What size valve stem is best for a HED3 and RENN disc?

60mm too big?

I’m sure that the Renn takes a standard length valve stem, a 60 is too long, and I’m pretty I think that the H3 is the same.

60mm is too big for the Renn

Borderline for the HED3. I’ve used a long one but I’m thinking it is a 45 or something like that. (Continential tube)

I use a short valve in both.

jaretj

I used the standard length stems. With a Topeak SmartHead pump you don’t need a crack pipe adapter for either wheel (at least on ours).

I use a 45 on my HED. disc

I race that exact set up and run the standard 36mm valve, you can still use one of those microflate CO2 inflators if you flat as well.

~kweel~
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Ditto here.