PISTON KIT 70-77 BULTACO 250 73.5mm 1.5mm OVER VINTCO PSB01-1.5

VintCo PSB01-1.5 is an oversize piston kit for 1970-1977 Bultaco 250cc motorcycles. Intended for vintage 2-stroke engine service, the kit includes the piston, rings, pin and clips, with the wrist pin bearing available separately. It is produced using modern materials and manufacturing methods for OEM-style fit and performance, and OEM part numbers can be cross-checked to confirm fitment. This piston uses a solid-skirt design; some Bultaco model years used different cut-outs, so machining or minor modification may be required for certain 250cc models.

Features

• Replacement piston kit for vintage Bultaco 250cc 2-stroke engines
• Includes piston, rings, pin and clips
• Wrist pin bearing sold separately
• Minor modification may be required for specific 250cc models
• Solid skirt design
• Different year-specific skirt cut-outs can be machined by an experienced machinist or mechanic

Specifications

• VintCo Part Number: PSB01-1.5
• Piston size: 73.5 mm
• Oversize: +1.5 mm
• Stated piston measurement: 73.44 mm
• Stated clearance: 0.06 mm
• Construction: Forged piston
• Coating: MoS2 coated for running-in
• Country of manufacture: 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