| MODEL | HONDA SL 100 1970 - 1973 |
| Year | 1970 - 1973 |
| Engine Type | Four stroke, single cylinder, OHC, 2 valves |
| Displacement / Capacity | 99 cc / 6.0 cu in |
| Bore X Stroke | 55.9 x 55.9 mm |
| Compression Ratio | 9.5:1 |
| Cooling System | Air cooled |
| Max Power | 8.5 kW / 11.5 hp @ 9700 rpm |
| Max Torque | 8.5 Nm / 6.3 lb-ft @ 8000 rpm |
| Ignition | Points and condenser |
| Induction | Keihin carburettor |
| Start System | Kick |
| TRANSMISSION SPECS | |
| Lubrication | Wet sump |
| Gear Box | 5 speed |
| Clutch | Wet multiplate, manual |
| Final Drive | Chain, 428 x 110 |
| CHASSIS SPECS | |
| Frame | Full duplex cradle |
| Front Suspension | Telescopic fork |
| Rear Suspension | Steel swingarm with twin shock absorbers |
| Front Brakes | Drum |
| Rear Brakes | Drum |
| DIMENSION SPECS | |
| Overall Length | — |
| Overall Width | — |
| Overall Height | — |
| Seat Height | — |
| Wheelbase | — |
| Ground Clearance | — |
| Dry Weight | — |
| Wet Weight | — |
| WHEEL SPECS | |
| Front Tyre | — |
| Rear Tyre | — |
| FUEL SYSTEM | |
| Fuel Capacity | 7 Litres / 1.9 US gal |
| Fuel Consumption | — |
| Top Speed | 80 km/h / 50 mph |
The SL100 replaced the SL90 in 1970 as Honda's 100 cc Motosport trail bike, gaining a fifth gear and a square 99 cc overhead-cam single. It ran through four versions (K0 to K3) to 1973, changing mainly in colours, decals, seat and handlebar details; from 1972 it was badged Motosport 100 and the 1973 bike got a black frame. It was a light, simple dual-purpose machine for trail riding and short road hops.
