2Bros Parts

KTM SX 300I (FUEL INJECTED) 2023 GRADE D 71.955mm TWIN RING PISTON

$324.90

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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 content depending on the application. Pistons are made using gravity casting or hydraulic forging, with the material structure refined through a hi-tech heat treatment process. Machining is completed using the latest CNC machines and software with diamond tools to achieve specific surface finishes. Every Vertex piston undergoes rigorous quality control. Vertex pistons are coated with Molybdenum Bisulphite for break-in and friction reduction, and also feature a new Phosphate Coating for increased hardness, porosity, and superior adhesion qualities, doubling coating durability. This piston is 71.955mm and twin ring.

Specifications
SKU
V.4244D
Brand
Vertex
Availability
In Stock (5)
SKU
V.4244D
Brand
Vertex
Availability
In Stock (5)
Delivery5–8 business days
14-Day ReturnsHassle-free
Easy CheckoutCard friendly
Product details

FULL DESCRIPTION

Vertex Grade D Twin Ring Piston for Fuel Injected 300cc Engines

Engineered for high performance and reliability, the Vertex Twin Ring Piston is a premium replacement component designed to meet the rigorous demands of fuel injected 300cc two-stroke engines. Manufactured using advanced metallurgical techniques, this piston offers superior strength and thermal stability under extreme racing conditions.

Vertex utilizes exotic Low-Ex silicon-charged aluminium alloys, processed through sophisticated gravity casting or hydraulic forging methods. To ensure maximum durability, every piston undergoes a specialized heat treatment process that refines the internal material structure for consistent performance.

Key Features

  • Precision Engineering: Machined on state-of-the-art CNC equipment using diamond-tipped tools to achieve exact tolerances and specific surface finishes.
  • Advanced Coating Technology: Features a Molybdenum Bisulphite black coating to assist with the initial break-in period and reduce friction during operation.
  • Phosphate Coating: Incorporates a secondary phosphate coating that provides increased surface hardness and superior adhesion for the molybdenum layer, effectively doubling its durability.
  • Rigorous Quality Control: Each piston is subjected to both manual and automatic inspection processes to ensure it meets the highest manufacturing standards.
  • Twin Ring Design: Engineered to provide an excellent seal and optimal heat transfer between the piston and the cylinder wall.

By integrating technology inspired by Formula One engine development, Vertex pistons provide the endurance and efficiency required by serious riders. Whether you are performing a top-end rebuild or maintaining your engine for peak output, this Vertex piston is a reliable choice for consistent power delivery.

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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