Description
- Superlight and strong Ceramic bearings offer lower rotational mass for more efficient transfer of power to the road
- Ceramic Nitride Pro Series diamond polished bearings by World Champions ACER Racing
- Ceramic bearings require 78% less energy than the most efficient bottom brackets on the market
- Choose from: 68mm / 73mm Red for Shimano Mountain Bike Cranksets - 68mm Red for SRAM Road Cranksets - 68mm Red for SRAM Road Cranksets -
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