Join Date: Feb 2005
Bikes: Trek 5500, Colnago C-50
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Since the same part of the rim is going out of true repeatedly, this is likely a sign the there is something wrong with the rim. Check for cracks near the spoke holes. If the rim has any cracks the spokes near the cracks will gradually loosen causing the wheel to go out-of-true. This is a fatal condition. Or the rim is bent or warped, this could be the cause for the uneven tension. With the wheel laterally true hang the bike off the ground, turn the wheel and see if you can detect a flat spot (out-of-round). It's possible that your mechanic is using uneven tension to make the bent or warped rim true and round. Often a good mechanic can fix a bent rim, especially if the problem is only a slight lateral warp, just be sure to get a repair cost estimate before proceeding.
The pinging noise is an indication of loose spokes, and it's the loose ones that usually break.
Last edited by Al1943; 10-10-06 at 12:47 PM.