i just received my Moots Mooto X RSL, which i had previously ordered--it's a titanium 29" hardtail, spec'd for XC racing (eg, an upright geometry w/ 100 mm travel on ff, fairly high head angle & seat angle)
Moots (AFAIK) only builds to-order but i know next to nothing about mtb wheels and tires so i deferred to their default spec for both
i just picked up the next bike from the dealer yesterday and the front has a 2.4" wheel; the rear a 2.2"
is this common on mtb builds? Or at least for mtb XC racing builds?
what is the reasoning behind this practice (i assume the wider wheel in front is critical)?