Wednesday, April 15, 2009

Tire Lump

Speaking of my 'Roubaix' bike, I had to solve a curious tire problem with that machine. The ride was smooth other than a once-in-a-revolution pogo bump I was getting. Spinning the tire in the air showed a significant high spot. I thought that maybe the tire casing was defective, letting the tube bulge out, but when I pulled the bead away from the rim, I saw something different. The thick area around the valve of the tube was so wide that it didn't allow the bead to seat properly. You can see that in the picture above. Solution - new tube. I chalked this one up to tube manufacturer quality control.

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