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The Roadster 521 is a 125cc motorcycle made by the Italian motorcycle firm, Cagiva in the 1990s.

One of the fastest accelerating 125cc motorcycles of its time, the Roadster 521 is known to have a top speed of 80 mph restricted and an estimated 100 mph+ un-restricted. Achieving approximately 70 miles per gallon, it is relatively economical for a 2-stroke motorcycle. In 2000, production of the Cagiva Roadster ended. In 2008, Harley-Davidson bought MV Agusta Motor, the parent company of Cagiva, thereby regaining some control of its old Aermacchi factory.

Specification

Make Model

Cagiva Roadster 521

Number produced 329 between 1993 and 1999

Year 1993

Engine Air cooled, Single cylinder, two stroke Capacity

125 Bore x Stroke 56 x 50.6 mm

Compression Ratio 11.7:1 Induction

Ignition / Starting Electronic CDI

Max Power 15.5 hp @ 7500 rpm

Max Torque 18 Nm @ 9000 rpm

Transmission / Drive 6 Speed / chain

Front Suspension Hydraulic telescopic fork

Rear Suspension Single-shock Soft-Damp

Front Brakes Single 260mm disc

Rear Brakes 160mm drum

Front Tyre 3,25-19

Rear Tyre 140/90-15

Dry-Weight 125 kg

Fuel Capacity 11 Litres

Consumption average 22.0 km/lit

Braking 60 - 0 / 100 - 0 13.3 m / 39.9 m

Standing ¼ Mile 18.6 sec / 104.0 km/h

• Cagiva motorcycles
• Two-stroke motorcycles
• Single-cylinder motorcycles
• Standard motorcycles