The Aprilia Leonardo ST/SP 150 is a 2003 motorcycle with a four-stroke, horizontal single cylinder, OHC, 4 valves engine and a capacity of 150.95 cc / 9.2 cu in. It has a compression ratio of 12.5:1 and is liquid cooled. The motorcycle is lubricated by a wet crankcase, forced circulation with lobe pump and has an electronic ignition system. It starts with electric power from a 12V, 12Ah battery. The transmission clutch is dry automatic centrifugal and has an automatic transmission system. The final drive is a v-belt. It has a front single beam with double superimposed rear cradle in high yield point tubular steel frame. The front suspension is a hydraulic telescopic fork with advanced wheel pin, and the rear suspension is an engine with function of oscillating fork attached to the frame, which is supported by silent-blocks. The rear suspension has two hydraulic shock absorbers with progressive elasticity that are pre-load adjustable to 5 positions. The motorcycle has a front single ~A220 mm disc with 2 piston caliper ~A35 mm and a rear single ~A190 mm disc with 2 piston caliper ~A30 mm for brakes. The wheels are made of light alloy with five tangential spokes. The front wheel has a 90 mm / 3.5 in travel, while the rear wheel has a 90 mm / 3.5 in travel.
Technical specifications:
Make Model: Aprilia Leonardo ST/SP 150
| Year | 2003 |
|---|---|
| Engine | Four stroke, horizontal single cylinder, OHC, 4 valves |
| Capacity | 150.95 cc / 9.2 cu in |
| Bore x Stroke | 62 x 50 mm |
| Compression Ratio | 12.5:1 |
| Cooling System | Liquid cooled |
| Lubrication | Wet crankcase, forced circulation with lobe pump |
| Induction | Tei Kei 4UC carburetor |
| Ignition | Electronic |
| Starting | Electric |
| Battery | 12V, 12Ah |
| Transmission Clutch | Dry automatic centrifugal |
| Transmission | Automatic |
| Final Drive | V-belt |
| Frame | Front single beam with double superimposed rear cradle in high yield point tubular steel |
| Front Suspension | Hydraulic telescopic fork with advanced wheel pin, ~A35 mm sleeves, 90mm wheel travel, |
| Front Wheel Travel | 90 mm / 3.5 in |
| Rear Suspension | Engine with function of oscillating fork, attached to frame with double rod supported by silent-blocks; two hydraulic shock absorbers with progressive elasticity, pre-load adjustable to 5 positions |
| Rear Suspension | 90 mm / 3.5 in |
| Front Brakes | Single ~A220 mm disc, 2 piston caliper ~A35 mm |
| Rear Brakes | Single ~A190 mm disc, 2 piston caliper ~A30 mm |
| Wheels | Light alloy with five tangential spokes |
