Here another one. This one moves from 10 spd 11-28 to 11-42. Seems to be closer to your wish. https://www.youtube.com/watch?v=vvDvZViRFN8
@bujalarab started
London Fixed Gear and Single-Speed is a community of predominantly fixed gear and single-speed cyclists in and around London, UK.
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Here another one. This one moves from 10 spd 11-28 to 11-42. Seems to be closer to your wish.
https://www.youtube.com/watch?v=vvDvZViRFN8