Does it fit your motorcycle?
Look it up by licence plate or VIN, or choose your model.
Confirmed compatible · Position:
This part doesn't fit your bike. See parts that fit
Fits most motorcycles
Not model-specific. Check dimensions and specifications in the description before ordering.
Chosen by size, not by model
The size is printed on the tyre sidewall, e.g. 120/70 ZR17, and in your registration document.
Checking fitment…
Fitment check unavailable
S&S Cycle Big Bore Piston Kit - 3.937" Bore - Standard - 920-0101
Product info
- Item number
- 09104524
- Manufacturer number
- 920-0101
- Position
Upgrade your engine's performance with the S&S Cycle 98" Big Bore Forged Piston Kit. This kit allows you to increase your engine's displacement and power, delivering improved throttle response and overall performance. Experience the thrill of enhanced power and torque with this premium piston kit.
Description
The S&S Cycle Big Bore Forged Piston Kit is designed for enthusiasts seeking a significant boost in engine performance. By increasing the bore size to 3.937", this kit elevates the displacement to 98", resulting in a substantial gain in power and torque. The forged piston material ensures exceptional strength and durability, withstanding the increased pressures and temperatures of a high-performance engine. These pistons are designed for compatibility with stock rods that have tapered wristpin ends. To install, stock cylinders may be bored to accommodate the larger piston. Achieve optimal clearance by boring cylinders to the nominal diameter +/- 0.0005". The 10.3:1 compression ratio further contributes to the engine's efficiency and power output. Upgrade your ride with S&S Cycle and experience the difference!
Features & highlights
- Unleash your engine's potential with a significant displacement increase to 98".
- Forged piston construction provides superior strength and durability for demanding applications.
- Achieve optimal performance with a 10.3:1 compression ratio.
- Designed for compatibility with stock rods that have tapered wristpin ends.
- Experience improved throttle response and overall engine performance.
Technical specifications
- Brand: S&S Cycle
- Displacement: 98"
- Bore Size: 3.937"
- Stroke Length: 4"
- Compression Ratio: 10.3:1
- Piston Material: Forged
Important to know
This kit requires boring of the stock cylinders to the nominal diameter +/- 0.0005" for correct piston clearance. Professional installation is recommended to ensure proper fitment and performance.
- Brand
- S&S CYCLE
- Vendor part number
- 920-0101
- Product name
- Piston Kit
- Bore size
- 3,937"
- Compression ratio
- 10.3:1
- Displacement
- 98"
- Piston material
- Forged
- Stroke length
- 4"
- Bore oversize
- Standard
- Units
- Kit
Free shipping to a GLS parcel shop or parcel box on orders over €200.
We ship your order as quickly as we can. Orders are usually packed within 24 hours on weekdays.
You have a 14-day right of return. Read more
4.8 out of 5 on TrustpilotRead our reviews →
Certified e-mærket web shop
