Time to replace the Panaracer Fire 2.1 XC Pro's on the Hammer Head. I'm thinking Kenda Nevegal but I see they come in 2.1, 2.35, and 2.5. I assume only the 2.1 will fit in the rear, right? I'm looking for a higher volume tire to use for an upcoming trip with lots of rocky technical downhill. Planning on putting the same tire on the front. Any other recommendations? Thanks.