CeramicSpeed Ceramic MTB Bottom Bracket - BB30 to GXP (SRAM)

The CeramicSpeed Ceramic MTB Bottom Bracket BB30 to GXP solves a specific problem cleanly: running a GXP-spindled crankset in a BB30 shell, with bearing quality that outlasts and outperforms what came stock. The aluminum cups press into your BB30 frame shell, accepting any 24mm/22.2mm spindle crank — the standard used across SRAM's mountain drivetrain lineup. Inside those cups sit CeramicSpeed's Grade 3 Silicon Nitride balls, pressed into hardened steel races in dust-free clean rooms in Denmark. The case for ceramic bearings in a mountain bike bottom bracket is straightforward: lower rolling resistance and significantly longer service life. CeramicSpeed's silicon nitride balls are harder and smoother than standard steel, which means less friction under load and less wear over time — the kind of difference that compounds across long seasons of riding. Available in black or red to suit your build. CeramicSpeed Ceramic MTB Bottom Bracket Specs at a Glance Fitment: BB30 shell to GXP (24mm/22.2mm) spindle Shell diameter: 42mm inner diameter (BB30 standard) Shell width: 73mm Bearing material: Grade 3 Silicon Nitride ceramic balls in hardened steel races Available colors: Black, Red