Jon Ødegård was an international speedway rider from Norway who built several motorcycles under the J.H.Ø marque. Most were fitted with much-modified Puch 175cc engines. Each time he built a new racer for himself the old one was sold off, and some of these became street machines.
Ødegård also built an engine for Puch mopeds which had the external appearance of a standard Puch but had modified crankshaft and crankcase which been machined to Ødegård's specifications.
Ødegård took a gold medal at the European Longtrack Championship in 1970, he won the Nordic Longtrack Championship four times and the Norwegian Longtrack Championship seven times between 1964 and 1976. In 1969 he rode with the Swindon Robins in the UK.
Sources: Norskproduserte Motorsykler; en.wikipedia.org