PT-6635AT
Adapts for BB386 frame
Fit SHIMANO cranksets
L/R cups OD46mm w/ threaded lock on design
Width:86.5mm
Weight:133g
Bearings:Sealed cartridge bearings 37 * 7 (R451)
Material:CNC machined AL6061 cups
Finish:Anodized color available
Option PT-6635ATCB Ceramic bearings