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.
Make Model
Cagiva Roadster 521
Number produced 329 between 1993 and 1999
Year1993
EngineAir cooled, Single cylinder, two strokeCapacity
125Bore x Stroke 56 x 50.6 mm
Compression Ratio 11.7:1Induction
Ignition / StartingElectronic CDI
Max Power15.5 hp @ 7500 rpm
Max Torque18 Nm @ 9000 rpm
Transmission / Drive6 Speed / chain
Front SuspensionHydraulic telescopic fork
Rear SuspensionSingle-shock Soft-Damp
Front BrakesSingle 260mm disc
Rear Brakes160mm drum
Front Tyre3,25-19
Rear Tyre140/90-15
Dry-Weight125 kg
Fuel Capacity11 Litres
Consumption average22.0 km/lit
Braking 60 - 0 / 100 - 013.3 m / 39.9 m
Standing ΒΌ Mile 18.6 sec / 104.0 km/h