Kawasaki C2

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Kawasaki C2SS and C2TR
Manufacturer Kawasaki
Also called Road Runner
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
Transmission Chain driven 4-speed, constant mesh, rotary shift. Kick start.
Suspension Inner spring telescopic front fork, spring shock absorber and swing arm (rear)
Wheelbase 45.7 in
Dimensions L: 71.3 in
W: 20.4 in
Fuel capacity 1.7 gal

The Kawasaki C2SS 120 and C2TR 120 Roadrunner were 120 cc (7.3 cu in) Kawasaki motorcycles made from 1964 through 1969.

The C2SS was designed for the street scrambler, a road machine powered by a single cylinder, two stroke, rotary disc valve engine with displacement of 115cc. 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 could be converted into a C2TR trail machine by easily installing the Trail Kit that was supplied by the manufacturer as optional parts.

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 1969 the C2TR had 8 speeds (4 actual speeds) through a unique high/low range gearing switch rather than a rear sprocket change.

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.