CYLINDER ONLY BIG BORE 63mm OVER SIZE 2008-2012 WR YFZ-R 125 MX-09155-1
Big bore cylinder replacement with a 63mm bore. Manufactured to OEM specifications with a Nikasil-plated sleeve for wear resistance. Features a cylinder-only design and typically allows for drop-in installation without case modifications. Specifications include AB4C aluminium material with a Nikasil-plated sleeve, bore size of 63.00 mm, coating hardness of HV500–600, and coating thickness of 0.08 ± 0.02 mm. Cylinder material spec is JIS AC4B-T6 aluminium with a hardness of HR65+. Cross-reference OEM part numbers include PSYCHIC MX-09155-1, 56-K139.63.CYL, 22BE13111000, 22BE13112000, 22B-E1311-10-00, and 22B-E1311-20-00.
- SKU
- 56-K139.63.CYL
- Brand
- Dirt Racing
- Availability
- In Stock (9)
FULL DESCRIPTION
Big Bore Cylinder Replacement - 63mm Oversize
Enhance the performance of your compatible Yamaha or Rieju motorcycle with this high-quality big bore cylinder. Designed as a cylinder-only replacement, this part is manufactured to meet original equipment manufacturer (OEM) specifications. It features a durable Nikasil-plated sleeve, ensuring excellent wear resistance for extended engine life.
Key Features:
- Cylinder only replacement part
- Manufactured to precise OEM specifications
- Nikasil-plated sleeve for superior wear resistance
- Designed for straightforward installation, typically without requiring case modifications
Specifications:
- Bore Size: 63.00 mm
- Sleeve Type: Nikasil
- Sleeve Hardness: HV500–600
- Sleeve Coating Thickness: 0.08 ± 0.02 mm
- Cylinder Material: AB4C aluminium
- Cylinder Material Specification: JIS AC4B-T6 aluminium
- Cylinder Hardness: HR65+
