Wossner forged piston kit with a 57.75mm bore and 57.69mm diameter, designed for Yamaha TDR125 and TZR125R models. Manufactured in Germany, this piston offers superior strength and design, ensuring optimal heat transfer to cylinder walls. Its elliptical design provides a uniform bearing surface under heat expansion, reducing localized pressure and evenly distributing thrust loads to prevent piston collapse.

Features

• Forged construction for superior strength


• Optimized heat transfer for efficient combustion


• Elliptical design for uniform load distribution


• Manufactured in Germany

Specifications

• Bore: 57.75mm


• Diameter: 57.69mm


• Display (cm³): 124


• Stroke (mm): 60.80


• Clearance (mm): 0.06


• Wossner Compression Ratio: 2-Stroke


• OEM Compression Ratio: 2-Stroke


• Dome Volume (cm³): Flat


• Compression Height (mm): 29.90

Cross-Reference OEM Part Numbers

• Wossner Piston Yamaha TZR125R (PN# 8006D175)


• Lock P/N: CW16


• Pin P/N: WP036


• Ring Set P/N: RSB5775 x 2

Vehicle Fitments

• Yamaha TDR125 (1992-1998)


• Yamaha TZR125R (1992-1998)