SUZUKI RM 250 2003-2012 GRADE B 66.35mm SINGLE RING RACE PISTON
4.4 Trustpilot 99.9% positive on eBay
Free UK delivery 2–4 business days
Spread the cost with 
18+, T&Cs apply
Vertex pistons are manufactured using Low-Ex aluminium alloys with 12% 18% or 21% silicon. They are produced using gravity cast or hydraulic forging processes. The material structure is refined using a hi-tech heat treatment process with solubilization by quench in hot water. Machining is completed using CNC machines and software with diamond tools to achieve specific surface finishes. Every Vertex piston undergoes rigorous manual and automatic quality control. Vertex pistons are coated with a special Molybdenum Bisulphite black coating for break-in and reduced friction. A new Phosphate Coating offers increased hardness and porosity for superior Molybdenum Coating adhesion and durability. This is a single ring race piston with a 66.35mm bore size.
- SKU
- V.2855B
- Brand
- Vertex
- Availability
- In Stock (4)
- SKU
- V.2855B
- Brand
- Vertex
- Availability
- In Stock (4)
FULL DESCRIPTION
Vertex Race Piston - Grade B - 66.35mm
Upgrade your engine performance with the Vertex Grade B race piston. Precision-engineered for high-performance applications, this single-ring piston is designed to deliver reliability, power, and optimal thermal efficiency under demanding riding conditions.
Vertex utilizes advanced Low-Ex silicon-charged aluminium alloys to ensure minimal thermal expansion and maximum structural integrity. Whether through gravity casting or hydraulic forging, these pistons undergo a sophisticated heat treatment process that refines the material structure for superior strength and longevity.
Key Features and Benefits:
- Precision Manufacturing: Machined using state-of-the-art CNC technology and diamond tools to achieve exacting tolerances and surface finishes.
- Advanced Coatings: Features a Molybdenum Bisulphite black coating to assist with the break-in process and significantly reduce friction during cylinder operation.
- Phosphate Coating Technology: Inspired by Formula One engine developments, the all-over phosphate coating provides increased surface hardness and light porosity. This enhances the adhesion of the Molybdenum coating, effectively doubling its durability.
- Quality Assurance: Every piston undergoes rigorous manual and automatic quality control inspections to ensure industry-leading standards.
- Performance Optimized: The 66.35mm diameter and single-ring configuration are specifically engineered to provide a lightweight, high-performance solution for competitive engines.
Vertex pistons represent the pinnacle of aftermarket engineering, providing a race-proven component that maintains consistent performance throughout the entire service life of the part.
QUESTIONS? JUST ASK
Talk to John or Phil. Real people, Monday to Friday, 10:00 to 17:00.
Call or email us with your make, model and year and we will check it for you before you order.
UK delivery is £4.99, or free on orders over £60. Orders ship within 3 working days, then delivery takes 2–4 business days. Delivery details
Yes. You have 14 days from delivery to return it, unused and in its original packaging. Contact us first and we will send you the return instructions. Returns policy
By card, PayPal, Apple Pay or Google Pay, or spread the cost with Klarna. Payment is taken securely by Stripe, and the options for your order are shown at checkout.
More answers in our FAQ.
Trade pricing available
Buying parts for your business? Apply for a 2BrosParts trade account.