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Clamping nut for crankset,
Compatible with Shimano cranksets FCM532, FCM542, FCM545, FCM552, FCM590, FCM591, FCM660, FCM665, FCM770, FCM771, FCM780 and FCM785.
Ref: 7977571418278
Color : Black
Overall rating: 4.6666665 out of 5 based on 12 reviews.
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"This top does the job!"
"This is exactly what I was looking for, so thank you for your spare parts. Since there aren't any real bike shops left, it's great that you're filling that gap."
"Used to replace the original, which was lost. No complaints—it matches the original nut in every way."
"Perfect for replacing a lost nut on an old SLX crankset"
"Wrong diameter. The chuck head warps when using an Allen wrench. Too fragile."
"Standard replacement. Fits my crankset; requires a dynamo wrench to install."
"Simple and effective, easy to install, and convenient for adjusting the bearing preload in the bottom bracket"
"The product is as described and does exactly what it's supposed to do."
"An essential part of the Shimano crankset; nothing to report—it does exactly what it's supposed to."