Anyone air down for highway driving, a little?
Yeah, I typically knock 10 pounds of pressure out of my tires for booting around the city. Bringing me to around 15 to 20 psi. Especially in this slop. Lots of loose snow makes for great traction, the icy curling sheets are slightly better too.
Gas milage really suffers though. As well as a bit of handling on the rutted Deerfoot. The heep really tends to wander when the tires have some bulge. Not to mention bad flat-spotting when she's been parked for a while.
Works great though, but not without its trade-offs.
As for trail use, I always air down, 10 psi or less per wheel. Whatever season. Makes for great traction, and a much more forgiving ride when cruising in 5th gear in low range.
As for chains, I've never used em (yet), though I could have used them a couple of winters ago. Backwards tobogganing down a hill is really not fun. If I had em, I'd put them only on the rear, and at near full pressure, otherwise the loose links can and will cause body damage. Front's if they had em, better have wide backspacing/offset; cause chains will shred the fender and mash up the frame-rail and anything that gets in their way.
That's my $0.02