Bottom bracket – BB90 Trek Sram GXP
The CyclingCeramic bottom bracket boxes offer the best power transfer and durability on the market. Assembled by hand, the balls are inserted into the bearing precisely to obtain the best level of quality. These bearings are designed for your TREK bike equipped with a Sram GXP crankset. This bearing set is ready to plug a Sram GXP crank in a Trek BB90 road frame.