Barkbusters Hand Guards
I finally ordered these from Revzilla after a 5 month 'out of stock' wait. Installation took all of 30 minutes, and it looks solidly built. I rode for 2 hours afterwards and everything still holds tight. So far I can say that my hands weren't as cold, I was wearing my summer gloves and it was 50F outside. normally I would be wearing my winter gloves and after 1 hour hands would be cold so I'd stop riding at that point.
These are barkbusters Storm model, with 1" clamp (universal fit).