Join Date: Jul 2002
Location: Oxford, UK or Mountain View, Ca
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Originally Posted by trail-rider
I'm not close to my bike so I have trouble visualizing this but when removing the BB cup using a longer crank bolt it seems like you might run the risk of stripping the crank bolt threads because the bolt keeping the tool on is opposing the unthreading of the cup. Does this sound reasonable? I suppose you could just bolt the tool on fairly lightly so it doesn't put as much stress on the threads, but then you wouldn't get as much force keeping the tool on.
On the chainwheel side they'll move together, if it's a cartridge bb. On the non drive side, there's little risk of stripping, as you can feel when the tool begin to push against the bolt. Things don't have to be tight to hold the tool in place, so you can leave a little slack, say 1/2 turn and keep "inching" the tool out, loosening the bolt a bit etc., etc., until things are loose enough that you dont need the bolt. Just make sure the bolt has 4 or more turns of engagement in the spindle.
Get a bicycle. You will certainly not regret it, if you live.