PISTON KIT 70-77 BULTACO 250 74.0mm 2.0mm OVER VINTCO

This VintCo piston kit is designed for 1970-1977 Bultaco 250cc vintage 2-stroke motorcycles and provides a complete replacement assembly including the piston, rings, pin and clips. It is manufactured using modern materials and production methods for OEM-style fit and performance, with solid skirts as supplied; some Bultaco model years used different cut-outs, which may be machined by an experienced machinist or mechanic where required. A wrist pin bearing is available separately, and additional size options are also available.

Features

• Complete piston kit for Bultaco 250cc models
• Includes piston, rings, pin and clips
• Suitable for vintage 2-stroke motorcycle rebuilds
• Minor modification may be needed for specific 250cc models
• Solid skirt design
• Some year-specific cut-outs may be machined if required
• Wrist pin bearing sold separately
• Additional size options available
• MoS2 coated for break-in

Specifications

• VintCo Part Number: PSB01-2.0
• Piston diameter: 74.0 mm
• Oversize: +2.0 mm
• Measured size: 73.94 mm
• Clearance: 0.06 mm
• Forged piston
• Made in Germany

Vehicle Fitments

• 1970 Bultaco 250
• 1971 Bultaco 250
• 1972 Bultaco 250
• 1973 Bultaco 250
• 1974 Bultaco 250
• 1975 Bultaco 250
• 1976 Bultaco 250
• 1977 Bultaco 250