Honda Super Cub

Honda Super Cub is a small motorcycle. In Super Cub, Koguma bought a used Super Cub, which changed her life.

The bike has a single-cylinder 4-stroke engine available various sizes, from 49cc through 124cc. In Japan, the 49cc version is classed as a moped or scooter, which carries certain restrictions, such as a legal speed limit of 30 km/hr, despite its ability to go faster. The larger engine sizes move it into the category of small motorcycle, which still is not allowed on an expressway, but can legally be ridden at the same speed as cars. Beginning in 2007, the engine came with fuel injection instead of a carburetor. In Episode 2, Reiko comments that Koguma's cub has a carburetor.

For persons of age 16 in Japan, there are three available levels of motorcycle license. A motorcycle with an engine over 400cc is classed as a heavy motorcycle, and the driver has to be 18 years old. In a driver's first year after getting their license it is illegal to ride with a passenger on the bike.
 * Moped - Engine under 50cc. Riders are not permitted to go over 30 km/h
 * Small motorcycle - Engine over 50cc but under 125cc. Same speed limit as cars, but not allowed on expressways
 * Ordinary motorcycle - Engine over 125cc but under 400cc

Koguma's Super Cub Background
Koguma purchases this scooter for 10k yen, even though the the shopowner says it has a history of killing three of its prior owners. Koguma later is told that this isn't exactly true.