PISTON KIT 70-77 BULTACO 250 73.0mm 1.0mm OVER VINTCO PSB01-1.0

This VintCo piston kit is designed for 1970-1977 Bultaco 250cc vintage 2-stroke motorcycles and provides a 73.0 mm, +1.0 mm oversize piston assembly for engine rebuilds. The kit includes the piston, rings, pin and clips, and uses modern manufacturing methods for OEM-equivalent fit and performance. It features a solid skirt design, with certain year-specific cut-outs able to be machined by an experienced machinist or mechanic where required.

Features

• Complete piston kit including piston, rings, pin and clips
• Suitable for 1970-1977 Bultaco 250cc models
• Minor modification may be required for some specific 250cc models
• Wrist pin bearing sold separately
• Solid skirt design
• Certain year-specific skirt cut-outs can be machined by an experienced machinist or mechanic if required
• Additional size options available
• Made in Germany

Specifications

• VintCo Part Number: PSB01-1.0
• Bore size: 73.0 mm
• Oversize: +1.0 mm
• Piston size: 72.94 mm
• Clearance: 0.06 mm
• Construction: Forged
• Coating: MoS2 break-in coating

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