
PROX forged piston designed for the engine restoration of 125 Cross machines. Made for riders looking for an original manufacturer part as a replacement, this piston fits into engines designed with standard compression configuration and retains factory dimensions for faithful reconditioning.
Specifically suitable for 125 cross models such as KTM 125 SX (2025), HUSQVARNA TC 125 (2024), and GAS GAS MC 125 (2024). Before installation, check the cylinder bore, oversize dimension, and piston/ring clearance to ensure perfect compatibility with your engine. This part is intended for piston replacement only; inspection and adaptation by a technician is recommended for optimal installation.