Advertise on Bikeforums.net



User Tag List

Results 1 to 10 of 10

Thread: Rear Rim Issues

  1. #1
    Senior Member clydeosaur's Avatar
    Join Date
    Aug 2009
    Location
    Central PA
    My Bikes
    Cannondale Six5, Specialized Stumpjumper FSR & old Hard Rock
    Posts
    507
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Rear Rim Issues

    Hi guys/gals,

    I'm 6'4 @ 240 lbs and ride a Trek hybrid. I've owned the bike for a year and some change. I've been very happy with the bike, but the rear rim is killing me. The factory rim (Mavic 550 perhaps?) would occasionally pop a spoke (at the rim). After 5 I decided to talk to the LBS about an upgrade. The showed me two rims. The better of 2 was the one I purchased (Sun CR18 700c). 2 weeks later I pop a spoke @ the hub. They replace it. Tonight, same thing. I'm losing patience/getting frustrated. I'm very careful how/where I ride. Is the rim not up to par? If it makes a difference, I ride 28mm tires @ 110 #'s of pressure.

    Thanks

  2. #2
    Senior Member November's Avatar
    Join Date
    Oct 2007
    Posts
    196
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    How many spokes on that wheel?

  3. #3
    Senior Member Homeyba's Avatar
    Join Date
    Jul 2009
    Location
    Central Coast, California
    My Bikes
    Colnago C-50, Calfee Dragonfly Tandem, Specialized Allez Pro, Peugeot Competition Light
    Posts
    3,370
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    The problem isn't the rim the tire or the spokes, it's the wheel builder! You are buying machine built wheels. They are quite often over tensioned. Once you've broken a number of spokes you might as well start over with new spokes because you've stressed the remaining ones.

    Does your lbs know how to build a good wheel? If not you might want to start looking for someone who can. You can get good, strong wheels for not a lot of money. Just make sure they are built by someone who knows what they are doing!
    It doesn't get harder, you just go slower.

  4. #4
    Banned. Mr. Beanz's Avatar
    Join Date
    Dec 2005
    Location
    Upland Ca
    My Bikes
    Lemond Chambery/Cannondale R-900/Trek 8000 MTB/Burley Duet tandem
    Posts
    20,031
    Mentioned
    1 Post(s)
    Tagged
    1 Thread(s)
    Yup, the builder or even just the wheel guy at the shop. I bought an inexpensive set of rims at Performance. Believe it or not (so many dislike Performance shops), the wheel dude loosened then retensioned the rims. No problems at all from a $99 set of wheels.

    I would think the shop knowing you have problems would do the same for you. If not, they suck!

    Spokes breaking at the hub is a lack of tension problem. Even with a new wheel, you should take it back after 200 miles or so to be retensioned after the breakin period. If not,you are asking for trouble. That loctite and spoke prep stuff doesn't mean it doesn't need to be retensioned as so many shops will lead you to believe.

  5. #5
    Senior Member
    Join Date
    Mar 2006
    Posts
    1,396
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Clydes shouldn't buy wheels that are already made. They are most likely machine made and not well tensioned. You need to get wheels hand built by someone who knows what they are doing. Another option that might be cheaper is to buy a machine built wheel and then have someone who knows what they are doing loosen all the spokes and retension it.

  6. #6
    Gears? CliftonGK1's Avatar
    Join Date
    Jul 2006
    Location
    Philadelphia, PA
    My Bikes
    '08 Surly Cross-Check, 2011 Redline Conquest Pro, 2012 Spesh FSR Comp EVO, 2009 Spesh Singlecross
    Posts
    11,343
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by hammond9705 View Post
    Clydes shouldn't buy wheels that are already made. They are most likely machine made and not well tensioned. You need to get wheels hand built by someone who knows what they are doing. Another option that might be cheaper is to buy a machine built wheel and then have someone who knows what they are doing loosen all the spokes and retension it.
    Contradictory information, although the second part is exactly right.

    Like Beanz, I've got a wheel from Performance. I threw it on my stand and tensioned/trued it up, and I've had no problems with it (aside from the fact that I just don't like double butted spokes very much).
    "I feel like my world was classier before I found cyclocross."
    - Mandi M.

  7. #7
    Mad bike riding scientist cyccommute's Avatar
    Join Date
    Nov 2004
    Location
    Denver, CO
    My Bikes
    Some silver ones, a black one, a red one, an orange one and a couple of titanium ones
    Posts
    15,732
    Mentioned
    18 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by Homeyba View Post
    You are buying machine built wheels. They are quite often over tensioned.
    I'd say just the opposite. Almost all of the machine built wheels I've seen are undertensioned. One of them was so undertensioned that the spokes still had bend to them

    Learn how to build your own, clydeosaur. It's not hard and it impresses the ladies...or not
    Stuart Black
    Solo Without Pie. The search for pie in the Midwest.
    Picking the Scablands. Washington and Oregon, 2005. Pie and spiders on the Columbia River!
    Days of Wineless Roads. Bed and Breakfasting along the KATY
    Twisting Down the Alley. Misadventures in tornado alley.
    An Good Ol' Fashion Appalachian Butt Whoopin'.

  8. #8
    Senior Member Shimagnolo's Avatar
    Join Date
    May 2008
    Location
    Zang's Spur, CO
    Posts
    6,386
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by Homeyba View Post
    You are buying machine built wheels. They are quite often over tensioned.
    Over-tensioning can break rims, but not spokes.
    Breaking spokes is a symptom of under-tensioning.

  9. #9
    Senior Member Homeyba's Avatar
    Join Date
    Jul 2009
    Location
    Central Coast, California
    My Bikes
    Colnago C-50, Calfee Dragonfly Tandem, Specialized Allez Pro, Peugeot Competition Light
    Posts
    3,370
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by Shimagnolo View Post
    Over-tensioning can break rims, but not spokes.
    Breaking spokes is a symptom of under-tensioning.
    I didn't mean to imply that was the problem with this particular wheel. That was just a general comment about machine built wheels. I suppose it could cause some confusion...
    It doesn't get harder, you just go slower.

  10. #10
    Senior Member clydeosaur's Avatar
    Join Date
    Aug 2009
    Location
    Central PA
    My Bikes
    Cannondale Six5, Specialized Stumpjumper FSR & old Hard Rock
    Posts
    507
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Wow! Thanks for the responses guys. To November - the wheel is a 36 spoke. So the general consensus is that it's not a bad wheel, but bad set up / build? Interesting. I have been looking around at other bike shops due to the way my problems have been handled (for the last few months). I hate to badmouth anyone, But each time I had the problem, the spoke was replaced & I was handed the wheel. The LBS said they would look into it and gave me an estimate of 10 - 20 bucks. So, I will let you know what the update is - and I think I'm going to tell them to eat the fee for fixing / addressing the problem.

    Thanks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •