Precisely that. There's not enough space between the brake caliper, the derailleur, and the mudguard to drop the wheel out. Disk brake, so can't wiggle it - it has to go in in a straight line. The clutch is great, but doesn't solve this problem. I think it's a design flaw. Or maybe there's an easy way to loosen the mudguard that I haven't discovered yet.what do you mean you need to loosen the RD to take the rear wheel off
Crankset is an Easton EA90 47x32. The really steep rindō strain my knees at 32/34; I'd prefer to spin rather than grind.