tend to disagree with that . on the 12 xrs was dragging and i was bottoming all the time . put in stiffer springs and ran 2 inches above the snow , rarely bottomed and cooling was fine . The iron dog is much stiffer and flap stays above snow and might bottom once or twice a ride when landing hard . digital guage shows 45- 50 degrees celcius with flap above the snow or 4-4.5 bars . That is with studded tracks which will make more snow dust on hard pack."PIT GRUNT" just nailed it, it needs to touch the ground to help with cooling. I ride a 2016 XRS and i weight 165 all wet, and it touches the ground with the fuel caddy in the back.