| Manufacturer | Kawasaki |
|---|---|
| Parent company | Kawasaki Heavy Industries |
| Production | 1964-1969 |
| Successor | G4TR Trail Boss |
| Class | Street and trail |
| Engine | Air-cooled 100cc, single cylinder, two stroke, rotary disc valve |
| Power | 13 hp (estimated) |
| Transmission | Chain driven 4-speed. Kick start. |
| Suspension | Inner spring telescopic front fork, spring shock absorber and swing arm (rear) |
The C2SS 120 and C2TR 120 Roadrunner were 120 cc (7.3 cu in) Kawasaki motorcycles made from 1964 through 1969.
The C2SS was an off-road and road machine powered by a single cylinder, two stroke, rotary disc valve engine with displacement of 120cc producing 13+ hp. It was street legal having headlight, taillight, and license plate bracket. It had chrome fenders front and rear, a crossbar on the handlebars, universal tires, an upswept right side chrome exhaust system, and apparent good ground clearance. The bike was available in either red, blue, or silver with the fuel tank having rubber knee grips.
In 1968 the C2SS was renamed the C2TR apparently indicating an off road capability. It had a new style fuel tank design without rubber knee grips, a contrasting "Kawasaki" decal covering the entire side of the tank, a raised front fender, a rear rack for small amounts of cargo, and 4-speed transmission with high and low gearing via 2 rear sprockets changed manually.
In 1970, the C2TR was replaced by the smaller 100cc Kawasaki G4TR Trail Boss with 10 speeds (5 actual speeds) through a unique high/low range gearing switch rather than sprocket change.