One just arrived yesterday, the 50-60mm version.
I offered it up on wife’s HT either 2.35 or 2.25 Barzos – can’t remember and she’s out on it now. There was maybe just enough clearance, no idea how it handles mud, stones, bouncing around, so I didn’t leave on for her ride this morning (plus I don’t want it broken before the all-day ride I bought it for tomorrow! I read a review saying it worked fine on mtbs, I’ll see if I can find it.
Edit:
Ass Savers Win Wing Review
He’s got it quite high up, plenty of room for crap on the tyres to bounce through, it’s only the sidewalls close to the wishbone supports.
As you can see in the photos above, there’s 6-7mm of space when mounted with 2.35/2.4” tires. I think it would be better with tires smaller than 2.25” wide, but it worked fine with these. I never had any issues with tire rub or chunks of gravel causing any harm to the Wishbone or fender blade, which was certainly one of my concerns. We’ve all had a chunk of gravel get wedged in the tire’s side knobs, only to knock into the chainstays upon rotation. However, with the rotational direction and the fact that the straps act as flexible suspension for the Wishbone, I don’t see it being an issue, and I haven’t had any problems with it after several very rough dirt road and gravel rides.