S3 Long Life Forged Piston Piston kitRef : SPART00221A / 1117810001

S3 Long Life Forged Piston - Rieju MR300 (ref. PI-963-A)

High-performance replacement for trail and enduro cross, this S3 Long Life forged piston is designed for 300 cc motorcycles such as GAS GAS / Rieju. Manufactured for a bore of Ø 71.94 mm (oversize A, STD), it is aimed at riders seeking durability and performance under stress.

Material & Treatment:

• High-quality aluminum-silicon alloy, forged for a dense and homogeneous structure
• Molybdenum disulfide (Moly) treatment on the skirt to reduce friction
• Nitrided steel rings for better wear resistance

The kit includes:

• 1 piston Ø 71.94 mm
• 2 rings
• 1 pin
• 2 C-clips

Benefits for the rider:

• Designed for longevity: finish and materials optimized for off-road endurance
• Reduced friction between piston and cylinder, promoting a more responsive throttle
• Thermal behavior and mechanical strength suited to the demands of cross

Frequent compatibilities: GAS GAS EC 300 (Ranger, Enduro GP, Racing Six Days). Brand: S3. Manufacturer reference: PI-963-A.