I intend on sticking a set of rigids in my 03 Tomac hardtail.Its an 80mm fork frame,Im thinking of a to c of 460mm?Are there any other variables to consider?
Note the rigid fork length should be less than the suspension fork, because you generally run 20% of sag. I.e. To replace a 100mm travel fork of 470mm, I'd go for a 440mm rigid.
I would in general agree with the last poster, but in truth there's no point in having this discussion without saying what length stem you're going to use and what kind of steering response you prefer.