Perfect Fit: This cylinder piston kit is compatible with 49cc 2-stroke engines for mini moto, dirt bike, ATV, quad, and pocket bike applications. High-Quality Materials: Constructed from durable metal materials, this kit offers rust resistance, corrosion resistance, and long-lasting performance. Function: The cylinder piston kit helps improve thermal efficiency, supports proper piston operation, and reduces friction and leakage. Excellent Performance: Designed to meet standard specifications, this piston set delivers reliable, stable, and high-sensitivity performance. Easy Installation: The kit installs easily without the need for modifications, cutting, or drilling. Components are securely fitted and resistant to loosening during use. Item Type: Cylinder Piston Kit Material: Metal Compatibility: Replacement for 49cc 2-stroke engine models used in mini moto, dirt bike, ATV, quad, pocket bike, and minimotorcycle applications Package Includes: 1 x Cylinder 1 x Piston 1 x Washer 2 x Retaining Rings 1 x Safety Pin 1 x Bearing 2 x Iron Hoops