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Tire rubbing?(2 posts)

Tire rubbing?crestlinefarm
May 6, 2003 12:25 PM
I have a Peugeot I picked up recently out of a guy's garage. It's been sitting for 10 years, so after a good cleaning & relubing, I took it to the street. A strange thing happened that I've never experienced. When I put some muscle on the cranks, the rear wheel makes contact with the left chainstay even with the QR clamped tight.
After getting a closer look, I found that I could pull the rim and tire over with my hand and make contact with the chainstay. I'm more of the "mechanic" type and not a wheelsmith, but thought that maybe the spokes are loose.

Has anyone else had this happen?
re: Tire rubbing?SenorPedro
May 6, 2003 1:17 PM
Well, I would just look below at the previous posts about the dropout screws. In my experience, any bicycle that I have had with semi-horizontal dropouts has these limit screws. Most of the time you will not need them for anything, but if you have a slippery QR, or if they are not lined up correctly with the axle, you might have problems. I encountered this when I converted an older roadie to fixed; when I stood up to power over a hill it pulled my wheel right into the chainstay and actually melted part of my tire. In this case I had removed the screws to achieve a longer dropout for tensioning the chain. The screws just help to keep the axle aligned correctly in the frame, as well as provide a counter force to the torque you put on the drive side of the rim. So if you have the screws, adjust them to align the axle appropriately and then tighten em up. If you have the holes, but no screws, get some.

If the spokes are loose, then you should be able to stand behind the bike, squeeze the rear brake with the tire on the ground and kind of rock the bike side to side. If there is play in the rim, then the spokes are very loose. Try just squeezing the spokes in the wheel, a bit of play is an indicator that they are loose.

Good luck