Shimano Compact FC-4500 Pinch Bolts
I have rounded the pinch bolts on my crank arm, it is a compact FC-4500. Does anyone know the size of these bolts to replace, I think it maybe an M6 19mm but am not sure, I have looked at techdocs but it is not clear as other similar ones have washers but mine do not????
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M6 x 19mm is indeed correct. I doubt they're any special grade of steel but if you want genuine Shimano then there's some Ultegra ones available...
http://www.ukbikestore.co.uk/product/118/1g3_9801/shimano-fc-6600--fc-6603-crank-clamp-bolt-m6-x-19-mm.html
and the schematic diagram..
http://techdocs.shimano.com/media/techdocs/content/cycle/EV/bikecomponents/FC/EV-FC-4550-2595B_v1_m56577569830707833.pdf0 -
Thanks a lot , the only thing that threw me was the washers in the diagram as mine do not have washers.0
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No problem mate. Looks like they should all have a washer - makes sense as tightening without a washer will mark the cranks.0
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You do have to get the shimano ones, a normal M6 has a head which will bind when tightened.0
