Aprilia RSV 250
Encyclopedia
The Aprilia RSV 250 is a race motorcycle
Motorcycle
A motorcycle is a single-track, two-wheeled motor vehicle. Motorcycles vary considerably depending on the task for which they are designed, such as long distance travel, navigating congested urban traffic, cruising, sport and racing, or off-road conditions.Motorcycles are one of the most...

 manufactured by Aprilia
Aprilia
Aprilia is an Italian motorcycle company, one of the seven marques owned by Piaggio, the world's fourth largest motorcycle manufacturer.Aprilia started as a scooter manufacturer, but has more recently come to be known for its race-winning sportbikes...

 to race in the Grand Prix motorcycle World Championship
Grand Prix motorcycle racing
Road Racing World Championship Grand Prix is the premier championship of motorcycle road racing currently divided into three distinct classes: 125cc, Moto2 and MotoGP. The 125cc class uses a two-stroke engine while Moto2 and MotoGP use four-stroke engines. In 2010 the 250cc two-stroke was replaced...

. It was first debuted in ; in its history it underwent several modifications and upgrades, which brought it to its most recent incarnation (the RSA 250). Since its inception, the bike won ten World Championships (one as Gilera, which uses rebranded Aprilia bikes) making it one of the most successful racing bikes of its category.

1991-2007: RSV and RSW

From 1991 to 2007 the bike was used in two different configurations: first the original RSV, then the RSW, a new version of the RSV. Despite being an outdated bike, the RSW version still races as a customer bike with some upgrades from the new RSA, under the RSW 250 LE name.

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 has always been one-disc carbon steel, initially at 184mm, then from 1996 at 190mm.

2007-present: RSA

In 2007 the bike was made available in a new version, which was amended the acronym RSA. It is characterized by many different details than the previous model, including the revised intake system and the new disposition of the gear unit and of thermal groups. Also, the measures of the frame changed to be able to use a longer swingarm, and obtain benefits both in acceleration and traction. Another novelty is the use of three accelerometers to get more data for the management of the power of motion in situations of low adhesion in order to speed up the development of Aprilia RSV 4
Aprilia RSV 4
The Aprilia RSV4 is a super bike manufactured by Aprilia. The RSV4 is Aprilia’s flagship model. Aprilia offers two models of the bike: the RSV4 Factory and RSV4 R.Production of the motorcycle began in 2008....

 which will enter the Superbike World Championship in 2009.

The new engine is more powerful and with a wider operational period, but requires either having to stay at least at 6,000 rpm to work properly, and at 13,500 rpm in order to generate the maximum power.

The RSA (and the "evolution" version of the RSW) are used not only by Aprilia, but also by Gilera
Gilera
Gilera is an Italian motorcycle manufacturer founded in Arcore in 1909 by Giuseppe Gilera. In 1969 the company was purchased by Piaggio, which now holds six marques and is the world's fourth largest motorcycle manufacturer.-History:...

 and Derbi
Derbi
Derbi is a brand of motorcycles, scooters, and recreational ATVs produced by Nacional Motor S.A.U., a Spanish subsidiary of Piaggio & Co...

 (rebranded as such), since all three brands belong to the Piaggio
Piaggio
Piaggio based in Pontedera, Italy encompasses seven brands of scooters, motorcycles and compact commercial vehicles. As the fourth largest producer of scooters and motorcycles in the world, Piaggio produces more than 600,000 vehicles annually, with five research and development centers, more than...

group.
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