Rigid non-foldable design with adjustable rear sports rims and very sturdy front wheel casters, which come in many different colours, so you can really make this wheelchair to a spec of your choice.
Source of Wheelchair:
This wheelchair is very light and using it is a joy! The sturdy design mentioned above allows me to train 3-5 miles, 4-5 times a week. I had it professionally set up to my weight and build, but have adjusted the angle of the rear wheels so that I can travel faster when training.
Overall, it’s a great sports wheelchair and I am very happy with it, but if I were to change anything I would opt for better front castors.