VALVE EXHAUST CRF450R 13-16, 30-31616 KIBBLEWHITE, BLACK DIAMOND

Part No. 65-5001.EX.WK (phoenixmotos.com)
HONDA CRF450R 2013 - 2016,
Kibblewhite Precision Black Diamond Valve 30-31616 EXHAUST Standard. Black Nitroneg Stems.
Head Diameter 31.00mm / 1.220 inc.

Stem Diameter 4.97mm / 0.1957 inc.
Tulip 20 degrees,
OL 80.65mm / 3.175 inc.
Must use KPMI Lightweight Valve Spring Kits when installing Black Diamond VALVES.