Originally Posted by
Mumonkan
when i built my first bike i read to grease the spindle, and ive not had any problems
why shouldnt i grease it?
Very bad idea, because it can result in overtightening of the crank arm for a given torque. If the crank arm bottoms out on the spindle taper it can actually get rounded out or even split apart. The goal is to develop sufficient friction between the crank arm and spindle taper to prevent it from moving once the two pieces have been pressed together.
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