A set of 185/65 R15 Lancer 9 tires. Rational and steady (pensioner) rubber in the form of an automobile. Anchored spikes. Saved me from a head-on accident when I had to brake suddenly on dry pavement, but not from getting hit in the face by the people who were trying to catch up with Velcro. Taking the risk of going with a new driver, I believe I came out ahead. What you need to worry less about the two to five meters of braking distance you're not getting.