Motorcycle Engine Spare Parts Cylinder Block Comp

The motorcycle cylinder comp not only provides a channel for the piston to reciprocate, but also plays a role in supporting and fixing key components such as the piston, connecting rod and crankshaft. It is one of the key components to ensure the normal operation and power output of the engine.

High Precision
Our motorcycle cylinder comp is precision-machined using a five-axis CNC machine tool to ensure that the coaxiality error of each key mounting hole is controlled within ±0.01mm, which is much higher than the ±0.03mm tolerance range commonly seen in the industry. It can greatly reduce wear during the running-in period and extend the service life of the engine.

Good Heat Dissipation
The motorcycle cylinder comp is die-casted with ADC12 high-grade aluminum alloy, with a thermal conductivity of up to 96W/m·K, which is nearly twice as efficient as ordinary gray cast iron. Faster heat conduction helps the engine maintain a stable temperature when running at high speed for a long time, and prevents component deformation caused by overheating.

Wear Resistance
We use silicon plating technology to form a 0.1mm thick SiC ceramic coating on the inner wall of the cylinder, and its friction coefficient is as low as 0.08, which is much better than the 0.2 or above of the cast iron cylinder body. This greatly reduces the friction resistance when the piston moves, improves the overall fuel efficiency and extends the engine life cycle.

1) Cylinder
Mid Height: 69.5 mm

Total Height: 93.2 mm

Inner Diameter: 54 mm

Outer Diameter: 58 mm

2) Piston Kit
Total Height: 39.5 mm

Compression Height: 19.2 mm

Dome Height: 2.5 mm

Pin Diameter: 13 mm

3) Upper and Lower Gaskets

54mm Big Bore Kit – Cylinder, Piston, Ring, and Gasket Upgrade
(Converts 110CC (52.4×49.5) to 118CC (54×49.5))

This kit is compatible with ATVs, quads, pit bikes, dirt bikes, go-karts, and buggies.
For ATVs and quads, it fits engines from brands such as Loncin, Yamaha, Linhai, Honda, Zongshen, Buyang, Polaris, Bashan, Hsun, Shineray, Jinling, Kazuma, Lifan, Taotao, Suzuki, GS Moon, and various other Chinese manufacturers.

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