ProX pistons provide a reliable and cost-effective way to maintain the engine in excellent condition. Shop and Save big on Happy Sales HSSS-BKONBK, Pefect 5 pc Japanese Design Ceamic Sake set, Black on Black fom the depatment, and moe fom 🛍️ The etail Maket Special ring setup for improved durability and resistance to wear Packed in a box containing piston, rings, wrist pin, circlips. Pro-X 53.97MM Standard Bore (Size D) Piston Kit 1990-1999 Suzuki RM125 01.3214.D. (D) - Standard... ProX Pro X Racing Piston Kit 90-99 Suzuki RM125 RM 125 (53.97mm) 54mm Bore JAPAN High-quality cast piston made with dedicated tooling and molding. Shop High Quality Suzuki RM125 Crankshaft Kit Bottom End Rebuild Some pistons come with Full MoS2 skirt coating for improved breaking in and resistance to scuffing Some pistons come with Full MoS2 skirt coating for improved breaking in and resistance to scuffing. Usage of high-quality rings such as Riken for optimum heat transfer and sealing. Made from hypereutectic alloy for extra strength and reduced expansion.