Part No. 56-W9764+000 (oro2u.com)
HONDA CBR400 55.00mm NC23,
High performance aluminium piston features:
Chromium aluminum alloy meets or exceeds OEM specifications,
CNC-machine to extremely close tolerances

Pistons supplied in a kit package that includes rings, wrist pins and circlips.
HONDA CBR400 NC23 Specification Bore : 55mm Pin Diameter : 14mm Pin Length: 39mm

Size : STD Weight : 133g
Cross reference numbers ONLY. 13224-MV4-STD