85cc Malossi Racing Big Bore Aluminum Cylinder for Kymco 50cc Scooters. The best cylinder on the market for your 50cc GY6 or QMB139 Engine. Nikasil Lined. M3113243
COMPLETE CYLINDER 4-STROKE
TECHNICAL FEATURES
Cylinder
Material: primary aluminium alloy with a high content of hardened and tempered silicon, cylinder liner with silicon carbide coating in a galvanic nickel die and crossed smoothing with two diamond passages with very limited tolerances. Machining: on machine tools with high precision numerical control. Cylinder-piston connection with an allowance of 0.05 mm. Recalculated and upgraded heat exchange surfaces.
Piston
Ultra compact with 3 rings. Material: special aluminium alloy with high silicon content, low thermal expansion and a tin facing on the sliding surfaces. Machining on machine tools with numerical control. Lightened and reinforced. Upgraded heat exchange surfaces.
Piston rings
Compression - special rings with high sliding ease and very high mechanical resistance, in chromium-plated S10 spheroidal cast-iron. 1st scraper - ring in chromium-plated S10 spheroidal cast iron. 2nd three - piece scraper ring made of chromium-plated steel alloy.
Fits Kymco 50cc 4 Stroke
Chinese 50cc 4 Stroke