PF30 Bottom Bracket for SRAM GXP MTB Bearing Type:Coated Bearing It is usable for all

It is usable for all disciplines and conditions

For Bosch Gen4 eMTB systems

The BB30 bottom bracket allows you to pair 30mm spindle cranks to 42mm inner diameter bottom bracket shells

Front Hub Metron (Rim)

PF30 Bottom Bracket for SRAM GXP MTB Bearing Type:Coated Bearing It is usable for allPF30 Bottom Bracket for SRAM GXP MTB PF30 MTB standard shares a shell diameter, 46mm, with the road version, but has a wider shell, 73mm. It was introduced to give frame builders more design flexibility. This parcel helps you to mate your Quarq and SRAM cranks with a PF30 MTB frame. PF30 Bottom Bracket for SRAM GXP MTB comes with Coated Bearings installed. The Coated Bearings have an additional benefit: a 3 micron thick metallic layer over the races.