CYLINDER KIT 56.4mm YAMAHA TZR125 LC125 RE125 R125 RR125

56.4mm cylinder kit designed for Yamaha and Derbi 125cc models. This kit includes a high-quality forged aluminum piston and meets or exceeds OEM quality standards. It serves as a direct replacement and ensures durability and reliable performance.

Features

• Direct OEM replacement


• Meets or exceeds OEM quality standards


• Forged aluminum piston for strength and longevity


• Chrome-plated piston rings for enhanced durability


• Easy to install; professional installation recommended if unsure

Specifications

• Bore Size: 56.4mm


• Stroke: 50.0mm


• Displacement: 124cc


• Piston Pin: 16mm x 47mm


• Piston Height: 64.4mm


• Number of Piston Rings: 2


• Upper Piston Ring Thickness: 1mm


• Second Piston Ring Thickness: 1mm


• Outlet: Oval


• Cylinder Type: 3BN00

Replacement Part Numbers

• Cylinder: 3BN-11311-00


• Piston (Standard): 2YK-11631-04-35


• Piston Pin: 137-11633-00


• Piston Ring Set (Standard): 3XC-11610-00


• Circlip: 93450-17129

Vehicle Fitments

• 1987-1992 Yamaha TZR 125


• Yamaha DT R/RE/X 125


• Yamaha TDR125 3BN


• Yamaha TZR R / RR 125


• Derbi GPR 125