| MODEL | HARLEY-DAVIDSON DYNA GLIDE STURGIS FXDB 1991 |
| Year | 1991 |
| Engine Type | Four stroke, 45° V-twin, Evolution, OHV, 2 valves per cylinder, rubber mounted |
| Displacement / Capacity | 1337 cc / 81.6 cu in |
| Bore X Stroke | 88.8 x 108 mm |
| Compression Ratio | 8.5:1 |
| Cooling System | Air cooled |
| Max Power | 39.3 kW / 52.8 hp @ 5000 rpm |
| Max Torque | 83.6 Nm / 61.7 lb-ft @ 3000 rpm |
| Ignition | Battery powered inductive |
| Induction | 40 mm Keihin carburettor |
| Start System | Electric |
| TRANSMISSION SPECS | |
| Lubrication | Dry sump |
| Gear Box | 5-speed |
| Clutch | — |
| Final Drive | Belt (chain primary) |
| CHASSIS SPECS | |
| Frame | Steel Dyna Glide frame, large rectangular-section backbone, cast steering head |
| Front Suspension | 39 mm telescopic fork, 175 mm travel |
| Rear Suspension | Twin shocks, adjustable spring preload |
| Front Brakes | Single disc, 1-piston caliper |
| Rear Brakes | Single disc, 1-piston caliper |
| DIMENSION SPECS | |
| Overall Length | — |
| Overall Width | — |
| Overall Height | — |
| Seat Height | 737 mm / 29 in |
| Wheelbase | — |
| Ground Clearance | — |
| Dry Weight | — |
| Wet Weight | 285 kg / 623 lbs |
| WHEEL SPECS | |
| Front Tyre | MM90-19 |
| Rear Tyre | MT90-16 |
| FUEL SYSTEM | |
| Fuel Capacity | 18.6 Litres / 4.9 US gal |
| Fuel Consumption | 6.1 L/100 km / 38.8 US mpg |
| Top Speed | 180 km/h / 112 mph |
The first Dyna-chassis Harley, a limited edition of about 1,600 planned (roughly 1,550 built) celebrating 50 years of the Sturgis rally. Its new frame had a large rectangular backbone and a two-point rubber engine mount system, and the 1340 cc Evolution engine drove through a five-speed and belt final drive. Black and orange finish, a single front disc and low, laid-back styling recalled the 1980 FXB Sturgis.
