GBC Mudshark tires are what i have found to be amazing. have side-bite, and forward traction is unreal. i can ride wheelies in 3rd gear in 15-20 inches of snow. The IRS really offers alot more traction tho.
Check and make sure your coolant mixture is strong enough to not freeze down to like -30F. Not sure how cold it gets there, but in Northern, WI, we see -25 once in awhile, but usually -20ish.
2009 OUTLAW 525 IRS.
41mm Carb with Transition Ring, Ceramic Coated Header, HMF Competition Series Pipe, Custom Full Intake, Polaris Bob Oil Cooler Adapter with Custom Cooler, Rath +3 A-arms, ALBA Anit-Vibe kit, 15 Tooth sprocket, Pure Polaris Nerfs, Pure Polaris Handguards, Pure Polaris Front Bumper, Fox Float Evol X Shocks (front), Fox Podium X Shocks (rear), PRM 6 pack rack, PRM Rear A-Arm Guards, Pit Posse Shifter, Daytona Digital Tach, G-Force Wheel Spacers, IRazr Radials, Thumper Racing crankcase vent, LM1 A/F Meter. 48.6 WHP, 37.53 Torque.