Precision sealed tiramic bearings, precision fit with no more plastic dust seals and Precision performance! A much-upgraded bottom bracket that features machined tool slots so the tool will not scratch your BB, modified low friction alloy seals with less drag and the lightest weight external bottom bracket offered today resulting in a Precision ride!

SPECS
TiramicFRAMEFIT- EuroBEARING- SealedWeight: 3.35oz