I was using a rear one on my old 29er for a couple of winters, I may have left it on all last summer, too :roll:. I managed to break a fixing lug off it last winter, it stayed on the bike till I got a Solaris in June. Didn’t bother swapping it onto that. 8)
I’ve recently bought a new rear one for the winterised SS Bizango. It works a treat.
I looked at one for the front, but figured that as it’s one of those that fastens between the fork arch and the tyre, I’d have mud scraping it, as I did with the Muckynutz. YMMV. I got an SKS Shockboard instead. Well, I did say winterised. :P