S&s Cycle Replacement Flywheel Assembly For Big Bore Engines
S&s Cycle Replacement Flywheel Assembly For Big Bore Engines
Available in stock (5)
-
Estimated delivery: Feb 03 - Feb 07
About this product
About this product
Upgrade your engine's performance and reliability with the S&S Cycle Replacement Flywheel Assembly. Designed for 96", 103", 106" big bore and 110", 117" engines using stock or S&S pistons, this flywheel assembly offers superior strength and precision. Made in the USA, it's the perfect choice for enthusiasts and professionals seeking enhanced engine capabilities.
Description
The S&S Cycle Replacement Flywheel Assembly is meticulously crafted to withstand the rigors of high-performance engines. Featuring premium-quality S&S heavy-duty 7.659" connecting rods with full-width wrist pin ends, this assembly is dynamically balanced and trued to less than 0.0005" runout on pinion and sprocket shaft bearing surfaces. This precise balancing ensures smooth operation at higher RPMs and full compatibility with gear drive cams. CNC machined from heat-treated, closed-die steel forgings, these flywheels boast 114% greater strength compared to late-style stock steel flywheels. The 1.671" diameter connecting rod crankpin is securely pressed into the flywheels, with pinion and sprocket shafts forged as an integral part of the flywheel, enhancing overall durability and performance. Upgrade your engine with S&S Cycle for unmatched quality and reliability.
Features & highlights
- Designed for 96", 103", 106" big bore and 110", 117" engines with stock or S&S pistons, ensuring broad compatibility.
- Features premium-quality S&S® heavy-duty 7.659" connecting rods with full width wrist pin ends for enhanced durability.
- Dynamically balanced assembly ensures smooth, high-RPM operation and reduces vibration.
- Trued to less than 0.0005" runout, providing exceptional precision and reliability.
- CNC machined from heat-treated, closed-die steel forgings, offering 114% greater strength than stock flywheels.
- Fully compatible with gear drive cams, allowing for advanced performance upgrades.
- Made in the USA, guaranteeing top-notch quality and craftsmanship.
Technical specifications
- Brand: S&S Cycle
- Product Name: Flywheel Assembly
- Engine Type: "A" motor
- Material: 4140 Steel
- Stroke Length: 4-3/8"
- Connecting Rod Length: 7.659"
- Crankpin Diameter: 1.671"
- Units: Each
- Features: without Sprocket Bearing Race
Important to know
This flywheel assembly is designed for specific engine configurations. Ensure compatibility with your engine's bore and piston type before installation. Professional installation is highly recommended to ensure proper fit and function.
Shipping & Return
Shipping & Return
Free shipping to GLS parcel shop parcel box for purchases over DKK 1,000.
GLS home delivery costs DKK 59.
We do our best to ship your order as quickly as possible. All orders are generally packed within 24 hours on weekdays.
There is a 14-day return policy. Read more
Parts Denmark Info
Parts Denmark Info
Parts Denmark is a new webshop based in Denmark. We have a physical location you can visit (No showroom yet), and we have both email and phone support in our opening hours.
Our company info is:
Parts Denmark ApS
VAT: DK45974758
Dam Holme 11
3660 Stenløse, Denmark
hello@partsdenmark.com
+45 222 333 29
Best regards,
William Svendsen & Martin Høyer (Owners)
Specifications
S&S CYCLE
320-0351
Flywheel Assembly
4-3/8"
"A" motor
4140 Steel
without Sprocket Bearing Race
Each


Who is behind Parts Denmark
Martin and William are the duo behind Parts Denmark — an unlikely but awesome combo of a tech-savvy young IT wizard and a seasoned motorcycle guru who’s seen (and fixed) it all. Together, we’ve built a team with big ambitions, plenty of passion, and a shared mission to create great things — side-by-side with you.

