I've run both, 4s are slightly stiffer and have slightly more grip, have run 5's for years now and really happy with them, had a set fitted at the weekend. Comfortable, loads of grip in wet and dry. Also depends if you're running 19's or 18's
Quote from: flipflops on 20 November 2025, 09:22I've run both, 4s are slightly stiffer and have slightly more grip, have run 5's for years now and really happy with them, had a set fitted at the weekend. Comfortable, loads of grip in wet and dry. Also depends if you're running 19's or 18'sI'm running 19's, thank you.