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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Loopwheel springs are made from a carbon composite material, carefully developed and tested to give optimum compression and lateral stability as well as strength and durability. Specially-designed connectors attach the springs to the hub and rim. The three loops in each wheel work together as a self-correcting system. This spring system between the hub and the rim of the wheel provides suspension that constantly adjusts to uneven terrain, cushioning the rider from bumps and potholes in the road. In effect, the hub floats within the rim, adjusting constantly as shocks from an uneven road hit the rim of the wheel. The spring configuration allows the torque to be transferred smoothly between the hub and the rim.
The twin-screw supercharger provides near instantaneous torque, has a maximum speed of 14,600 rpm and can regulate boost pressure up to an astounding 11.0 psi.
28 Inch Wide Wheelchair
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The first wheels are designed around the 20-inch wheels commonly used on fold-up bicycle, and Mr Pearce plans to sell bikes with the wheels fitted for £1200 in September.
28 Inch Wide Wheelchair
While entirely theoretical, Lee’s design is not without merit. Spokes and rims found on any standard bicycle already absorb shock, albeit minimally.
This looks dodgy. As per above – lateral stiffness? You have what looks like three contact points spot welded to the rim. I like my rims to stay somewhat connected to the hubs. These look like they have potential for rather catastrophic failure. Bob McNaughton on April 14th, 2013 - 11:06pm
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Why reinvent the wheel? Because sometimes it makes for a better bike. Loopwheels are a completely new type of bicycle wheel, designed with a unique built-in suspension that makes for a delightfully smooth ride. Instead of spokes, as on a traditional bicycle wheel, the Loopwheels have three loop-shaped springs that allow the wheel to absorb the vibrations and bumps most riders are accustomed to feeling.
Air Suspension Wheels: tread can either be fitted as sections of road-grooved rubber, or as bolt-on blocks for offroad use like this View gallery - 9 images
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Why Is My Back Vibrating
The story of loopwheels is one of determination, and a streak of madness. They were invented and developed by Sam Pearce, in his home in Nottinghamshire, England. By training and profession, Sam is a mechanical engineer and industrial designer. By nature, he is some one who loves making things: designing, building, doing. He loves simplicity, and products that work well. Sam is practical and hands-on. He is stubborn and doesn’t give up easily. All useful traits when you find you’ve set out on a journey to reinvent the wheel . . .
Surprised at the baseless negativity this morning. Wait, no, I’m not. Maybe it’s not the simplest suspension solution, but a cool alternative when everything else is homogenizing. bazookasean on May 20th, 2016 - 9:48am
Emerging GearFrom next-gen tech to ingenious innovation, our weekly peek at emerging products examines the sometimes cutting-edge, sometimes quirky world of gear design. Spoke Shocks: Radical MTB Suspension Concept
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According to Pearce, one of the advantages of Loopwheels is the fact that unlike a suspension fork, they can absorb shocks delivered not just from underneath or above but also from the front (as might happen when running into a curb head-on). He also admits that many other inventors have come up with designs for wheels with tangential suspension over the past hundred years or so, although he believes that today’s modern materials will allow his to work where others have proved impractical.
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.
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Loopwheels reduce the level of vibration—“road noise”—through the chair frame and up into the arms, wrists and shoulders.
Why Is My Spine Vibrating
TRX awaits your command. Create a tailored driving experience by dialing in your preferred steering feel, torque split, suspension firmness and more.
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Available Mopar® accessories, like the bed-mounted spare tire carrier and RamBar, are designed to tailor TRX to your individual style.
For the commuter, or indeed for the rider that values comfort rather than speed (but still wants to put in a lick of pace when needed) then this really does tick all the boxes.
Loopwheels give a smoother ride on bumpy, uneven ground such as woodland tracks, cobbles, grass and beach as well as smoother surfaces like paths around town.
"Andy Weston advised and fitted my mother's power chair with the lead OT at RNOH Stanmore in 2018. He has subsequently come to her nursing home to fit a different safety belt and we found him enormously helpful and patient. His knowledge of the most suitable equipment was extensive and he sourced and had the new chair delivered ahead of the exp … "
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From an exclusive switch bank, TRX adapts at your command with performance-tuned drive modes for on- and off-road excursions.
Surprised at the baseless negativity this morning. Wait, no, I’m not. Maybe it’s not the simplest suspension solution, but a cool alternative when everything else is homogenizing. bazookasean on May 20th, 2016 - 9:48am
I might eventually drop it. You have remember though, the roadsters sit atleast a half inch lower than the coupes to begin with (stock).
Another obvious choice for marked visual and performance improvement is an upgraded set of wheels. Project e-tron came from the factory with the largest possible 21-inch wheels that were light, forged and optimized for e-tron – narrow width and rated for the higher weight of electric batteries.
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I bought the car like this from the dealer. Pretty certain it is stock suspension. The Fronts are 20 x 8.5 and the backs 20 x 10. The front tires are Nankang Untra Sport NS-II 245/35ZR20 and the backs are Nankang Untra Sport NS-II 275/30ZR20. just switched to my winter setup, so i want to move my 20" Here are a couple of pics of my 2009 G37S with stock suspension and 20" wheels. I would love to lower the front some but I am fine with the back and I don't want to get into all the other issues that come up with lowering a car (rubbing, alignment issues, etc etc).
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If god wanted a different wheel he wouldn’t have made them round to begin with. Louis IV was correct in closing the Patent office….all things worth being invented…were invented by the 17th century.
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"My mobility has been hugely limited due to pain, and when I’m outdoors I’m reliant on my wheelchair. Potholes, cracks, cobbles: when you have chronic pain, you feel every tiny vibration like a knife. The Loopwheels took only a few seconds to fit and I immediately noticed a big difference. Loopwheels definitely reduce the pain of going over bumps, kerbs and cobbles . . . the addition of Loopwheels to my chair has made every trip out far more comfortable." Loopwheels Extreme The best vibration-reducing off-road wheelchair wheels.
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Set in the Nottinghamshire countryside, Loopwheels HQ is surrounded by rutted fields, forests and coarse roads – nigh-on the perfect environment to test out suspension wheels!
The Loopwheel works using three heavy duty springs instead of spokes. When the rider hits a bump, the springs compress to give a smooth ride
Originally Equipment for the Physically Challenged, EPC Wheelchairs Ltd was established in 1989 by Peter Norfolk OBE. We are a sucessful family-run business based in Perranporth, Cornwall & Farnborough, Hampshire. We are fortunate to be supported by loyal experienced, enthusiastic and knowledgeable team. We pride ourselves on sourcing good quality products at reasonable prices, and aim to supply our customers with friendly, expert knowledge and excellent service.
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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.
The only other way to get wheels to turn is either roll them freely unbound to anything, or attach them to a rotor. You can adjust the suspension settings to make them ridged, and you can use vertically oriented suspensions to prevent side wobble as if it was on rails.
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Loopwheels are an innovative approach to wheelchair suspension and shock absorption.
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