new group, as XTR never fails to disappoint. Everything looked sweet about the new designs and the initial feel was perfect.

    That was until the first ride, when the freehub body started popping under load. Almost the whole staff of the shop I work at (6 of us) got the new bikes with the new XTR and were all experiencing the popping - definitely not confidence inspiring. One of the mechanics had his freehub seize up which promptly sheared his rear derailleur off, bent his front derailleur and badly scarred his cranks. Shimano sent out a box of replacement freehub bodies which seemed to have fixed the issue.

    A few of us have been experiencing missed shifts in the thumb paddle of th rapidfire shifters. Sometimes I will go to shift a few gears up (easier gear) and the shifter will miss completely and nothing will happen.

    Another problem three of us have had is that the cranks rotate a tiny bit on the spline of the crank. These cranks were installed properly at the Norco factory and then checked for proper installation at the shop. This problem is certainly not due to improper installation. The cranks do not rotate very far, just a small clunk back and forth when a different pedal load is applied. However small, this problem feels like it will get worse, not a cool thing with such expensive cranks.

    Then yesterday, my freehub body starts seizing up 20km from home, and I was forced to pedal continuously to prevent my derailleur from ripping off.

    I have been a mechanic for over a decade and am well aware of proper installation and maintenance procedures. I am wondering if there was a crappy first batch of the new XTR made, or if Shimano just rushed the group out to try to compete with the new flashy SRAM parts.

    Anyone have similar issues?
    I have 07 XTR shifters, rd and fd. Nothing but flawless shifting for the past 9 months.

    The seized freehub sounds a little like a sci-fi story to me though.

  12. #12
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    My shifters work fine. Love them.

    As for the hubs, the first rear hub we laced suffered a seizure of the freehub without me putting it thru it's pace. No issue with the replacement hub for 4 months..

  13. #13
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    2007 XTR cranks, rapidfire shifters, and rear derailleur with about 400 miles on them. Not a problem at all. Perhaps there were some manufacturing flaws, but that would be unusual for Shimano.
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  14. #14
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    I've got '07 XTR front and rear derailleur, cranks & rapid fire shifters. Ridden about 300 miles with the set with absolutely no problems. Flawless performance in a variety of conditions. No complaints here.

  15. #15
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    Good job!

    I had various generations of XT on my bikes over the last dozen years or so, for my current ride I went with 07 XTR cranks, brakes and shifters. Only problem is with some occasional brake honking, but that's not all that odd for disks I've heard. Shifters and cranks are perfect as I expected.

    I'm running King hubs, my last set (non disk) didn't even have dirt in them after 10 years of riding so I don't think these will be seizing up anytime soon. I deleted the XTR wheels from the bike build and the money saved was identical to the money spent on a King/V355/Wheelsmith wheelset built up by Dave at SpeedDream. Even when shipped to Canada, hard to beat.

  16. #16
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    I'm using 07 XTR shifters, derailleurs and cranks. No problems at all over the last few months.

  17. #17
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    Re XTR issues

    ...
    Last edited by peteypete; 07-07-2007 at 11:37 AM.

  18. #18
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    Uhh get that **** warrantied!

  19. #19
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    Check out these photos of my 2007 Ibex Atlas Pro with 2007 XTR. I'm out almost 200 bucks replacing derailleur hanger, new 2006 XTR rear derailleur (got a better deal than 2007, and LBS said more rugged), and new chain. IBEX seemed to think that I had done something to bend the derailleur causing it to bind. I had taken a spill 10 miles earlier, but it was shifting OK before this happened when I started out from a stop.

    This thread is making me wonder now if this should have been a warranty fix.




  20. #20
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    The fact that the rear deraileur is quite clearly hooked around one of the spokes leads me to believe that your warranty claim will be denied.

  21. #21
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    The fact that the rear deraileur is quite clearly hooked around one of the spokes
    indicates that the damage occurred as a result of __________________________________________

    Please fill in the blank. Perhaps I am being a little slow, but I am missing your point.

    Thanks.

  22. #22
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    .........as a result of your crash bending either the deraileur or more likely the hanger, allowing it to hit the spokes and get carried around the wheel.

    I can see from the cable position that you were either in the largest or at a real stretch the second largest sprocket where the derailleur gets real close to the spokes. Classic case of bent hanger, seen it hundreds (?) of times.

    You are being slow, it really isn't rocket science.

  23. #23
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    Been running the 07 xtr rear deraillieur on my dmr for a few weeks and have no issues, but then I do carry an XT in my camel back for a back up. Having no real issues with the durabilty at all.
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  24. #24
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    Quote Originally Posted by MalemuteKid
    Check out these photos of my 2007 Ibex Atlas Pro with 2007 XTR. I'm out almost 200 bucks replacing derailleur hanger, new 2006 XTR rear derailleur (got a better deal than 2007, and LBS said more rugged), and new chain. IBEX seemed to think that I had done something to bend the derailleur causing it to bind. I had taken a spill 10 miles earlier, but it was shifting OK before this happened when I started out from a stop.

    This thread is making me wonder now if this should have been a warranty fix.




    Just because you were shifting "ok" after the spill doesnt mean that everything is fine. Shimano RD's will still shift "ok" even if the RD isnt prefectly aligned with the sprockets cos the guiding pulley is floating.

    I think Furner's assessment is pretty accurate.

  25. #25
    XTR is the shizz-nizz...
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    Just installed all new XTR M970 FD, RD, and shifter pods and its awesome!!!!
    The shifting performance is utterly amazing...compared to my previous Deore components...

  26. #26
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    I have the "popping under load" problem on my '07 xtr wheelset. Is shimano aware of this problem? I'd like a new freehub...

  27. #27
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    i seem to have the wobly cranks on my xt's and i just replaced my 06 xt shifters with 07 xtr and the on the rear shifter , the smller lever seems to be real harsh, and not too easy to pull.
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  28. #28
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    that popping happened in some of the early production freehub bodies. get you LBS to call shimano for a replacement.

  29. #29
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    Quote Originally Posted by Dover
    that popping happened in some of the early production freehub bodies. get you LBS to call shimano for a replacement.
    I bought the wheels from a friend who is a wrench at a shop. He called shimano today and they said they'd never heard of the problem. Keep in mind that 3 weeks ago, the guy said he knew of it....but didn't know the cause. Anyway, they want the entire wheel so they can make sure it's not a spoke or rubbing issue. These wheels cost $1000....I want mine to be perfect dammit.

    So there was a bad batch of freehubs? What else do you know?

  30. #30
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    no bad batch

    Quote Originally Posted by yater
    I bought the wheels from a friend who is a wrench at a shop. He called shimano today and they said they'd never heard of the problem. Keep in mind that 3 weeks ago, the guy said he knew of it....but didn't know the cause. Anyway, they want the entire wheel so they can make sure it's not a spoke or rubbing issue. These wheels cost $1000....I want mine to be perfect dammit.

    So there was a bad batch of freehubs? What else do you know?
    there wasnt a bad batch per say. the earlier ones were just prone to the popping noise. I got my group in september 06 and had a few pops when the wheel was new. My LBS called Shimano and they changed it out. the new one is great. no issues what so ever.
    Now if only I was as good as this stuff is everything would be perfect. the new generation of XTR just blows me away. I can beleive how good it is.

  31. #31
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    Interesting, I've notice the popping noise on occasion with my XTR 975 wheelset and had been wondering where the mis-shifting crunchy noises were coming from, because there was no shifting going on at the time I heard it, but was commonly heard after really rough and bumpy sections of trails, or hard cornering at an angle, and there was never any feedback through the pedals that felt like a chain/shifting problem. Time for a trip to my LBS to see about this XTR freehub replacement...

  32. #32
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    Quote Originally Posted by rockyuphill
    Interesting, I've notice the popping noise on occasion with my XTR 975 wheelset and had been wondering where the mis-shifting crunchy noises were coming from, because there was no shifting going on at the time I heard it, but was commonly heard after really rough and bumpy sections of trails, or hard cornering at an angle, and there was never any feedback through the pedals that felt like a chain/shifting problem. Time for a trip to my LBS to see about this XTR freehub replacement...
    Yep...no feedback at the pedals....Sounds like the same thing.

  33. #33
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    I took my XTR rear wheel into my LBS, they talked to Shimano and a replacement freewheel is on the way, that was painless. I have been blown away by the XTR 975 wheels in every other way. I'm right around 200 pounds and these are the stiffest wheels I've ever owned, no side flex at all.

    I used to have a set of light custom wheels with XTR hubs, X517 Mavic rims and double butted spokes and even when they were trued and tight they were a bit flexy. There's no trace of flex on these new XTR wheels even when cornering hard, and no wind up at all, they really accelerate.

  34. #34
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    Quote Originally Posted by peteypete
    I have worked in a bike store for the past 12 years and am a die-hard Shimano fan and have always ridden XTR. I prefer the durability and utter dependability of Shimano over SRAM any day of the week.

    That was until the first ride, when the freehub body started popping under load. Almost the whole staff of the shop I work at (6 of us) got the new bikes with the new XTR and were all experiencing the popping - definitely not confidence inspiring. One of the mechanics had his freehub seize up which promptly sheared his rear derailleur off, bent his front derailleur and badly scarred his cranks. Shimano sent out a box of replacement freehub bodies which seemed to have fixed the issue.

    A few of us have been experiencing missed shifts in the thumb paddle of th rapidfire shifters. Sometimes I will go to shift a few gears up (easier gear) and the shifter will miss completely and nothing will happen.

    Another problem three of us have had is that the cranks rotate a tiny bit on the spline of the crank. These cranks were installed properly at the Norco factory and then checked for proper installation at the shop. This problem is certainly not due to improper installation. The cranks do not rotate very far, just a small clunk back and forth when a different pedal load is applied. However small, this problem feels like it will get worse, not a cool thing with such expensive cranks.

    Then yesterday, my freehub body starts seizing up 20km from home, and I was forced to pedal continuously to prevent my derailleur from ripping off.
    I just find the begining statement very funny compared to what the poster wrote

  35. #35
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    XTR WH-M975

    I have got two sets of XTR WH-M975 wheels, both hubs have this annoying 'popping' noise

    I already sent an e-mail to the Belgian distrubutor, they haven't heard of this before

    Anybody had a peek inside the hub? Any signs of premature wear?

    XTR RD-M972 SGS

    Today I took my brand new XTR RD-M972 SGS rear derailleur out for a ride. After about 20km, while shifting a few cogs up (of course not under load), all of a sudden the chain is no longer tensioned. A closer look showed that the spring of the rear derailleur cage must have spun through or so. Took it back to the shop, they said they would sent it to Shimano to have if repaired?? Takes up three to four weeks

    I have got another RD-M972 SGS on my Epic, still running perfect - perhaps a one off?


    All other XTR components (triggers, pedals, crank, front derailleur and cassette) are flawless

  36. #36
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    The problem is just in the freehub in the XTR wheels. My XTR rear wheel is going back to my LBS next week and they're going to try another new freewheel as Shimano supposedly corrected the problem.
    Last edited by rockyuphill; 12-28-2007 at 04:53 PM.

  37. #37
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    Is there a way to identify which version is currently mounted?

  38. #38
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    sure love my full XO.....

  39. #39
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    Quote Originally Posted by madskatingcow
    Is there a way to identify which version is currently mounted?
    If it doesn't pop and skip it must be the newest one. You'll know if it's happening, it's not subtle.

  40. #40
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    All that was left for me to find was this thread right after ordering a set of XTR 970 shifters. Good job guys

    I hope all the issues (if any) are sorted out and my shifter is going to be flawless.
    "Winners never quit. Quitters never win. But those who never win and never quit are idiots."

  41. #41
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    I rode the XTR wheels for about 6 months. Had the popping a few times. I work at a shop. Called shimano on separate occasions and heard different stories. Sold wheels. Got mavics. Mavics pop occasionally.

  42. #42
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    DT Swiss 240S hubs never pop (but their XR4.1D / XR4.2D rims are too weak and not UST). Perhaps the Fullcrum Red Metal Zero wheels have better hubs

  43. #43
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    I run M970 shifters and mechs, but have M965 hubs. I've not had the siezing you've described with them. However, M97x were a major step up in hubs - lighter, 33% more engagement points, smoother.

  44. #44
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    XTR 2007 rear der with medium cage and 11-34 xtr 2006 casette - no issues
    XTR 2007 rf shifters with powercordz - 'blind' shift once in a week or so. It feels as if the shifters had some kind of a safety feature that allows the cable to slip if pulled too hard - it happens mostly if you try to shift further than the slowest sprocket or if you try to shift front der too aggresively. At least that's what happens to mine. I was wondering if this is not due to powercordz beeing so slick and slippery but this thread shows this might be the shifters issue. Not a very sad one though as it never happened during climbs/shifts under load.

  45. #45
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    I have found with my XTR-RD-952 (shadow) looses it`s tension after some km`s, it has happened to my twice, first after 50km and second one after 150km or so...I`m riding and suddenly I hear something touching the grounds (besides my tires)...it`s the chain that has looses all the tension, because of the p-spring inside the deraileur. The portion of the spring that goes into a hole just slips...I don`t know why this happens...has anyone else experienced this?

    thanks!

  46. #46
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    Got myself a pair of new XTR wheels, on first rides it seems like the popping issue is not present

    There is a small visual difference to be noted on the new set : the front wheel now seems to have some sort of balancing weight welded onto the rim, right across the presta valve. The front wheel of my previous set was just plain. The rear wheel has no visual differences though.

    Also, the new sets come with a free pair of XTR wheelbags, which is awesome!

    Last edited by madskatingcow; 01-09-2008 at 02:29 PM.

  47. #47
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    My '07 970 rapid rise rear derailleur grenaded last weekend during a race. I've been riding this setup for a few months and have had some problems sucking up the rear der. The chain jumps off of the lower pulley while climbing technical terrain and the der binds up in the chain. My setup was good...not pilot error. The biggest bummer is that Lance Armstrong was racing this race and I was right behind him. I think I'll try sram.

  48. #48
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    My 2007 XTR is fine

    I have had my 2007 XTR gruppo for a full year now. Absolutely flawless after hundreds and hundreds of miles on trails all over CA, NV, UT, and CO. My shifters are still rapid and flawless.

    I have friends with other equipment and they are constantly tweaking theirs and constantly taking their bikes to the shop for "adjustments". I just keep riding......

    bikerneil

  49. #49
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    They should have just tweeked the 952 line

    Quote Originally Posted by peteypete
    I have worked in a bike store for the past 12 years and am a die-hard Shimano fan and have always ridden XTR. I prefer the durability and utter dependability of Shimano over SRAM any day of the week.

    I received my full 2007 XTR Norco around Christmas time and was very excited about the new group, as XTR never fails to disappoint. Everything looked sweet about the new designs and the initial feel was perfect.

    That was until the first ride, when the freehub body started popping under load. Almost the whole staff of the shop I work at (6 of us) got the new bikes with the new XTR and were all experiencing the popping - definitely not confidence inspiring. One of the mechanics had his freehub seize up which promptly sheared his rear derailleur off, bent his front derailleur and badly scarred his cranks. Shimano sent out a box of replacement freehub bodies which seemed to have fixed the issue.

    A few of us have been experiencing missed shifts in the thumb paddle of th rapidfire shifters. Sometimes I will go to shift a few gears up (easier gear) and the shifter will miss completely and nothing will happen.

    Another problem three of us have had is that the cranks rotate a tiny bit on the spline of the crank. These cranks were installed properly at the Norco factory and then checked for proper installation at the shop. This problem is certainly not due to improper installation. The cranks do not rotate very far, just a small clunk back and forth when a different pedal load is applied. However small, this problem feels like it will get worse, not a cool thing with such expensive cranks.

    Then yesterday, my freehub body starts seizing up 20km from home, and I was forced to pedal continuously to prevent my derailleur from ripping off.

    I have been a mechanic for over a decade and am well aware of proper installation and maintenance procedures. I am wondering if there was a crappy first batch of the new XTR made, or if Shimano just rushed the group out to try to compete with the new flashy SRAM parts.

    Anyone have similar issues?
    I'm glad I didn't invest in the 960 line of XTR.

    Sorry to hear problems with the new XTR..
    Still, the 970 line looks pretty sweet, click shifters, regular rise, standard disc mounts, Shimano won't flounder long, they're Japanese after all.

    Do you think external bottom brackets bearings are a better deal than internal BB's?
    And when going external BB should the frames bottom bracket be faced?

  50. #50
    Nightriding rules SuperModerator
    Reputation: crisillo's Avatar
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    Jul 2004
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    Quote Originally Posted by Bike Nazi
    And when going external BB should the frames bottom bracket be faced?

    they should be faced for internal BBs too, but the external ones are more susceptible to it...

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