ned1 Posted March 12, 2007 Report Share Posted March 12, 2007 i have an echo external bb..i need bolts for it... are they the m15 ones?thanks alotchris Quote Link to comment Share on other sites More sharing options...
spmcfadden Posted March 12, 2007 Report Share Posted March 12, 2007 http://www.echobike.com/index1.htmIf you go to the Echo website, Drivetrain, then half way down the page it says '15mm oversize CRMO head threaded hollow axle'. Quote Link to comment Share on other sites More sharing options...
ned1 Posted March 12, 2007 Author Report Share Posted March 12, 2007 ahh yes i saw that but didn't know whether that was the diameter of the axel and that it was threaed or the actual thread lol thanks Quote Link to comment Share on other sites More sharing options...
spmcfadden Posted March 12, 2007 Report Share Posted March 12, 2007 That's a good point, I assumed "head treaded" meant head threaded as in the thread diameter, but it probably means heat treated! Probably best to ask Tarty! Quote Link to comment Share on other sites More sharing options...
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