Details
This is the aftermarket Airsal big bore kit for the 139QMB engine, also known as the GY6 50. Built with the same quality as Airsal's other cylinder kits the QMB model offers improved performance larger displacement, and improved cooling because of the aluminum material used. Turns your 50cc to 81.30cc
The Airsal 81cc aluminum cylinder kit strikes the ultimate balance between performance and price. Cast from aluminum, and coated with Scanimet (nickel silicon carbide) creates a high quality, performance cylinder that you can't beat. The properties of aluminum combined with the Scanimet coating give the Airsal cylinder a huge advantage over cast iron competitors.
Each kit consists of Cylinder, Cylinder Head, Piston Kit and Gaskets.
Performance Gains
An upgrade cylinder will produce increased torque and all around performance gains.
This part fits on all scooters using the GY6 50 139QMB engine. This is most chinese made 4 strokes including the following.
Kymco
- Agility 50 4t
- People 50 4t
- People S 50 4t
- Sento 50 4t
- Super 8 50 4t
- Vitality 50 4t
Vento
- Zip Li 4t
- Triton Li 4t
- 139QMB
And most 50cc 4t Chinese scooters.
Technical Specifications
- Diameter (Ø) - 50mm
- Actual displacement - 81.3cc
- Made with light weight aluminum for better cooling
- Superior port timing and power output
- Interior coating of Scanimet® (nickel-silicon carbide) for reduced friction and longer life
- Kit includes all gaskets, rings, piston, and circlips needed for installation.
- Each kit consists of Cylinder, Piston Kit and Gaskets.
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