Is running a 20c tyre on a 25c (319) rim on the road as stupid of an idea as I think it is?
Too much risk of exposed sidewall and damage to the rims (no pinch flat mean rims get the blunt of the impact).
Beside the obvious that is.
@edscoble started
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Is running a 20c tyre on a 25c (319) rim on the road as stupid of an idea as I think it is?