Bonz ProLight BB
Bonz Prolight ISIS bottom bracket available in 128mm and 122mm axle length, and 68mm shell width.
M15 steel axle and anodised aluminium alloy cups.
Replaceable sealed cartridge bearings keeps running smooth in all weather conditions.
Includes cranks bolts.
- 122mm: 275g (+45g steel bolts)
- 128mm: 286g (+45g steel bolts)