Dirt Racing Cylinder Kit 56.4mm Yamaha TZR125 LC125 RE125 R125 RR125

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Categories:
CYLINDER KIT
SKU:
56-K282.56.CK1
⚠️ Fitment note: The Make/Model filter is for guidance only. Please verify model / year / engine size in the product description before purchase.
The product description is the definitive fitment reference. If you’re unsure, message us and we’ll confirm fitment.

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
  • 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
£227.99
£227.99
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