How To Repair Damaged Crank Arm Threads
The bike I have been working on had damaged threads on one of the crank arms, making it difficult to remove. It seems like maybe they had been cross-threaded at some point. I bought a crank arm thread chaser tool from Bicycle Research Tools (TC-8) and used it to fix the threads in the crank …Read more »
How To Fix Chainring Wobble
If the chain rings on your bike wobble, or move side to side, rubbing against the front derailleur at portions of the rotation, first check to make sure they aren’t bent. If they aren’t bent, then you might try a different position in the spindle. Check out this video to see how to do it.