S3 Piston Kit for Select Beta, GasGas, Rieju and Sherco 300cc Bikes (1996 - 2025) - 71.95mm - (Size B)
S3 71.95mm Piston Kit (Size B) offers race-level reliability and precision fit for 300cc two-stroke Beta, GasGas, Rieju, and Sherco engines. Includes piston, rings, pin, and clips.
| Brand: S3 |
| Piston Size: B |
| Hardparts: RIEJU |
Internal Reference:
S3-PI-963-B
Product Information
The S3 Piston Kit is engineered for riders who demand precision and reliability from their 2-stroke engines. Constructed from a top-grade aluminum-silicium alloy, each piston is either cast or forged for durability and performance. The molybdenum disulfide protective layer ensures reduced friction and smoother movement within the cylinder, while nitrided steel rings improve sealing and wear resistance.
Designed to keep your engine responsive and reliable, this piston kit helps minimize vibration and allows your motor to rev faster and cleaner—ideal for off-road, enduro, or racing conditions.
Kit Includes
- 1 × Piston (Size B – Ø 71.95mm)
- 2 × Rings
- 1 × Wrist Pin
- 2 × Snap Clips
Key Features & Benefits
- Lightweight and durable alloy construction
- Reduced vibration and friction
- Faster engine response and improved rev build-up
- Nitrided steel rings for long-lasting performance
- Precision fit and finish for reliable sealing
Fitment
BETA
- RR 300 (2018–2021)
- RR RACE 300 (2018–2021)
- RR RACING 300 (2018–2021)
- XTRAINER 300 (2018–2021)
GASGAS
- EC 300 (1996–2018)
- MC 300 (1996–2018)
RIEJU
- MR 300 (2019–Current)
- MR PRO 300 (2019–Current)
- MR RACING 300 (2019–Current)
SHERCO
- SE 300 (2012–2015)
- SE-FACTORY 300 (2012–2015)
- SE-R-RACING 300 (2012–2015)
- SE-R-SIX DAYS 300 (2012–2015)
