2Bros Parts

KTM SX-F 250 2006-2012 EXC-F 250 2007-2013 79.97mm BIG BORE 280cc 13.3:1

$341.90Only 1 left

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Delivery to United States 5–8 business days

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Vertex four-stroke pistons are forged from 2618 aluminum alloy for power and performance, designed to handle high pressures in modern four-stroke engines. Vertex pistons feature a Molybdenum Disulphide (MOS2) coating on the piston skirt to aid break-in and reduce wear. Unique piston profiles and compression ratios are offered in A, B, C, and D sizes. This variation in sizing, 0.01mm, allows for a precise piston-to-cylinder fit, maximizing power and performance while reducing blow-by and oil consumption. This particular piston is a big bore, 280cc with a 13.3:1 compression ratio.

Specifications
SKU
V.3274B
Brand
Vertex
Availability
In Stock (1)
SKU
V.3274B
Brand
Vertex
Availability
In Stock (1)
Delivery5–8 business days
14-Day ReturnsHassle-free
Easy CheckoutCard friendly
Product details

FULL DESCRIPTION

Vertex Big Bore 280cc Piston Kit

Upgrade your engine performance with the Vertex Big Bore 280cc piston kit. Designed to deliver superior power and reliability, this high-performance piston is engineered to meet the demanding requirements of modern four-stroke engines. Whether you are looking to revitalize your engine or increase displacement for competitive racing, this kit provides the precision and durability needed for optimal performance.

Key Features and Benefits

  • Forged Aluminum Construction: Manufactured from premium 2618 aluminum alloy, providing exceptional strength to withstand high internal engine pressures and heat.
  • Advanced MOS2 Coating: Every piston features a Molybdenum Disulphide coating on the skirt, which significantly reduces friction, minimizes wear, and assists during the critical engine break-in process.
  • Optimized Compression: Engineered with a 13.3:1 compression ratio to maximize combustion efficiency and increase overall engine output.
  • Precision Engineering: Designed with unique piston profiles to ensure a perfect fit within the cylinder, effectively reducing blow-by and oil consumption while maintaining consistent power delivery.
  • Big Bore Performance: Specifically engineered to increase displacement to 280cc, providing a noticeable boost in torque and power across the entire RPM range.

Vertex remains a leader in aftermarket engine components, trusted by riders and mechanics for their commitment to quality and engineering excellence. This piston kit offers the perfect balance of longevity and performance for your four-stroke machine.

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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