The Replica is the only Skorpion with different wheels (. . All Soorts, Sports Cups, and Tours share the same wheels (except for color.
The sport cup is only difference with the 3 piece lower fairing and lack of center stand. Frame has lugs for the fairing supports. Fairings are almost the same between the sport and replica except for the left side where the kick stand slot is different. There is reportedly a different instrument panel on late Sports Cups but I've never seen on even after visiting the factory in 2011. The rear cowl cover was an option on the Sport and came standard on the Sport Cup.
Doug in Nj.