## Complete Cylinder 44.00mm 60cc, Cast Iron, 13mm Wrist Pin, 139QMB/QMA (GY6 50) 4T This high-quality, cast iron 60cc cylinder kit is designed for 139QMB/QMA (GY6 50) 4T engines. The robust cast iron construction ensures long life and reliability. The kit includes the cylinder, piston, piston rings, wrist pin clips, wrist pin, and a complete gasket set, ensuring a hassle-free installation. ### Advantages of a Cast Iron Cylinder: * **Strength and Durability:** Cast iron is known for its wear resistance, resulting in a longer cylinder lifespan. * **High-Temperature Resistance:** Cast iron handles high temperatures better than aluminum, which is especially important in engines operating under heavy load. * **Re-boring Capability:** In case of seizure, a cast iron cylinder can often be re-bored, restoring its original performance. ### Technical Specifications: * **Cylinder Capacity:** 60cc * **Cylinder Bore:** 44.00mm * **Wrist Pin Diameter:** 13mm * **Overall Height:** 70mm * **Height without Sleeve:** 53mm * **Outer Sleeve Diameter:** 48.6mm * **Stud Spacing:** 50mm ### Application: This kit is ideal for scooters and motorcycles with 139QMB/QMA (GY6 50) 4T engines, looking for increased power and performance. High-quality manufacturing and precision guarantee smooth operation and long life.