tech Spec
Evolution
Envisioned as a luxury streetbike in 1949, the Quattro gained chain drive and a five-speed gearbox on its way to the 1956 500cc world championship.
Rivals
Gilera 500/4, Moto Guzzi Otto Cilindri V8, Matchless G45, Norton ES2.
Tech
| Price | na |
| Engine Type | a-c inline-four |
| Valve train | DOHC, 8v |
| Displacement | 497cc |
| Bore x stroke | 53.0 x 56.4mm |
| Compression | 10.4:1 |
| Fuel system | (4) Dell'Orto 28mm carburetors |
| Clutch | Dry, multi-plate |
| Transmission | 5-speed |
| Claimed horsepower | 65 bhp @ 10,500 rpm |
| Claimed torque | na |
| Frame | Steel duplex |
| Front suspension | MV Agusta 38mm fork |
| Rear suspension | Twin Girling shocks |
| Front brake | MV Agusta 230mm 4LS drum |
| Rear brake | MV Agusta 220mm SLS drum |
| Front tire | 100/90-19 Avon Roadrunner |
| Rear tire | 100/90-19 Avon Super Venom |
| Rake/trail | 26.0°/4.5 in. |
| Seat height | na |
| Wheelbase | 59.0 in. |
| Fuel capacity | na |
| Claimed curb weight | 306 lbs. |
| Colors | Red/silver |
Verdict: 4.5 out of 5 stars.
Faster than everything else for longer than most.