Piston Rings for Chinese 90cc ATV Engines [47mm] Click VIEW ALL PISTON KITS Chinese ATV Parts, 90cc Parts, Engine Rebuild Kits, Motor Parts for Chinese ATVs, Dirt Bikes and Go Karts. Our high quality Piston Rings are the exact replacement part for many Chinese manufactured brands and models of Chinese ATVs, Dirt Bikes, Go Karts and Scooters. This Chinese Engine Part fits many models and makes of Chinese Engines. Chinese Engine Piston Rings - 90cc engines. Fits piston that measures approximately 47mm in diameter and uses a 13mm piston pin. Piston Rings. Also available is a Chinese ATV Repair Manual with step by step instructions for installing this kit complete with timing mark instructions and bolt torque specifications. Click here for: Chinese ATV Engine Repair Manual | 
