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Wheelchair design has evolved in recent years but users can still find it demanding to propel themselves. That can be especially difficult and uncomfortable on rough surfaces such as cobbles and paving stones.
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But after a few rocky encounters, he decided there had to be a better way to maneuver over rough terrain in a wheelchair. So he did what anyone with experience in mechanics would do – he made a new wheel.
(My comments are "my opinion" only, please do not take it negatively. I did not see this in person, so I COULD BE WRONG. Comments are base on my mechanical behavior experience) francm April 18, 2013 07:42 AM
1.0 out of 5 stars its as if it lost its ability to screw in its socket (it looks more like an issue with the socket and not the actual ... Hopefully this is an isolated case but my bike just broke after less than 4-5 hours of use spread across 3 days (normal park trails, no crazy mountain climbing). The right pedal just fell off while ridding and it won’t go back in, its as if it lost its ability to screw in its socket (it looks more like an issue with the socket and not the actual pedal).
I don’t see how they could maintain torsional stiffness under braking… And that falls into the “bad” category. Mindless on April 15th, 2013 - 12:58am Gillis on April 15th, 2013 - 1:41am
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4: Up hill- this is where i think you may encounter difficulty. since its a climb. assume that you follow case 1, then you should be at least fine here. you have to focus on the ground distance to hub must always be greater than radius of wheel parallel to inclination of climb. (because imagine case 1, if your hub is no longer at the center, you will be lifting your self. in an inclined position. more difficult than lifting in a plane.
'I suddenly wondered why the wheel couldn't have its own suspension, and quickly drew the idea down - and then did nothing about it for two years.
However, this design pushes past the norms of mountain bike suspension — and design — and has us excited to see what could arise.
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Given no e-trons yet wear a 22-inch wheel from the factory, we didn’t have a recommended factory fitment tire. However, we noticed Vossen’s own upgraded e-tron (see: Academic e-tron, p.36 Q3_2019) used 285/35R22. As it happened, this was the exact fitment that was already on these former Q7 fitted wheels. Given the 285/35R22 Toyo Proxes S/T tires were properly weight rated and that Vossen had experienced no problems, we decided to give them a try.
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The rim won’t bend or suffer from any deformation. Just the hub will move relatively to it. Ryan on April 15th, 2013 - 9:32am Nash on April 15th, 2013 - 11:00am ant1 on April 15th, 2013 - 1:29pm g on April 15th, 2013 - 11:36pm i'd like to see some comparisons on April 23rd, 2013 - 1:15pm
In 1990 I designed this wheel with suspension and damping incorporated.I am glad to see this on the market. In those years I had no luck finding some business to develop and sell it. cruzraylson on May 5th, 2019 - 9:19pm
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