Fitment:
Honda CB400 CB-1 VTEC 400 I II III IV CB400SF NC31 NC36 NC39
Honda CBR400 CBR23 NC23 CBR29 NC29
Honda VFR400 VFR 21 24 30 NC30 RVF35 NC35

Bore Size: 56 mm (+100)

Package Included:
4 X Piston Kit with Rings Pin and Clips