Getting your leg sucked in by the rear wheel(meat saw ) of the bike ahead of you in a corner would not be fun. It happened with the TBay ice racers quite a few years back. Studded tire removed a bit of they riders leg. Inside of the rear fender was red/ skin colored. Another day at the races. It's all about power and traction. A tight track will be about tires in the corners, a big oval will be about motor on the straights. All very cool none the less.
less is more