I’ve been updating the concept drawing of the finished mountain wheelchair so that it is now to scale and working out how some of the parts are going to fit together. One of the obvious changes I’ve made is the addition of fatbike wheels:

Mountain Wheelchair Concept Drawing

Trying out different wheel options in the drawing, these fatbike wheels are certainly the most aesthetically pleasing. For comparison, I’ve included some of the lesser options below:

Mountain bike wheels

Mountain bike wheels with Disk

Small Wheels