PISTON KIT BULTACO TS250 73.50, WOSSNER 8291D150

This Wossner forged piston kit with a 73.50mm nominal bore (actual 73.44mm) is designed for the Bultaco TS250 from 1970. Engineered for two-stroke performance, the piston ensures optimal heat transfer, minimised friction, and long-term durability in demanding conditions.

Features

• Forged construction for maximum strength and reliability

• Elliptical piston profile enhances heat distribution and reduces stress points

• Manufactured to tight tolerances for consistent performance

• Made in Germany with high-precision engineering

Specifications

• Bore Size: 73.50mm (actual 73.44mm)

• Stroke: 60.00 mm

• Clearance: 0.06 mm

• Wossner Compression Ratio: 2 stroke

• OEM Compression Ratio: 2 stroke

• Compression Height: 29.00 mm

• Lock Part Number: CW16

• Pin Part Number: WP027

• Ring Set Part Number: RSB7350

Vehicle Fitments

• Bultaco TS250 1970