currently I'm running 205/60R 13's, on Weller 8-spokes (Capri 2.8 injection size?).... road style tread, ....unshakeable grip in ALL weathers, (except ice/snow, of course)..... smooth ride with 10psi in fronts and 25psi in rears, I did have 185/70 13's, on it when I bought it, a Mud+Snow tread by 'Kingpin', excellent grip again, but 'slideable', under control, and had to take care in the wet. I have a set of 'knobbly' Mud+Snow 155/12's to go on a set of old Hillman Imp wheels, to use for greenlaning etc, not tried them yet. My engine is a stage 1 tuned 1275cc on a 1.5" SU, and a 2.95:1 final drive, acceleration leaves most cars and bikes behind from the lights and in the twisty bits, top speed is about 92mph, on a long straight, this will probably increase when I fit a windscreen.......