The Ruption 1PC/3PC Crank Bearing Races are replacement bearing races for any unsealed American BMX bottom bracket and are sold singly. Due to the nature of the bottom bracket being unsealed, they need more regular maintenance. Replace those rough, worn out bearings with the Ruption 1PC/3PC Crank Bearing Races.
Buy Ruption Components from Chain Reaction Cycles, the World’s Largest Online Bike Store.
If you're not completely satisfied with an item you may return it within 12 months of purchase. We'll give you a full refund if the item hasn't been used or the component hasn’t been fitted.More information on returns