Repairing Stripped Crank Arm Pedal Threads
I fix the stripped pedal mounting threads in an aluminum crank arm. The original pedals had been seized in the cranks (probably galvanic corrosion between the steel pedal axles and the aluminum cranks). I managed to get them off, but they removed some of the threads with them. Using a Unior Pedal Tap and Thread …Read more »
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 »
Overhaul BMX Bottom Bracket with One Piece Crank Set
How to overhaul the bottom bracket on a BMX bike with a one piece crank set. I clean and lube everything. I could have replaced the bearings, but they looked like they were in good shape. The bike is a Trek Subvert 1.0.
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.
Convert From Square Taper to Hollowtech II Bottom Bracket/Crankset
How to remove square taper bottom bracket/cranks and install a Shimano Hollowtech II bottom bracket and crankset. The bottom bracket is a Shimano Ultegra 6800 (BBR60). Most Hollowtech II bottom brackets will require a Park Tool BBT-9 or BBT-19 tool, or equivalent. Due to the smaller diameter bearings/cups of the BBR60, I needed the newer …Read more »