2Bros Parts

KTM SX / EXC 125 1994-1997 GRADE B 54.20mm

$198.47Only 1 left

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Delivery to United States 5–8 business days

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Vertex pistons are manufactured using Low-Ex aluminium alloys with 12%, 18%, or 21% silicon, depending on the application. Pistons are produced via gravity casting or hydraulic forging, with material structure refined through advanced heat treatment in an automatic HT implant, including solubilization by quenching in hot water. Machining is performed using the latest CNC machines, software, and diamond tools to achieve specific surface finishes. Each piston undergoes rigorous manual and automatic quality control. Vertex pistons feature a special Molybdenum Bisulphite black coating for break-in and friction reduction, and a new Phosphate Coating for increased hardness, light surface porosity, and enhanced Molybdenum Coating adhesion and durability. This piston is 54.20mm.

Specifications
SKU
V.2361B
Brand
Vertex
Availability
In Stock (1)
SKU
V.2361B
Brand
Vertex
Availability
In Stock (1)
Delivery5–8 business days
14-Day ReturnsHassle-free
Easy CheckoutCard friendly
Product details

FULL DESCRIPTION

Vertex High Performance 54.20mm Piston (Grade B)

Enhance the performance and reliability of your engine with this precision-engineered Vertex piston. Designed for riders who demand top-tier quality and durability, Vertex pistons are manufactured using advanced aluminium alloys and cutting-edge production techniques to ensure peak performance under high-stress conditions.

Vertex utilises specialised Low-Ex (low expansion) Silicon-charged aluminium alloys, selected for their superior strength and stability. These pistons undergo a rigorous gravity cast or hydraulic forging process, followed by a state-of-the-art heat treatment in an automatic HT implant to refine the material structure for maximum longevity.

Key Features

  • Precision Engineering: Machined using the latest CNC technology and diamond-tipped tools to ensure exact tolerances and specific surface finishes.
  • Advanced Coating Technology: Features a Molybdenum Bisulphite black coating to reduce friction and assist during the critical piston break-in period.
  • Enhanced Durability: Incorporates an all-over Phosphate coating, inspired by Formula One technology, which increases surface hardness and improves the adhesion of the Molybdenum coating for extended service life.
  • Quality Assurance: Each piston undergoes strict manual and automatic quality control inspections to meet the highest industry standards.
  • Specifications: 54.20mm diameter, Grade B sizing.

Whether you are performing a routine rebuild or looking to restore factory-level performance, this Vertex piston provides the reliable combustion chamber seal and thermal management required for high-performance riding.

Before you buy

QUESTIONS? JUST ASK

Talk to John or Phil. Real people, Monday to Friday, 10:00 to 17:00 (UK time).

Call or email us with your make, model and year and we will check it for you before you order.

Yes. We ship from the UK. Orders ship within 3 working days, then delivery to the United States takes 5–8 business days. The delivery price is shown at checkout before you pay. 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.

Any customs duties or import taxes charged in the United States are paid by you when the parcel arrives. Any tax we collect ourselves is shown at checkout before you pay.

More answers in our FAQ.

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