Wossner WO-4014-DA Forged Piston Kit is a Premium Series forged RR-S 390 Enduro
Wossner WO-4014-DA Premium Series Forged Piston Kit for Beta RR-S 390 Enduro (2016–2023) – 87.96 mm
The Wossner WO-4014-DA Forged Piston Kit is a Premium Series forged piston engineered for the Beta RR-S 390 Enduro (2016–2023). Manufactured from premium forged aluminium, it delivers exceptional strength, reduced reciprocating weight and reliable performance for demanding enduro and off-road applications. Featuring an 87.96 mm piston diameter for an 88.00 mm standard cylinder bore, a 63.4 mm stroke, 22.5 mm compression height and a 12.7:1 Wossner compression ratio, it is an excellent choice for high-quality engine rebuilds. :contentReference[oaicite:0]{index=0}
Precision CNC machining ensures excellent piston-to-cylinder fit and dependable ring sealing, while Wossner's forged construction provides outstanding durability under extreme operating conditions. The kit uses the TPR88.00/2 ring set and includes an 18 mm WP072-SP wrist pin with CW18 retaining clips. :contentReference[oaicite:1]{index=1}
- Premium Series forged piston kit
- Suitable for Beta RR-S 390 Enduro (2016–2023)
- 88.00 mm standard cylinder bore
- 87.96 mm finished piston diameter
- 12.7:1 Wossner compression ratio
- 12.48:1 OEM compression ratio
- 63.4 mm stroke compatibility
- 22.5 mm compression height
- TPR88.00/2 ring set
- 18 mm WP072-SP wrist pin
- CW18 retaining clips
- Includes piston, piston rings, wrist pin and retaining clips
Important: Always confirm your motorcycle make, model, year and cylinder measurements before ordering. Standard and graded pistons should always be selected according to the measured cylinder bore to ensure the correct piston-to-cylinder clearance.
Notice: Product images may differ from the actual product. Images are provided for illustration purposes only and may show a representative item rather than the exact part supplied.