[ Material] Made of premium aluminum alloy for durability.
[High Performance] Ensures stable performance and reliability.
for Gy6] Especially designed for gy6 4 stroke 139qmb/139qma.
[Direct replacement for] Original standard for easy and replacement for.
[Precise Design] The cylinder diameter is 47mm, and cylinder head valve length is 64mm.

Spec:

Feature:
The diameter of cylinder is 47mm, and the length of cylinder head valve is 64mm.
Made of Aluminum alloy and sturdy in use.
Original standard, direct replacement for the original one.
Precise design, high performance and stability.
Especially designed for GY6 4 Stroke 139QMB/139QMA.
Specification:
Condition: Brand new
Material: Aluminum alloy
Color: Silver
Package Weight: Approx 996g
Cylinder Quantity: 1
Displacement: 80cc
Cylinder Head Valve Length: Approx 64mm/2.52in
Cylinder Diameter: Approx 47mm/1.85in
Package Include:
1 * Engine Cylinder Head assembly
Note:
1. This is a non- head, it does not have port.
2. Please check the size before purchasing.
3. Please allow 1-3cm error due to manual measurement. Thanks for your understanding.
4. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.