The PressFit GXP system is designed for SRAM GXP spindle cranksets and requires a 41mm inner diameter bottom bracket shell and 86mm case width. Advantages of the bottom bracket system are the lighter weight, greater bearing durability and stiffness, easier installation and adjustment.

For fitting SRAM and Truvativ GXP cranksets to BB86 (86.5mm) press-fit, non-threaded bottom bracket shells