I don't know the terrain of Idaho trails, but being a Can-AM, I would take a spare belt as well and know how to change it. The can-am stock clutching will burn up a belt in no time if you are in a bad bind. I have a Polaris that has a little better reputation when it comes to belts/clutches, but I still carry a spare in my pack at all times, and I can change it out in under 20 minutes.
Also, bring a plug kit and small air compressor, FAK, duct tape, bailing wire, headlamp (for working on bike at night), spare fuses/relays, oil, recovery straps/winch, jumper cables, phone charger, and basic survival items (water, fire, food, etc.). I mounted ammo cans to my bed that I keep all that stuff in as well as an overhead organizer. I also keep a waterproof marine bag with pullovers and rain ponchos, gloves, goggles, watch caps, etc. The weather seems to always change when riding. You should get you a pelican box for your phone, gps, locator.