Cranksets

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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 »

How To Measure Crank/Chainrings Size BCD

I show how to measure a chainring or crank to be able to replace a chain ring. The main things you need to know are the number of teeth and the BCD (Bolt Center Diameter). Well, and the number of holes. I show what to measure and how to calculate or look up the BCD. …Read more »

How To Make A Cheap & Easy Cotter Pin Press For Cottered Cranks

I show how to make a cotter pin press tool for cottered crankset removal from old bikes. This can be made for around $5. Park Tool used to make a cotter pin press (CR-2) to remove cranks, but they don’t any more. To make the press, I use wide throat top beam clamps that I …Read more »