Every sled I have owned, as well as my dad, have always had Hot Grips brand handlebar heaters installed and they work awesome. I've taken plenty of rides in below -30 C and have never had my hands get cold. They're a super hard and durable rubber that lasts forever, but i think they'd be a bit harsh for the vibrations of a quad. I've never had a problem with any of them, once installed they've worked flawless for years without any special care. Once you've ridden a sled in the cold with heated hand grips, you'll never go back!