The GXP system does not rely on a lateral load to adjust the bearing clearance as other systems do, but the left bearing is clamped between the bottom bracket axle and the left crank arm. This allows the right-hand bearing to move axially freely on the bottom bracket axle. This prevents premature bearing wear.
Technical Information:
Cup Material : Aluminium, CNC machined
Bearings : Cartridge bearings, sealed
Threads : BSA or ITA
Shell Width : 68/73 / 70 / 83 or 100 mm
Other : Anodized
BSA 83:
Threads : BSA
Shell Width : 83 mm
Finish : Team (tungsten grey)
Manufacturer Number : 00.6415.045.060