A direct-replacement standard-bore cylinder for Yamaha YZ125 (2005–2021) and YZ125X (2020–2022). Supplied as a bare cylinder only, this Psychic unit matches the OEM architecture with a 54.00 mm bore and nickel–silicon carbide plated aluminium construction, suitable for liquid-cooled two-stroke applications.

Features

• Direct replacement cylinder only (no head, valves, piston or gaskets included)


• Standard 54.00 mm bore to suit stock displacement


• Nickel–silicon carbide (Nikasil) plated aluminium barrel for low friction and wear resistance


• Designed for liquid-cooled two-stroke operation


• Compatible with OEM mounting and ancillary components for the listed models

Specifications

• Bore diameter: 54.00 mm (STD)


• Material: Aluminium


• Liner/coating: Nickel–silicon carbide (Nikasil)


• Cooling: Liquid-cooled


• Application: 2-stroke single-cylinder

Cross-Reference OEM Part Numbers

• 1C3-11311-21-00


• 1C3-11311-10-00


• 1C3-11311-20-00


• 1C3-11311-01-00


• 1C3-11311-00-00

Vehicle Fitments

• Yamaha YZ125: 2005–2021


• Yamaha YZ125X: 2020–2022