on flat ground due to the hub always being nearer the ground than the top of the wheel, all three “loops” have to flex and return for each revolution of the wheel, meaning it would be like going up a gentle hill all the time (work wise)? (unlike conventional suspension that will flex due to riders weight and stop regardless of revolutions.
@Michael Lau Presumably yes, since part of your energy will go into moving the hub within the wheels. But since they're springs, you'll get most of that back, so it's probably close enough to a wash to not matter much. Especially on a purely A-to-B type bike like a folder. Edison Ong April 18, 2013 06:40 AM
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Outside the pivots the bar bends back and one end is attached to each wheel, usually through one or two flexible rubber bushes.
The new company has financial backing from the RAD BioMed Accelerator group and is in collaboration with the Ziv-Av Engineering group. They are initially designing these wheels for wheelchairs, city bicycles and aircraft landing gear but the company says the technology would be used for other wheeled vehicles.
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TOMALL Scooter Rear Wheel Fixed Bolt Screw Stainless Steel Fixed Screw Kit 2 PCS for Xiaomi Mijia M365 Electric Scooter
- The suspension blocks are just over two blocks in length, making proper 1-1 alignment with the rails impossible. Their models also stick out in other places making clipping an issue.
My background in wheel performance is its circular motion( which involves the circular of the wheel, and that the hub remains in the center of the wheel) if u are rolling with an oblong wheel, then u may actually exert more effort in lifting your self with the bike rather than rolling.
@ Bob Stuart: The built-in air cylinders avoid the bouncing. The very first design in 2010 was actually with springs and, indeed too bouncy. The cylinders have a non linear suspension (exponential) that have a great dampening effect.
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It is a significant risk factor for those with spinal disorders, increasing the amount of muscle fatigue and potentially damaging connecting nerves. Vibration is also believed to have significant impact on pain, the development of pressure sores, spasticity and general discomfort. It limits the time, distance and surfaces that users will consider for manual chair use.
This if for the wheelchair bound, super fast, super cool t-shirt wearing individual. Printed on a Navy T-Shirt with white lettering.
Within 20 metres you notice how smooth the ride is, looking down and you see that its not fresh tarmac, rather it’s a country road, yet the ride gives no indication of the road surface, its just smooth – you are feeling the road rather than the grotty surface.
Loopwheels are currently available in a 20-inch size for bikes and a larger size for wheelchairs. They are working on 26- and 29-inch wheels for bicycles. They are currently available as a retrofit for Dahon or Tern foldingbikes and have a 100mm front fork for the changeover. The wheels themselves cost $462 US while a Loopwheels folding bike will set you back $1,493.
Liked what you read? Check out more articles on accessibility and technology on bespoken! Share Tweet Facebook Replies to This Discussion Permalink Reply by Rory Telfer on March 24, 2015 at 14:38