This Wossner forged piston kit, part number 8285DA, features a 47.90mm standard bore and is designed for TM 85 models from 2008 to 2013. Manufactured in Germany, this piston is engineered for two-stroke engines, offering optimal strength, efficient heat transfer, and uniform load distribution. Its elliptical design helps prevent piston collapse under high-performance conditions.

Features

• Forged construction for strength and reliability


• Elliptical design for even expansion and load distribution


• Engineered for efficient heat transfer in two-stroke engines


• Made in Germany


• Direct OEM replacement


• Easy to install; professional installation recommended if unsure

Specifications

• Bore Size: 47.90mm (Standard)


• Displacement: 85cm³


• Stroke: 47.00mm


• Clearance: 0.05mm


• Compression Ratio: 2-stroke


• Dome Volume: Not specified


• Compression Height: 24.00mm

Cross-Reference OEM Part Numbers

• CW13 (Lock)


• WP124 (Pin)


• RSB4800 (Ring Set)


• P2068 (Rod)

Vehicle Fitments

• TM 85 (2008–2013)