All of our bottom bracket offerings will use an appropriate Conversion Kit specific to the brand and model of crankset to be used. Our Conversion Kits are made to account for crank manufacturers' machining tolerances and ensure they mate perfectly with our precision bearings, extending product life, and reduce the potential for noise.

CONVERSION KIT #4 (PBB084)

For use with ThreadFit™ 24
For cranksets with 24mm spindles.

CONVERSION KIT #6 (PBB086) for SRAM GXP cranks.

For use with ThreadFit™ 24, ThreadFit™ T47 24i, ThreadFit™ T47 24x
68mm, 73mm, 73mm SB+, 86.5mm, 92mm, and 92mm SB+ BB shells.

CONVERSION KIT #16

For use with ThreadFit™ 24
100mm Threaded BB Shell
24mm Mountain Cranksets
Common Cranks: Shimano mountain, FSA mountain, Gravity, Race Face mountain, Surly

CONVERSION KIT #17
For use with ThreadFit™ 24
100mm Threaded BB Shell
24mm to 22mm Stepped Mountain Cranksets
Common Cranks: SRAM mountain, Bontrager mountain, TruVativ mountain, Zinn mountain

CONVERSION KIT #20
For use with ThreadFit™ 24
68mm Threaded BB Shell
24mm BMX Cranksets
Common Cranks: Shimano