7.3 would be better.
Swap the tires out, hard-cases are junk.

32C or wider tires would keep the trail from shaking you to hell after a few miles, I'd vote check out Vittoria Rando tires. Pro versions are lighter than hard-cases and either the pro or regular are a much better tire for flat protection. They roll better too.

Oh, I've not had a hard-case last more than a few hundred miles on limestone trails, they get chewed too pieces and start falling apart.