Motorcycle Accessories Cylinder Bore Size 54mm Piston Rings Full Kit For 125 SX XC-W 125SX 125XCW 125XC W 50330207100 This piston rings full kit is designed for use with a 54mm cylinder bore size and fits specific motorcycle models including 125 EX from 2001 to 2016, 125 SX from 2001 to 2022, and 125 XC-W from 2017 to 2019.The kit includes all necessary components for piston ring replacement and is constructed from metal for durability.It is compatible with OEM codes 50330007500 I, 50330007500 II, 50330007400 I, 50330007400 II, 50330007800 I, 50330007800 II, 50330007900 I, 50330007900 II, 50330207000 I, 50330207000 II, 50330207100 II, 50430007100 I, and 50430007100 II.The product is supplied in condition and matches the appearance shown in product images. Compatibility Disclaimer: This is an aftermarket replacement part.Any brand names or model designations mentioned are used solely for the purpose of demonstrating compatibility.