2Bros Parts

Honda TRX 450ER 2006-2009 99mm Big Bore Kit

$1,170.24Only 1 left

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Delivery to United States 5–8 business days

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Cylinder Works Big Bore Kit includes a stock appearing, nickelsilicon carbide, precision honed big bore cylinder kit, all required gaskets, and a Vertex big bore piston complete with rings, pin, and circlips.

Specifications
SKU
CW.11005-K01
Brand
Cylinder Works
Availability
In Stock (1)
SKU
CW.11005-K01
Brand
Cylinder Works
Availability
In Stock (1)
Delivery5–8 business days
14-Day ReturnsHassle-free
Easy CheckoutCard friendly
Product details

FULL DESCRIPTION

Cylinder Works 99mm Big Bore Kit

Transform your engine performance with the Cylinder Works Big Bore Kit. Engineered for riders seeking a significant power upgrade, this comprehensive kit allows you to increase your displacement and maximize output without the hassle of sourcing individual components. Every piece needed for a complete top-end transformation is included in one convenient package.

The centerpiece of this kit is a precision-honed, nickel silicon carbide plated big bore cylinder. Designed to match the appearance of stock components while delivering superior durability and heat dissipation, this cylinder provides the foundation for reliable, high-performance riding.

Key Features

  • Precision Engineering: High-quality cylinder sleeve finished with nickel silicon carbide plating for long-lasting wear resistance and reduced friction.
  • Complete Assembly: Includes a premium Vertex big bore piston kit, featuring rings, wrist pin, and circlips to ensure a perfect match and optimal compression.
  • Everything Included: Comes with a full set of high-quality gaskets required for a seamless installation.
  • Direct Replacement: Designed for easy installation, maintaining a stock aesthetic while providing a noticeable increase in torque and horsepower.
  • Reliability Focused: Built to withstand the demands of high-performance riding, ensuring consistent power delivery across the entire rev range.

Whether you are rebuilding an engine or looking for a competitive edge, this big bore kit provides the performance boost and quality components required to take your machine to the next level.

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

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