Wheel valves

[andycaca]

gooooood morning everyone
I am thinking about having my 20" FE wheels refurbished (repolished and lacquered) and i would like to replace the black tyre valves with something that blends in better.

having had a look online yesterday, there are a few different diameters of valve that you can buy. i even saw some rather fetching hand grenade style valve caps (that i wont be buying!)

does anyone know what the correct tyre valve diameter is for the FE 20" wheels? I guess TR414 is an industry standard size, but like all standards there is more than one!
TR418 is another size that fits 11.5mm holes.
TR414 is 11.3mm


aargh! please help