The heart of your drive chain is in many respects the bottom bracket. Certainly it has the toughest job, having to operate in a dirty environmnet at the underside of the bicycle and cope with more than the full weight of the rider when clipless pedals are used. Our bottom brackets include sealed cartridge types for long life as well as specific NJS designs from the Japanese track scene.
Fitting a Phil BB? You'll need a pair of mounting cups