Cranksets

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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 »

Overhaul Vintage Italian Bottom Bracket

I diassemble, clean, replace the bearings, lubricate and re-assemble the bottom bracket on a 1974 Atala road bike. I also replaced the cotter pins which required filing new ones. Here is my video on making a cotter pin press:  

Convert From Cottered Crankset to Square Tapered Cranks/Bottom Bracket

I show how to replace a vintage cottered cranks/bottom bracket to a newer style square taper bottom bracket and crankset. Covered is removing the cottered crank set and bottom bracket, measuring, and choosing a new square taper BB, and installing the new bottom bracket.

Removing VERY Stuck Crank Arm With Damaged Threads

I battle to remove a hard stuck crank arm with damaged threads. I managed to get it off. If it hadn’t come off when it did, my next step was to heat up the crank arm with a heat gun while the puller had it under pressure. The aluminum might have expanded slightly allowing it …Read more »