| MODEL | HARLEY-DAVIDSON BAJA 100 1970 - 1971 |
| Year | 1970 - 1971 |
| Engine Type | Two-stroke, single cylinder |
| Displacement / Capacity | 98 cc / 6.0 cu in |
| Bore X Stroke | 50 x 50 mm |
| Compression Ratio | 9.5:1 |
| Cooling System | — |
| Max Power | 9.4 kW / 12.6 hp @ 8000 rpm |
| Max Torque | — |
| Ignition | — |
| Induction | — |
| Start System | — |
| TRANSMISSION SPECS | |
| Lubrication | — |
| Gear Box | 5 Speed |
| Clutch | — |
| Final Drive | — |
| CHASSIS SPECS | |
| Frame | — |
| Front Suspension | — |
| Rear Suspension | — |
| Front Brakes | — |
| Rear Brakes | — |
| DIMENSION SPECS | |
| Overall Length | 1990 mm / 78.5 in |
| Overall Width | 860 mm / 34 in |
| Overall Height | — |
| Seat Height | — |
| Wheelbase | 1300 mm / 52 in |
| Ground Clearance | — |
| Dry Weight | 84 kg / 185 lbs |
| Wet Weight | — |
| WHEEL SPECS | |
| Front Tyre | 3.00-21 |
| Rear Tyre | 3.50-18 |
| FUEL SYSTEM | |
| Fuel Capacity | 9.5 Litres / 2.5 US gal |
| Fuel Consumption | — |
| Top Speed | — |
The Baja 100 was Harley-Davidson's answer to the late-1960s boom in small two-stroke trail bikes, built for it in Varese, Italy by its part-owned Aermacchi subsidiary. Its 98 cc single was a sleeved-down version of an existing Aermacchi two-stroke, mated to a five-speed box and a purpose-made frame. Factory-supported riders took class honours in the 1971 Baja 1000, but showroom bikes were criticised as tall, under-powered and roughly finished compared with the race machines.
