Forged and CNC-machined aluminum with precision sealed bearings for 2-pc cranks.

BSA 1.37" x 24T for 68/73mm shell.

Available colors: Black (shown), Blue, Red, Gold & White.

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Profile Racing is pleased to announce the arrival of the Outboard Bearing Bottom Bracket kit for Profile Race cranks. Outboard Bearings are larger, stiffer, smoother, and more durable that our existing Euro bottom bracket. At this time, we only have tube spacers for 68mm and 73mm BB shells, however, we will have the rest of the common BB shell widths available soon. The Outboard bearing kits are available in Black or polished cups. Also available are 8 colored cone spacers to choose from Black, Polished, Gold, Purple, Green, Blue, Red and Orange, we are sure to have a color for everyone's imagination Learn More