PISTON KIT Aprilia RS125 “B”, FORGED WOSSNER KIT 8253DB, SINGLE RING

This Wossner piston kit features a 54.01mm bore and is designed with a 53.96mm diameter for high-performance applications. Engineered for optimal combustion chamber heat transfer and manufactured in Germany, this single-ring piston kit is suitable for select Aprilia RS125 models from 1985 to 2012.

Features

• Forged construction for superior strength and performance

• Elliptical design ensures uniform bearing surface during thermal expansion

• Enhances heat transfer from combustion chamber to cylinder walls

• Helps prevent piston collapse by evenly distributing thrust loads

• Manufactured in Germany

Specifications

• Bore: 54.01mm

• Diameter: 53.96mm

• 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-W9913.00B.WO

• Wossner Piston 8253DB

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