Cylinder Kit, Airsal 50mm Big Bore 80cc for 50cc 4-Stroke 139QMB Scooters

50mm Airsal 80cc Big Bore Cylinder Kit for 50cc 4-Stroke 139QMB Scooters

INCLUDES:

• Upgrades to 81.3cc
• Cylinder Bore: 50mm
• Cylinder Sleeve Outer Diameter: 54mm
• Compression Height of Piston: 20mm
• Cam Hole Diameter: 6.5mm

COMPATIBILITY:

• Amigo – 50cc 4-Stroke Scooters
• Apollo – 50cc 4-Stroke Scooters
• Baotian – 50cc 4-Stroke Scooters
• Baron – 50cc 4-Stroke Scooters
• Bintelli – 50cc 4-Stroke Scooters
• BMS – 50cc 4-Stroke Scooters
• Coolster – 50cc 4-Stroke Scooters
• CSC – 50cc 4-Stroke Scooters
• Diamo – 50cc 4-Stroke Scooters
• Flyscooter – 50cc 4-Stroke Scooters
• Ice Bear – 50cc 4-Stroke Scooters
• Italica – 50cc 4-Stroke Scooters
• JCL – 50cc 4-Stroke Scooters
• Jonway – 50cc 4-Stroke Scooters
• Kandi – 50cc 4-Stroke Scooters
• Kinroad – 50cc 4-Stroke Scooters
• KMD – 50cc 4-Stroke Scooters
• Kymco – 50cc 4-Stroke Scooters
• Lance – 50cc 4-Stroke Scooters
• Leike – 50cc 4-Stroke Scooters
• Linhai – 50cc 4-Stroke Scooters
• Longbo – 50cc 4-Stroke Scooters
• Motobravo – 50cc 4-Stroke Scooters
• Motofino – 50cc 4-Stroke Scooters
• Motorino – 50cc 4-Stroke Scooters
• NST – 50cc 4-Stroke Scooters
• Peace – 50cc 4-Stroke Scooters
• Puma Cycles – 50cc 4-Stroke Scooters
• Redstreak – 50cc 4-Stroke Scooters
• Roketa – 50cc 4-Stroke Scooters
• Scootstar – 50cc 4-Stroke Scooters
• Schwinn – 50cc 4-Stroke Scooters
• SSR – 50cc 4-Stroke Scooters
• SUNL – 50cc 4-Stroke Scooters
• Supermach – 50cc 4-Stroke Scooters
• SYM – 50cc 4-Stroke Scooters
• Tank Sports – 50cc 4-Stroke Scooters
• TaoTao – 50cc 4-Stroke Scooters
• Trailmaster – 50cc 4-Stroke Scooters
• Veloz – 50cc 4-Stroke Scooters
• Verucci – 50cc 4-Stroke Scooters
• Vitacci – 50cc 4-Stroke Scooters
• Viva – 50cc 4-Stroke Scooters
• Wolf – 50cc 4-Stroke Scooters
• Xingyue – 50cc 4-Stroke Scooters
• ZNEN – 50cc 4-Stroke Scooters

Airsal 50mm Big Bore Cylinder Kit for Kymco Agility 50 and QMB139 50cc Engines. Kit includes cylinder, piston, rings, piston pin, cir clips, and gaskets. Aluminum cylinder construction for better heat dissipation.

When used in conjunction with a stock crankshaft the total displacement comes out to 81.3cc! Your stock head can be reused. High compression piston included! .5mm taller than most standard 50mm big bore kits.

**NOTE: YOU CAN USE YOUR STOCK CYLINDER HEAD TO COMPLETE INSTALLATION. You will also need to break in scooter at 20-25 mph for the first 300 miles to allow engine to adjust accordingly.

**NOTE: DELIVERY MAY TAKE UP TO 1-2 WEEKS**

**MADE IN SPAIN**

**NOTE: Electrical, High Performance, Aftermarket items are non-returnable so please check photos and specifications before ordering.

Please see our Warranty and Returns Policy