The sram bb gxp team pressfit is a variant of the external bottom bracket for road use pressfit cuts weight by up to 40 grams and provide easier installation by allowing you to press the bearing cups into the frame instead of threading them theres no change to the crank spindle length and diameter are standard gxp red force rival apex key features external bottom bracket for road use pressfit cuts weight by up to 40g easy installation length and diameter are standard gxp red f