The Aprilia RSV 250 was a race motorcycle manufactured by Aprilia to compete in the Grand Prix motorcycle World Championship until a change of rules ended the engine-class in 2010. From its debut in 1991 it underwent several modifications and upgrades, which culminated in the last version, the RSA 250. Since its inception, the bike won ten World Championships (one as Gilera, using rebranded Aprilia bikes) making it one of the most successful racing bikes of its category.
From 1991 to 2007 the bike was used in two different configurations: first the original RSV 250, then the RSW 250, a new version of the RSV used by factory teams and riders. Another version named RSW 250 LE was raced by semi-works teams while privateer riders usually raced the RSV 250 kit production racer.
Initially the front braking system was available either with 273mm carbon discs or in 300mm carbon steel, then from 1994 onwards the only version used was the double carbon disc, either with 255mm or 273mm length. The rear braking system was one-disc carbon steel, initially at 184mm, then from 1996 at 190mm.
