Moto Guzzi Bialbero 500
or
Moto Guzzi 500 S

Moteur monocylindre horizontal soupapes opposees, cylindree 498 cm3, puissance 18 ch a 4000 tr.mn, transmission par chaine, boite manuelle, a trois rapports, embrayage multidisque a sec, cadre double berceau tubulaire, platines moteur en tole acier, suspension fourche a parallelogramme a l'avant, arriere rigide, poids 130 kg, vitesse 100 km.h 

Horizontal one-cylinder engine valves opposees, cylinder 498 cc, power 18 CH at 4000 tpm, drive chains, limps manual, has three reports/ratios, multidisk clutch has dry, tallies double tubular cradle, platinums engine in tole steel, suspension fork has parallelogramme has front, the arriere rigid, weight 130 kg, speed 100 km.h

Tecs and specs Bialbero 350 and 500 cc