“2.2 advantage is good in mud “
2.25″ advantage in 60a (or 70a) I find poor in the mud I’ve used them in. Dont’ clear as well as a ‘proper’ mud tyre and spin out, and lots of volume you’ve got to plough through the mud
“2.25 Crossmark R? .. Not ideal in full mud conditions but nothing that is will roll well at the trailcenter”
Agree on poor in mud, but disagree on nothing will roll well
A ‘race’ish mud tyre (ie not ‘ultimate’ish grip aka trailraker, 2.35″ swampthing etc) such as a 2.0″ (come up small) Bontrager Mud X or 2.0″ Spesh Storm (come up big) will give decent mud/wet grip/clearing and I reckon roll as well as any normal knobbly tyre. Not mega expensive either
OP, out of interest what is it about a 2.0″ Bonty Mud X or 2.0″ Spesh Storm that you’ve ruled them out?
The bonty’s I can see are small, but the Spesh blows up slightly bigger than a 2.35″ Maxxis (so smaller than a 2.25″ maxxis) or bigger/newer 2.1″ Maxxis, and as big as a 2.25″ Schwalbe