PISTON KIT Aprilia RS125 “C”, FORGED WOSSNER KIT 8253DC, SINGLE RING

This Wossner piston kit features a 54.02mm bore with a measured diameter of 53.97mm and is engineered for Aprilia RS125 motorcycles produced from 1985 to 2012. Designed for performance and durability, the single-ring forged piston ensures efficient heat transfer and reliability under demanding conditions.

Features

• Forged piston construction for high strength and durability

• Optimised design for efficient heat transfer from combustion chamber to cylinder walls

• Elliptical shape enhances bearing surface uniformity under heat expansion

• Distributes thrust loads evenly to prevent piston collapse

• Manufactured in Germany

Specifications

• Bore: 54.02mm

• Diameter: 53.97mm

• Display: 125 cm³

• Stroke: 54.50 mm

• Clearance: 0.05 mm

• Compression Ratio (Wossner): 2-stroke

• Compression Ratio (OEM): 2-stroke

• Compression Height: 29.00 mm

• Ring Type: Single Ring

• Clips P/N: CW15

• Pin P/N: WP032

• Ring Set P/N: RSB5400

Cross-Reference OEM Part Numbers

• Part No. 56-W9913.00C.WO

• Wossner Piston 8253DC

Vehicle Fitments

• Aprilia RS125 1985–2012

• 1985 Aprilia AF1 Futura

• 1985 Aprilia AF1 Replica

• 1985 Aprilia Caponord Rally

• 1985 Aprilia Europe Base

• 1985 Aprilia Mini RX

• 1985 Aprilia Pegaso Base

• 1985 Aprilia Red Rose Base

• 1985 Aprilia RS 125

• 1985 Aprilia Syntesi Base

• 1985 Aprilia Tuareg 250

• 1986 Aprilia AF1 Base