The BSA A65 Spitfire Special, also called Mk IV, is a four-stroke, parallel twin-cylinder motorcycle that was produced from 1966 to 1968. It has a capacity of 654cc and uses Amal Concentric 389/206 carburetors. The engine has a compression ratio of 9.0:1, is air-cooled, and uses dry sump lubrication. The bike has a 4-speed transmission and a multi-plate clutch with heavy-duty springs. The maximum power output is 40.0 kW / 53 hp at 7000 rpm. The frame is made of steel tubing with a double cradle and it has telescopic forks with coil spring suspension in the front and a coil spring/hydraulically damped suspension in the rear. The front and rear brakes are drum brakes with the front being 20.32 cm / 8 in. and twin leading shoe. The wheels are made of steel and have wire spokes with a front rim of WM2-19 and a rear of WM2-18. The bike has a wet weight of 185kg / 408 lbs and a fuel capacity of 18L / 4.8 US gal in Europe and 9 L / 2 US gal in the US. Its top speed is 212 km/h / 132 mph. The BSA A65 Spitfire Special is a classic motorcycle that has been reviewed positively on classicbsamotorcycles.co.uk.
Technical specifications:
Make Model: BSA A65 Spitfire Special (Mk IV)
| Year | 1966 – 68 |
|---|---|
| Engine | Four stroke, parallel twin cylinder, OHV, 2 valves per cylinder |
| Capacity | 654 cc / 39.9 cub in. |
| Bore x Stroke | 75 x 74 mm |
| Carburetors | Amal Concentric 389/206 |
| Cooling System | Air cooled |
| Compression Ratio | 9.0:1 |
| Lubrication | Dry sump |
| Engine Oil | SAE 20W/50 |
| Oil Capacity | 3 L / 5 pints / 0.79 US gal |
| Exhaust | Twin |
| Ignition | Coil, 3ET Lucas, Alternator RM19ET Lucas |
| Spark Plug | Champion N4 |
| Battery | 12V, 10 a.h., Lucas RM19 |
| Starting | Kick start |
| Max Power | 40.0 kW / 53 hp @ 7000 rpm |
| Clutch | Multi-plate with heavy duty springs |
| Transmission | 4 Speed |
| Final Drive | Chain |
| Gear Ratio | 1st 9.30 / 2nd 6.73 / 3rd 5.07 / 4th 4.58:1 |
| Frame | Steel tubing, double cradle |
| Front Suspension | Telescopic forks with coil spring – hydraulically damped |
| Rear Suspension | Coil spring/hydraulically damped |
| Front Brakes | 20.32 cm / 8 in., drum, twin leading shoe |
| Rear Brakes | 17.78 cm / 7 in., drum |
| Wheels | Steel, wire spokes |
| Front Rim | WM2-19 |
| Rear Rim | WM2-18 |
| Front Tyre | 3.25 x 19 in. |
| Rear Tyre | 4.00 x 18 in. |
| Dimensions | Length: 2165 mm / 85.3 in. Height: 1117 mm / 44.0 in. |
| Wheelbase | 1410 mm / 55.5 in. |
| Ground Clearance | 203 mm / 8.0 in. |
| Seat Height | 813 mm / 32 in. |
| Wet Weight | 185 kg / 408 lbs |
| Fuel Capacity | Europe:18 L / 4.8 US gal US: 9 L / 2 US gal |
| Top Speed | 212 km/h / 132 mph |
| Review | Classicbsamotorcycles.co.uk |
