I wonder if the wheel is more suited to wheelchairs because they are pushed at the rim, rather than turned from the hub (as in a bicycle or car). The whole mech

I wonder if the wheel is more suited to wheelchairs because they are pushed at the rim, rather than turned from the hub (as in a bicycle or car). The whole mechanic whereby the hub moves eccentrically relative to the rim when the springs compress seems likely to create all kinds of rolling resistances if the wheel is being turned from the hub - or even if it is being pushed along undriven by a load at the hub. But the unusual rim-driven mode of wheelchairs maybe is the sweetspot for this kind of thing? In particular, it seems that by compressing the springs in particular directions, torques on the wheels will create linear forces on the load - and vice versa - which might be helpful for things like getting a wheelchair up a curb, or over a bump.