
S&S CYCLE Flywheel Assembly
In stock items will be shipped within 1-3 days.
You can return the products within 14 days for a full refund, check our returns policy.
We accept many payment methods

In stock items will be shipped within 1-3 days.
You can return the products within 14 days for a full refund, check our returns policy.
Introducing the Flywheel Assembly, crafted from high-strength forged steel, tailored for both stock and high-performance custom applications. This assembly features a specially keyed 6° large diameter tapered sprocket shaft, which offers an increased contact area for enhanced strength. The standard S&S tapered crankpin and pinion shaft ensure ease of service. With an 8-1/2" diameter and options for 4-1/4" or 4-5/8" stroke, this kit comes fully assembled, trued, and balanced to stock Harley-Davidson 80" or 96" pistons. Each kit includes the flywheel, crankpin, and connecting rods, all proudly made in the U.S.A.
We ship to:
We do not ship to the Canary Islands, Ceuta, or Melilla.
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.
Orders are processed within 1–2 business days after payment confirmation. Orders placed on weekends or public holidays are processed the next business day.
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.
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.
If you want to return an item, please contact us first to give you detailed instructions.