Racing

Despite being a relatively small company by global motorcycling standards, Aprilia is very active in motorcycle racing. It contests many formulae, including the FIM 125 cc World Championship, the FIM 250cc World Championship, the now-defunct FIM 500cc World Championship, and from 2002-2004 the FIM MotoGP World Championship.

Aprilia Racing saw varying successes. They were extremely successful in the smaller displacement categories, winning numerous races & championships in the 125 cc Grand Prix and 250 cc Grand Prix classes. However, their 500 cc Grand Prix bike was less competitive, and their MotoGP effort - dubbed the RS3 - was technically advanced but difficult to ride and performed poorly in the championship. The RS3 did, however, feature many advanced technologies either not seen or only being seen now in other MotoGP bikes - technologies including fly by wire throttle and pneumatic valve actuation systems.

Aprilia also feature in the off-road racing world, with their 450cc V-Twin motocrosser producing respectable results (including race wins) in both off-road (Motocross) and on-road (Supermoto) categories.

The company is also notable for choosing somewhat atypical engine configurations. For example, they progressed with development of a V-Twin 500 cc Grand Prix bike when other teams were moving to V-Four configurations for what some believed was better & more usable power outputs. Aprilia continued this trend, taking advantage of lighter minimum weights with the introduction of their RS3 MotoGP bike - featuring three cylinders in an Inline triple layout, the bike had the least number of cylinders on the Grand Prix paddock. Yamaha had gone ahead with an inline four layout, whilst Suzuki and Ducati went for (differently-designed) V-Four layouts. Honda took the idea even further, producing the championship-winning RC211V, powered by a V5 cylinder engine.

source: http://en.wikipedia.org