Not the cheapest or lightest but I mounted a spare set of Replica wheels to my Sport this spring and I've put 1,000 miles since mounting them. Rear is a straight bolt-on and the front uses a EBC 320mm rotor (Ducati/Yamaha as Bill J. has writen several times), no spedo drive (but you could use the stock unit if needed), 10 mm caliper offset, and equal sized axle spacers.
As some of you know I purchased the spare wheels and a rolling Replica from Mike B. in PA last spring.
Pictures in the DROY album
Replica exhaust is temp. only and will be switched to the Replica when complete.
Doug in NJ