JY-110 49MM CYLINDER

JY-110 49MM CYLINDER

The JY110 49mm Cylinder is a replacement or performance cylinder used in small displacement motorcycles, particularly for the JY110 engine type—a common horizontal, air-cooled 4-stroke engine widely used in commuter bikes and scooters across Asia. With a bore size of 49mm, it offers a slight displacement increase over the typical 47mm stock version, improving torque and efficiency without major engine modifications. This cylinder is made from lightweight aluminum alloy with a durable iron liner or electroplated coating to ensure long-lasting wear resistance and efficient heat dissipation. "
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Product Introduction

Applications

 

 

  • Daily Use / Commuter Bikes: Commonly used in 100–110cc motorcycles and mopeds across Asia, such as models from Lifan, Loncin, Zongshen, or similar brands using the JY110 engine layout.
  • Engine Overhauls: Ideal replacement for worn or damaged cylinders in JY110 engines.
  • Mild Performance Upgrades: Offers a small bump in displacement compared to 47mm or 48mm cylinders, useful for slightly increased low-end torque.
  • Budget-Friendly Maintenance: An economical solution for routine engine servicing or rebuilding in utility motorcycles.

Specifications

 

 

Model Compatibility: Horizontal 4-stroke JY110 engine
Bore Diameter: 49.0 mm
Displacement: 100cc-110cc
Material: Cast aluminum alloy with iron sleeve (liner)
Cooling Type: Air-cooled
Mount Type: OEM-style fit for direct replacement
Surface Finish: Precision-machined for improved compression and sealing
Included Components: Cylinder + Piston + Rings + Pin +Clips+ Oil Seal + Gaskets

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