Wheel valve stem replacement

[claudioggs]

Hi,

I want to replace the rubber rear valve stem for an aluminium (or brass) one, in my Forza 300 NSS300A.
The original (rubber) part is 42753-KWF-901 VALVE, RIM made by TRITON www.tritonvalves.com
I'm not sure about the aftermark model, TR-412 or TR-415 ???
What's the rim valve hole size?

Thanks