Aprilia RS 125 Max Speed?

The Aprilia RS 125 max speed depends on a few things. Whether or not your bike has been de-restricted is going to make the biggest difference as a de-restricted bike gets more than twice the power of the learner-legal model. In addition to the bike's power output, the rider's weight is a big factor and your choice of sprockets and performance modifications will also have a part to play in your top speed.

De-restricting your bike is the fastest, cheapest and easiest way to increase your top speed. A restricted bike gets around 70mph and de-restricted you'll be looking at about 100mph. This is only legal if you have passed your test though and you have to inform your insurance company if you want to stay legal.

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.

This article was written by John of Aprilie RS125 Tuning. Aprilie RS125 Tuning offer guides and articles on tuning, maintenance and modification for owners and enthusiasts of this 2 stroke racer.