2Bros Parts

KTM SX-F 250 2006-2012 EXC-F 250 2007 - 2013 80mm 276cc BIG BORE KIT

$1,126.52Only 1 left

4.4 Trustpilot 99.9% positive on eBay

Delivery to United States 5–8 business days

Spread the cost with Klarna

1

Big Bore Cylinder Kit with 80mm bore and 276cc displacement. Features a compression ratio of 13.3:1. Includes a new cast aluminum nickel silicon carbide (NSC) electroplated cylinder with a diamond honed surface for proper ring seal and oil retention. The kit also contains a Vertex forged 2618 aluminum alloy big bore piston, available in various sizes to maximize power and performance. Includes a top-end gasket kit with head, base, and exhaust gaskets, as well as O-rings, necessary for rebuilding the top end.

Specifications
SKU
CW.51002-K01
Brand
Cylinder Works
Availability
In Stock (1)
SKU
CW.51002-K01
Brand
Cylinder Works
Availability
In Stock (1)
Delivery5–8 business days
14-Day ReturnsHassle-free
Easy CheckoutCard friendly
Product details

FULL DESCRIPTION

Increase Performance with the Cylinder Works 276cc Big Bore Kit

Upgrade your engine displacement and unlock significant power gains with the Cylinder Works Big Bore Kit. This premium performance upgrade is designed to provide an affordable and reliable way to boost horsepower, delivering an exhilarating riding experience whether on the track or the trail.

Each kit features a precision-engineered big bore cylinder paired with a hand-matched Vertex piston and a comprehensive top-end gasket set, ensuring a perfect fit and optimal engine output.

Key Features and Technical Specifications

  • Increased Displacement: Boost your engine capacity to 276cc for improved torque and horsepower.
  • Precision Cylinder Construction: The cast aluminum cylinder features a nickel silicon carbide (NSC) electroplated coating. This composite provides exceptional wear resistance and superior oil retention capabilities.
  • Diamond Honed Finish: Each cylinder is diamond honed to exact bore dimensions, ensuring ideal ring seal and reduced friction.
  • Vertex Forged Piston: Pistons are forged from high-quality 2618 aluminum alloy, specifically designed to withstand the internal pressures of high-performance four-stroke engines.
  • Optimized Performance: Unique piston profiles and a 13.3:1 compression ratio work to maximize power while minimizing blow-by and oil consumption.
  • Complete Gasket Kit: Includes all essential head, base, and exhaust gaskets, along with necessary O-rings, providing everything required for a professional top-end rebuild.

By combining high-strength materials with meticulous manufacturing, the Cylinder Works Big Bore Kit offers a durable solution for riders looking to enhance their motorcycle's engine performance without compromising reliability.

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.

Trade pricing available

Buying parts for your business? Apply for a 2BrosParts trade account.

Apply for Trade
1