## Complete Cylinder 47.00mm 80cc, Cast Iron, 13mm Pin, 139QMB/QMA (GY6 50) 4T Boost the power of your GY6 50 (139QMB/QMA) engine scooter with this high-quality, cast iron 80cc cylinder. This complete kit offers a significant performance increase compared to the standard cylinder, providing a more dynamic riding experience. Designed for long life and reliability, this cylinder is the ideal solution for tuning enthusiasts. ### Durability and Precision Manufacturing Made of durable cast iron, this cylinder is more resistant to wear than aluminum counterparts, resulting in a longer lifespan. Precise manufacturing guarantees a perfect fit and optimal engine operation. Additionally, the cast iron construction allows for potential re-boring in case of seizure, further extending the product's life. ### Complete Kit, Ready to Install The kit includes everything you need for installation: a complete piston, cylinder, head gasket, and cylinder gasket. This makes installation quick and easy, so you can enjoy the increased power of your scooter in no time. ### Technical Data: * **Cylinder Capacity:** 80cc * **Cylinder Bore:** 47.00mm * **Piston Pin Diameter:** 13mm * **Overall Height:** 71mm * **Height without Sleeve:** 53mm * **Outer Sleeve Diameter:** 52.5mm * **Stud Spacing:** 50mm * **Material:** Cast Iron ### Compatibility: This kit fits most Chinese scooters, as well as branded 4T scooters with a 139QMB/QMA (GY6 50) engine. ### Summary: This 80cc cylinder is an excellent way to increase the power and dynamics of your scooter. Its robust construction, precise manufacturing, and complete kit guarantee satisfaction and long, trouble-free operation.