PF30A24/BB30A24/BSABB30
PT-6639A
For SHIMANO / PF30A24
PF30A BB for 24mm spindle L/R cup 46mm
Compatible with SHIMANO groups
L/R cups w/ threaded lock on design
Weight: 149g
Width: 73mm
Bearings: Sealed cartridge bearings 37 * 7 (R451)
Material: CNC machined AL6061 cups
Finish: Anodized color available
Option PT-6639ACB Ceramic bearings
Option PT-6639AM compatible with SRAM groups
PT-6639A Drawing download