Big Bore Cylinder Kit

S&S CYCLE Big Bore Cylinder Kit

S&S CYCLE
0931-0876
910-0733
The Big Bore Cylinder Kit enhances performance with easy installation and includes all necessary components. Requires skilled assembly.
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€1,202.16
This product is currently unavailable.
  Delivery policy

In stock items will be shipped within 1-3 days.

  Return policy

You can return the products within 14 days for a full refund, check our returns policy.

Big Bore Cylinder Kit

Upgrade your performance with the Big Bore Cylinder Kit, designed to yield excellent results with stock cylinder heads. This kit offers an easy installation process, allowing you to swap the cylinders without the need to bore or split existing cases (unless otherwise noted).

The cylinders are constructed from premium aluminum castings featuring cast-in iron liners, ensuring durability and reliability. Each kit includes everything you need for a successful installation: cylinders, pistons, rings, and gaskets (head, base, and exhaust).

All components are proudly made in the U.S.A. Please note that this project requires a skilled technician. It is the responsibility of the person assembling the parts to check all clearances and assembly specifications to ensure optimal performance.

: 0931-0876
In Stock

Data sheet

Riding Style
Street
Units
Kit
Color/Finish
Black Granite
Highlighted Fins
Style
Big Bore
Bore Size Imperial
4.250"
Stroke Length Imperial
4-1/2"
Compression Ratio Imperial
11.0:1
Displacement
128"

Shipping Policy

Shipping Areas:

We ship to:

  • Spain (Peninsula and Balearic Islands)
  • European Union countries

We do not ship to the Canary Islands, Ceuta, or Melilla.

Shipping Times:

  • Spain (Peninsula): 2–4 business days
  • Balearic Islands: 3–5 business days
  • EU countries: 3–7 business days depending on destination

Shipping Costs:

Shipping costs are calculated automatically at checkout based on destination and weight.

Free shipping may be offered for qualifying orders, as specified on our website.

Order Processing:

Orders are processed within 1–2 business days after payment confirmation. Orders placed on weekends or public holidays are processed the next business day.

Delivery Issues:

If your order is delayed or arrives damaged, you must notify us within 14 calendar days. We will investigate the issue and offer a resolution in accordance with applicable consumer protection laws.

Return & Withdrawal Policy

Right of Withdrawal:

In accordance with Royal Legislative Decree 1/2007 (Ley de Defensa de los Consumidores y Usuarios), you have the right to withdraw from your purchase within 14 calendar days from the date of receipt, without giving any reason.

To exercise this right, contact us via email or through our website, providing your order number and contact details.

Return Conditions:

  • Products must be unused, in original condition and packaging.
  • Return shipping costs are the responsibility of the customer, unless the product is defective or sent in error.
  • Refunds will be issued within 14 days of receiving the returned goods.

Items Excluded from Return:

  • Custom or personalized products
  • Sealed items that were unsealed after delivery and are unsuitable for return due to hygiene (e.g. cosmetics, personal care)
  • Digital content delivered electronically once download or streaming has begun

If you want to return an item, please contact us first to give you detailed instructions.