VALVE EXHAUST ROTAX 500/600, KIBBLEWHITE 91-9407

Part No. 65-489.EX (Off Road Only Ltd.)
EXHAUST Black Diamond Valves for Rotax 500/600
Kibblewhite # 91-9407 ,
Head Diameter 30.00mm / 1.181 inc.
Stem Diameter 7.00mm / 0.2745 inc.

Tulip 29 degrees,
OL 92.96mm / 3.660 inc.
All KPMI Black Diamond stainless steel valves are impregnated by a special German process to a depth of .002, with a surface build up of .0002. This Black Diamond process improves wear properties, reduces friction, and

provides resistance to corrosion and wear that is superior to chrome and nickel electrolysis plating. Each valve is designed using Finite Element Analysis software, and profiles are tested on our computerized flow bench. Black Diamond Valves are light, strong, one piece forgings with profiles that provide excellent flow characteristics.
NOTE: Kibblewhite advise to use Kibblewhite valve spring Kit?s with Kibblewhite valves. Use Part no 65-7800 (Springs