Ernst Henne bought a BMW R37, took it apart, thew most of the bits away. Then built one of the most successful record breaking motorcycles ever built. 76 world records with a bike built in a backyard shed on tires made 100 years ago

https://silodrome.com/ernst-henne-supercharged-bmw/

https://www.facebook.com/photo/?fbid=10222956896131086&set=a.1617402035143