With disks, sproket and racing wets with plenty of life left in them. The wheels come of a K2 but would fit k4 and k5 with some spacers (provided); I used’em on a K4 myself. Would wxpect to pay £100 + for the tyres alone. £500.00
I’ll sell for that once i’ll take the tyres off. (they were only used for 20 v. wet laps)