The Story
This Conversion BB is for installing a Shimano Hollowtech II steel spindle crank in either BB30 or PF30 mountain bike frame.
This bottom bracket is made of lightweight and durable aluminum with long lasting sealed cartridge bearings.

Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.
Description
This Conversion BB is for installing a Shimano Hollowtech II steel spindle crank in either BB30 or PF30 mountain bike frame.
This bottom bracket is made of lightweight and durable aluminum with long lasting sealed cartridge bearings.













