Engineered for maximum durability, precise fitment, and optimal engine performance Kit includes a precision-machined piston, wrist pin, circlips, and high-performance piston rings Made with low expansion, low friction alloy - Husqvarna FC 250 (2024, 2023, 2025); Husqvarna FE 250 (2024); Gas Gas MC 250F (2025, 2024); Gas Gas EX 250F (2024, 2025); Gas Gas EC 250F (2024); KTM 250 SX-F (2024, 2023, 2025); KTM 250 EXC-F (2024)