HONDA CR 250 1997-2001 OVERSIZE PISTON 67.45MM TWIN RING
Vertex pistons are manufactured using Low-Ex aluminium alloys with 12%, 18% or 21% silicon. Pistons are made using gravity cast or hydraulic forging processes, with material structure refined through a hi-tech heat treatment. Machining is completed using the latest CNC machines and software, with diamond tools to achieve specific surface finishes. Each Vertex piston undergoes rigorous quality control. Vertex pistons are coated with a special Molybdenum Bisulphite black coating for break-in and reduced friction. A new, all-over Phosphate Coating offers increased hardness and light surface porosity for superior adhesion and durability. This is an oversize piston measuring 67.45mm with twin rings.
- SKU
- V.2581.110
- Brand
- Vertex
- Availability
- In Stock (1)
FULL DESCRIPTION
Vertex Oversize Piston 67.45mm Twin Ring
Engineered for high performance and reliability, this Vertex oversize piston is designed to restore power and optimize internal combustion efficiency. Using advanced manufacturing techniques, Vertex provides a premium replacement component that meets the rigorous demands of two-stroke engine operation.
Advanced Material Construction
Vertex pistons are crafted from specialized Low-Ex (low expansion) aluminum alloys with silicon content ranging from 12% to 21% depending on the specific application. These blanks are produced through either gravity casting or hydraulic forging, followed by a sophisticated heat treatment process in an automatic HT implant. This method ensures a refined material structure that enhances durability and thermal stability.
Precision Engineering and Coatings
Every piston is machined using high-precision CNC technology and diamond tooling to achieve exact specifications and superior surface finishes. To ensure longevity and smooth operation, these pistons feature a multi-layer coating system:
- Molybdenum Bisulphite Coating: A black friction-reducing coating that assists during the critical engine break-in period and minimizes drag during operation.
- Phosphate Coating: Drawing from Formula One engine development, this secondary coating provides increased surface hardness and light porosity. This improves the adhesion of the Molybdenum coating, significantly extending its wear resistance and durability.
Quality Assurance
Vertex maintains strict production standards. Each piston undergoes a comprehensive quality control process, involving both automated and manual inspections, to ensure that every unit meets the highest level of performance and structural integrity before leaving the factory.
Key Features
- 67.45mm oversize diameter for cylinder refresh
- Twin ring design for consistent compression and sealing
- High-silicon aluminum alloy construction for low thermal expansion
- Advanced heat-treated structure for maximum strength
- Molybdenum Bisulphite and Phosphate coated for reduced friction and extended life
- Precision CNC machined for optimal fitment and performance