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What tyre width? For clincher, what rim width? Any formula which ignores the actual width won't be that useful.
Emyr-
What tyre width? For clincher, what rim width? Any formula which ignores the actual width won't be that useful.
Hah yeah Jon. such a CX newb.
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What tyre width? For clincher, what rim width? Any formula which ignores the actual width won't be that useful.
As I said, it gives a good point of reference from which to start from, which seems to correspond well with my experience with 33mm tyres and rims with a 19mm internal width. There tends to be a fair amount of uncontrollable variables in cross, the formula might get a bit complicated if you took everything into account.
Howard
Jon.
Helen Wyman's formula is a good place to start:
Tubeless will be somewhere between clincher and tubular. Those guidelines would suggest that if you want to run 25psi you want to invest in a tubular wheelset.
It's also worth noting that there is a certain skill and finesse to riding a tyre at a low-pressure, you can't expect to bash into everything and get away with it.