






⚡ Upgrade your ride, dominate the streets!
The Glixal ATMT1-011 139QMB Big Bore Cylinder Kit is a precision-engineered 50mm upgrade designed exclusively for GY6 139QMB 4-stroke engines. This comprehensive rebuild kit includes all essential components—piston, rings, gaskets, studs, and more—crafted from durable aluminum alloy. Compatible with a wide range of popular Chinese scooters and ATVs, it delivers a high-performance boost to your 50cc-100cc engine, making it the go-to choice for riders seeking reliable power and smooth upgrades.
| Manufacturer | AT MOTOR PARTS |
| Brand | Glixal |
| Model | 139QMB |
| Package Dimensions | 14.2 x 13.21 x 11.71 cm; 989 g |
| Item model number | ATMT1-011 |
| Manufacturer Part Number | ATMT1-011 |
| Material | Aluminum alloy |
| Manufacturer | AT MOTOR PARTS |
| Country of Origin | USA |
| Item Weight | 989 g |
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