Originally Posted by
osiris419
I have never needed a special tool to remove cottered cranks I just bash out the cotter pins with a hammer and the arms come right off.
if you keep doing that then you'll ruin the pins thus making it near impossible to remove, I've done it before. Also, I had a super sketch conversion in high school that had cottored cranks and one day when riding down a hill somehow the crank caught on the edge of the chain because the chainline was off with such force it bent the back triangle causing me to wreck really hard. Honestly, I will never stop advocating against cottored cranks