take a look at Aprilia RS125 Max Speed.

Once the bike has been de-restricted, there isn't really a lot you can do to increase your top speed and anything you do will come at a cost. The Aprilia RS 125 can out handle a lot of bikes and you should remember that before you go about trying to increase its top speed. 100mph might not be a lot to play with but if you can maintain a high speed through the twisty back roads then it suddenly becomes a lot more impressive.

As far as performance mods go, you'll get the biggest bang for your buck with a big bore kit. These aren't without their own problems though. The increases you do get will be quite small and you are looking at £400 on parts alone. You'll also have to alert your insurance company and re-register your bike to stay legal. Simply put, don't bother.

The best thing you can do is to trade off top speed for acceleration or vice versa by playing with the front and rear sprockets.

For information on what sprockets you should consider and links to more great Aprilia RS 125 articles, take a look at Aprilia RS125 Max Speed.

2010 Aprilia RS125 Sport Bike

The fairing, for example, was perfected by extensive wind tunnel testing, to guarantee great wind protection and minimum drag for maximum racetrack efficiency. The fairing, windshield and tail not only look mean and aggressive, but allow the RS 125 to reach a blistering top speed, eliminating all turbulence around the rider and allowing man and machine to become one.

The latest generation twin halogen headlight also adds to the mean look of the new RS 125, and delivers a high power light beam for enhanced visibility and safety at night. The sleek tail looks exactly like the tail of a GP racer. Thanks to the effort put into the design of the RS 125’s tail, not even the passenger seat disturbs the bike’s impeccable lines.

The crossed spoke wheels are not only lighter and more stylish, but safer and more reliable too.

2010 Aprilia RS125 Red Black Edition