Originally Posted by Lindarets

From the BB to about 6in down the chainstay is actually a single hollow-cast titanium piece that has the internal cable routing built in- it's the thing folks get most excited about when they see a bare frame in person.

Here in the desert where we run into a lot of sand and washboard but not a ton of mud I'm running 27.5x2.1in Vittoria Mezcals (53mm measured) on mine for rough days. 700s with 43mm tires will happily fit on a 1x, 38-40s with a front derailleur. Need to get my post count over ten to show a pic, but there's a recent photo on the Lindarets Instagram feed showing 2.2s which were a little tight and violate the 6mm all-around ISO clearance requirement.

Unless you get into Monstercross (29x2) territory, a 75mm drop might be too much- the 700x50 rated Evil only has an 80mm drop. it would make for a too-low BB on 30s and take away from the bike's versatility. As it stands now you can throw 28s or 30s on and join friends for a paved century without things getting weird.