| MODEL | ARIEL FH 650 HUNTMASTER 1957 |
| Year | 1957 |
| Engine Type | Twin, four-stroke, OHV (BSA A10-based) |
| Displacement / Capacity | 646 cc / 39.42 cu in |
| Bore X Stroke | 70.0 x 84.0 mm / 2.8 x 3.3 in |
| Compression Ratio | 6.5:1 |
| Cooling System | Air |
| Max Power | 25.5 kW / 35 hp @ 5600 rpm |
| Max Torque | — |
| Ignition | Magneto |
| Induction | Amal carburettor |
| Start System | Kick |
| TRANSMISSION SPECS | |
| Lubrication | Dry sump, two pumps |
| Gear Box | 4-speed |
| Clutch | — |
| Final Drive | Chain |
| CHASSIS SPECS | |
| Frame | Duplex down tubes with swingarm |
| Front Suspension | Hydraulic telescopic fork |
| Rear Suspension | Dual coil springs |
| Front Brakes | Drum |
| Rear Brakes | Drum |
| DIMENSION SPECS | |
| Overall Length | 2184 mm / 86 in |
| Overall Width | 640 mm / 25.2 in |
| Overall Height | — |
| Seat Height | 787 mm / 31 in |
| Wheelbase | 1422 mm / 56 in |
| Ground Clearance | 140 mm / 5.5 in |
| Dry Weight | — |
| Wet Weight | 186 kg / 410 lb |
| WHEEL SPECS | |
| Front Tyre | 3.25-19 |
| Rear Tyre | 3.50-19 |
| FUEL SYSTEM | |
| Fuel Capacity | 15.14 Litres / 4.0 US gal |
| Fuel Consumption | 5.10 L/100 km / 46.1 mpg |
| Top Speed | 148.9 km/h / 92.5 mph |
The FH Huntmaster is Ariel's 650 cc sporting twin, built around a BSA A10 engine in a swinging-arm Ariel chassis. It offers about 35 hp, a magneto and a top speed near 150 km/h.
