Triple collet groove for small bore engines.
The stock intake valves for the 948/998/1098cc cylinder heads are 1.06" or 1.15", if you want better performance you need bigger valves. Our special 1.218" intake valves will fit all small bore heads and only available with triple collet grooves. Our race valves are produced in EN214N steel, stellite tipped and PLASMA treated to eradicate wear from unleaded petrol.3.44" long