Bicycle Mechanics - Bottom bracket and fork threading HELP!!!!
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06-06-08, 04:02 PM
Hey I just recently bought this faggin track bike which as far as I can tell has an Italian threaded bb. Now im a total noob so I need some help figuring out what exact bb with spindle length I need.Like i'll look on ebay and there giving me all kinds of measurements and I have no idea what they are. So I NEED HELP!!
and The fork is a threaded fork and I assume since the bottom bracket is Italian threading, wouldn't that mean that the fork would be italian threading also?? I am a total noob and ready to learn. check the pic.
06-06-08, 04:11 PM
Measure the width of the bottom bracket shell. If it's 68 mm the frame is English threaded. If it's 70 mm it's Italian. The spindle width (and type) you need will be determined by the crank you choose so no recommendation is possible right now.
Italian threaded headsets and forks are usable with English threaded headsets and forks. The thread diameter and pitch are the same but the thread form is slightly different. If you install an English headset on that fork, you will be fine but don't go back to Italian afterwards.
06-06-08, 05:00 PM
Thanks! that really helps.
Do u guys have any Idea on what size crank arms I should use? like 165mm I guess?
06-06-08, 10:04 PM
With that bike u can use anything u want actually. What is important is to get the right stuff for it. I imagine that u know that u cant use that bike in any UCI events... nice bike.. loved it :) have fun :)
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