I played with the idea using steel springs in wagon wheels for a Ring of Fire series fanfic (I highly recommend the books if you like time travel stories) but I am not convinced that loopwheels are a better solution than a springy seat post. Michael Lau April 18, 2013 02:48 AM Frank van Schie April 18, 2013 06:31 AM
- Suspension systems, by their very nature, allow movement. This is bad on something that needs to be solid. When the gantry is holding something, I don't want the arms to flex, bend, pivot, or do any of the things a suspension would do.

Like many Audi models before it, the e-tron is fitted with a height adjustable air suspension. For those seeking to lower the car, this amounts largely to a software change. In most cases of an air suspended Audi, the aftermarket usually provides “piggyback” modules that adjust the suspension downward. Given the relative newness and untraditional nature of the e-tron, we weren’t aware of any options yet to be had.
Generally, only very high-end wheelchairs have shock absorption built in, necessitating wheelchair-accessible entrances to buildings. “It’s difficult and painful to use a wheelchair to cross the street, with the chair’s rider feeling the strong impact of a chair going off the sidewalk and onto a curb,” said Barel. “With a SoftWheel-equipped chair, a wheelchair user can cross streets or go down steps without feeling the impact.”