My mountain bike is getting to the point where it needs a lot of work to get it back in shape for next winter. Seeing as its quite old with a low end 7 speed derailleur and ineffective noisy cantilever brakes, I'm looking to build something new. I'd like to have disc brakes and a gear hub to better handle snow and slop.
Does anyone had experience with an 8 speed hub (Alfine 8 or SA X-RK8) in -25C (-13F) or colder temperatures? Or would I be better off with the much more expensive Alfine 11 that uses an oil bath instead of grease?
I park indoors during the winter, would the big temperature swings be more detrimental to a hub than traditional gears?