You might think that you can only find lightweight wheels, radial calipers, an aluminium frame and swingarm, and an under-seat exhaust on a big bike. But you would be wrong. Because these are the specifications of the Aprilia RS 50, the undisputed top dog in the world of 50 cc supersport motorcycles. The Aprilia RS 50 is a genuine sports motorcycle, and comes packed with the sort of technology normally found only on a GP racer. Its eye-catching, racing lines and determined, aggressive shape tell you that the Aprilia RS 50 knows no compromises. This 50 cc supersport is made to thrill and has all the performance needed to do so. In terms of style, the RS 50 is clearly and unashamedly inspired by the flagship of the Aprilia family, the RSV 1000 R, the twin that beat Japanese four cylinder racers to win the 2006 Master Bike trophy. This same thirst for victory is found in the RS 50, together with technology developed for the world-beating Aprilia 125 GP. No wonder the RS 50 is the machine that all other 50 cc bikes have to beat.

Engine: Single cylinder two stroke

    Fuel: Dell’Orto PHVA - Ø14

    Bore x Stroke: 39,86 x 40 mm

   Total displacement: 49cc

   Compression ratio: 11,5 :1

   Maximum power at the crank: Electronic C.D.I.

   Maximum torque at the crank: Electric

   Ignition: Elettronica C.D.I.

   Starting: Elettrico

   Exhaust: Euro 2

   Lubrication: Automatic mixer

   Gear box: 6 speed. Ratios: 1st 11/34; 2nd 15/30; 3rd 18/27; 4th 20/24; 5th 22/23; 6th 23/22

   Clutch: Multi-plate

   Primary drive: Gears. Ratio: 21/78

   Final drive: Chain. Ratio: 14/53

   Frame: Aluminium twin beam frame with extruded profiles and internal reinforcement

   Front suspension: Hydraulic action telescopic fork

   Rear suspension: Hydraulic progressive shock absorber

   Brakes: Front: Radial caliper with two 28 mm opposed pistons; 300 mm stainless steel disc; aeronautical braided brake hose.       Rear: 180 mm stainless steel disc; caliper with two 25 mm opposed pistons; aeronautical braided brake hose.