JJD's Twin Tyres dually system from the 1980s.
Fullsize image: https://s3-us-west-1.amazonaws.com/h...s_fullsize.jpg
2:14 video by Because Racecar:
Previously:
Motorcycle with double front wheels - photos
1918 car with spring-loaded wheels due to rubber shortage - photo
Slow-motion tire explosion in safety cage - GIF
Tire vulcanizing machine - video
Machine for installing tires on rims - GIF
Michelin tire test truck - photo
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