Interesting to see this as there is a similar add-on for wheelchairs here in Japan called Jinriki.
https://nocamels.com/2022/05/paratrek-wheelchair-hiking/
nocamels.com
Israel's Paratrek Designed A Wheelchair To Make Hiking 'Accessible For All'
A unique wheelchair developed for rough terrain gave riders who weren't able to walk the chance to join an annual high school hiking trip.
