Taper square axle sealed cartridge BB.
Specifications
JIS standard taper
Sealed Cartridge Bearings
BB Shell Width: 68mm
Steel shell and Cr-Mo axle
Cup Thread - BC 1.37 x 24T
Axle Screw - M8 x P1.0 Flange Screw (NOT Included)
Average Weight - 338g (113mm)