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| Best Seller  | Size:69mm Valve Length Fitment: Jonway 49cc 50cc 4 stroke scooters like warrior 50 50cc 4 stroke like Agility 50 People S50 4T Suer 8 50 4T Pagsta mini 49cc Baja 49cc 50cc 4stroke scooters like motorsports SC-50 sun city primo DR50 Dirt Runner 49... more | FREE shipping go to store |
 | CYLINDER HEAD 100CC W/ 69MM VALVES FOR SCOOTER BIG BORE KIT 100cc Cylinder Head & Valve Assembly GY6 / QMB139 4-Stroke Engines. 100cc w/ 69mm Valves for Scooter Big Bore Kit Our high quality parts are the exact replacement part for many Chinese manufactured brands and models of Chinese Mopeds and Scooters.... more | FREE shipping go to store |
| Best Seller  | Fit Model: Eaglecraft 150 Znen 150 Tank 150 Retro 150 Kymco Agility 150 4 stroke Taotao 150 4 stroke Lance Vintage 150 BMS 150 Baja SC150 Jonway 150 Vento 150 Shenke 150 Carbide 150 Quantum 150 Zircon 150 Helix 150 Manco 150 American Sportworks 150... more | FREE shipping go to store |
 | 1�Part Number: The chainsaw piston and cylinder kit OE number is 1122?020?1211 for reference assisting you easily find exactly what you need please double check before purchasing. 2�Ideal Application: The superior piston and cylinder kit is... more | go to store |
 | 50mm Big Bore Cylinder Piston Ring Valve Oil Seal Kit for GY6 100cc Scooter ATV Please note this kit is only used for GY6 139QMB 4-Stroke Engine. Inner Diameter of Cylinder: 50mm Outer Diameter of Piston Pin: 13mm Include Cylinder Piston Piston Ring Piston Pin Piston Pin Clip Valve Oil Seal Gaskets Tensioner Gasket Exhaust Gasket... more | FREE shipping go to store |
 | GY6 125cc/150cc Engine Upgrade to 180cc with Cylinder Head Valves and Rebuilt Kit 61mm Big Bore kits with Piston and Ring Assy for 152QMI 157QMJ Engine Chinese Scooter Moped ATV Go Kart Quad more | FREE shipping go to store |
 | EGR Head for 80cc Big Bore Kit GY6 Scooter 69mm Valves 80cc Cylinder Head & Valve Assembly QMB139 / QMI139 4-Stroke Engines. 69mm Valves Valves size: 69mm (2.7 inches) Intake Bolt Hole Spacing: 44.75mm (1.8 inches) Exhaust Bolt Hole Spacing: 49.75mm (1.9 inches) more | FREE shipping go to store |
 | 100cc Big Bore Performance Kit GY6 50cc 139QMB Chinese Scooter 64mm Valve CK16 100cc Big Bore Performance Kit for GY6 50cc 139QMB Chinese Scooter with 64mm valve CONDITION: BRAND NEW This kit comes with: 1 - Head (64mm valves) 1 - Cylinder (50mm ID) 1 - Piston 1 - Wrist Pin (13mm OD) 1 - Complete Gasket set 6 - Rollers (18mmx13mm... more | FREE shipping go to store |
 | Head for 100cc Big Bore Kit 64mm Valves Scooter Moped GY6 139QMB Head for 100cc Big Bore Kit 64mm Valves Scooter Moped GY6 139QMB pgraded 100cc Cylinder Head & Valve Assembly QMB139 / QMI139 4-Stroke Engines. 64mm (2.5 inches) Valves Intake Bolt Hole Spacing: 44.75mm (1.8 inches) Exhaust Bolt Hole Spacing: 49.75mm... more | FREE shipping go to store |
 | Head for 60cc Big Bore Kit 64mm Valves Scooter Moped GY6 139QMB Head for 60cc Big Bore Kit 64mm Valves Scooter Moped GY6 139QMB Upgraded 60cc Cylinder Head & Valve Assembly QMB139 / QMI139 4-Stroke Engines. 64mm (2.5 inches) Valves Intake Bolt Hole Spacing: 44.75mm (1.8 inches) Exhaust Bolt Hole Spacing: 49.75mm... more | FREE shipping go to store |
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