White Industries M/R30 Adjustable Crank Arm Ring (Black)

White Industries M/R30 Adjustable Crank Arm Ring (Black)
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Otherwise know as "bearing pre-load collars", the White Industries M/R30 adjustable crank rings are a part of the non-drive side crank arm and are used to adjust the bearing pre-load of the bottom bracket. 

Note: The collar must be threaded all the way onto the crank arm before installing the arm onto the spindle, otherwise damage may occur to the BB bearings or the collar. 

This product was added to our catalog on February 22, 2022