Honda Juno: innovative M-series scooters

The Honda Juno was a scooter produced in two different versions: the K series (1954) and the M series (1962). The K series comprised the K, KA and KB models, while the M series introduced a new approach to scooter technology. The Juno M80 was a 125cc and the M85 was 170cc and was presented in November 1961. This M-series was distinguished from the K-series by its horizontal twin engine instead of the previously used enclosed fan-cooled engine. In addition, the body was built with conventional steel monocoque instead of FRP panels over a tubular frame.

A notable innovation from the M80/M85 was the clutchless hydraulic-mechanical transmission, a development of the Badalini-type which would later form the basis for the famous Hondamatic transmissions used in Honda's motorbikes. The M85 was essentially an improved version of the M80, with a larger engine introduced midway through production. The exclusive transmission, boxer engine with hydraulic tappets, electric starter motor and petrol pump made the Juno M85 about 30% more expensive than a Fuji Rabbit. Juno scooters were not exported to Europe.

Despite its advanced technology and unique features, production of the Honda Juno ended after only 5,880 units in 1963. However, the model impressed the scooter world with its innovative technologies and the progressive approach that characterises Honda.