High End - High Power Racing Cylinder "forextreme" 58.5mm -1mm GY6 160cc manufactured in Taiwan with the highest quality level.

The GY6 160cc high compression Big Bore performance cylinders are fully Plug and Play ready and fit into any GY6 engine housing (152QMI/157QMJ). The piston of this version is a specially designed pistons for maximum performance.

The liners are extremely tough, designed for heavy loads and durability.

The material properties and the most stable liner made of a special alloy provide a possible life-long cylinder.

Of course, the cylinder and carefully installed the carburetor jets are matched to the cylinder. With this high performance cylinder kit are available.

By 1mm height decreased by more compression, including Kolbenset tuning. This cylinder kit brings a much more significant performance than the standard cylinder kits same displacement class.

Installation instructions can be found here in PDF format: Installation Notes

The original camshaft is sufficient for this kit. A carburetor adjustment is - as with every cylinder change - mandatory. If the main jet is too small otherwise the engine overheated. If the engine in the mid range is making noises either the main jet is too small or the mixture set too lean. We recommend this because of the high compression cylinder a slightly oily carburetor adjustment for optimum cooling of the cylinder to achieve in all situations.

We recommend to use at least one 150cc one cylinder head or cylinder head tuning, because they have larger valves and a larger combustion chamber. This performance continues to rise and there is more mixture into the combustion chamber, which is keeping the engine cool too.
When using the original 125cc cylinder head we suggest in addition a cylinder base to use.

To assemble sure to use the supplied Bottom gaskets.

Delivery:

    High Racing Cylinder 58.5 mm,-1mm
    Racing pistons
    Piston pin + clip
    Tuning piston ring set veringerte, friction
    Base gasket
    Head gasket

160ccm performance Big Bore high compression Cylinder Kit GY6 152QMI 157QMJ  engine with 1mm less height for much more power and maximezed Performance.

Very good quality of "forextreme" Made in Taiwan!

The set is suitable for original Crankshaft 125/150cc 152QMI 157QMJ (57.8 mm stroke), depending on the need for tuning crankshafts crankshaft may be installed an aluminum spacer under the cylinder prevents the piston from striking the cylinder head.

The cylinder has exactly 155cc at 58.5mm. Our data are rounded to 160cc.

Plug and Play installation.

IMPORTANT! When using the tuning kit will void the ABE, and the warranty on the motor.