Aprilia RS 125 2009

Specifications

Engine: liquid cooled, single cylinder two stroke. Aluminium cylinder with nikasil coated liner. Read valve intake. Separate lubrication.
Displacement: 124.8 cc.
Compression ratio: 12.5:1.

Carburettor: Dell'Orto VHST 28.

Ignition: electronic CDI ignition.
Starting: electric.
Alternator: 12 v - 180 w.
Lubrication: separate mixing with variable displacement, volumetric pump.

Gearbox: 6 speed. 1st 10/30 (0.33) 2nd 14/29 (0.48) 3rd 17/27 (0.63) 4th 19/25 (0.76) 5th 21/24 (0.87) 6th 22/23 (0.67)
Primary: gearbox: 63/19 (3.31).
Final drive: chain: 17/40 (2.35).
Clutch: multi-plate in oil bath.

Frame: sloping twin-spar frame in thin wall box section cast aluminium, with reinforcement cross-ribbing.
Front suspension: upside down hydraulic fork, Ø 40 mm. Wheel travel 120 mm.
Rear suspension: swingarm with asymmetric members in thin wall box-section cast aluminium. Hydraulic monoshock with adjustable spring preload. Wheel travel 120 mm.

Brakes: Front: floating Ø 320 mm single disc. Radial caliper with four different diameter pistons, Ø 32 mm - Ø 27 mm. Rear: Ø 220 mm disc. Caliper with two Ø 30 mm pistons.

Wheels: aluminium alloy. Front 3.00 x 17"; rear 4,00 x 17".
Tyres: tubeless radial. Front 110/70 17"; rear 150/60 17".

Dimensions: overall length 1,955 mm. Overall width (at handlebars) 720 mm. Overall height (at windshield) 1,100 mm. Seat height 805 mm. Wheelbase 1,345 mm

Fuel Tank: 14 litres (3.5 litre reserve).

Dry weight: 128 kg.

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