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.
Specification edit
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