Forged high-compression piston kit sized at 67.00 mm (+2.00 mm over standard) with an actual 13.0:1 compression ratio. Supplied as a single-cylinder set with piston, rings, wrist pin and circlips, it is configured around a 4-stroke forged series design for performance rebuilds.

Features

• Forged 2618 aluminium construction for high strength under sustained thermal load
• High-compression crown design (13.0:1) for performance applications
• Supplied complete with ring set, wrist pin and circlips

Specifications

• Bore size: 67.00 mm (+2.00 mm over standard)
• Piston diameter: 66.95 mm
• Compression ratio: 13.0:1
• Piston series: 4-stroke forged
• Ring set: 2638XA
• Wrist pin: S532, 17 mm outer diameter × 43 mm length
• Circlips: CW17, 17 mm
• Approximate displacement (4 cylinders): 637 cc total
• Quantity in kit: one piston, one ring set, one wrist pin, two circlips

Vehicle Fitments

• Honda CBR600F2 1991–1994
• Honda CBR600F3 1995–1998
• Honda CB600F Hornet 1998–2004