SRAM X0 GXP Double 10 Speed Chainring with AM Guard 4 Bolt – BlackSram X0 GXP Double 10 Speed Chainring with AM Guard 4 Bolt Black While other systems rely on side loading the bearings to eliminate play, which causes premature bearing wear, the GXP system is different. The GXP system captures the left side bearing between the spindle and the left crankarm while allowing the drive side bearing to float axially on the spindle, thereby eliminating the necessity to side load bearings during adjustment. The simplicity of