All Balls Racing Repair Kit - Hardened steel sleeves with precision-finished surface - Needle bearing made of heat-treated steel - Coated and hardened sockets - including Simmerring and lower springbeat set Ref: 773.03.55. Model and Part Number Compatibility. Suzuki RM 125 2002 - 2003 Suzuki RM 250 2002 - 2003 Ref:773.03.55.