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The monstrous 25-foot-tall Caterpillar 797F mining truck with its 13-foot-tall standard pneumatic tires
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It may work fine but high volume tyres can do a very similar job while being simpler lighter and cheaper… Speshy on May 20th, 2016 - 3:38pm Ventruck. on May 20th, 2016 - 4:20pm
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“Selective suspension is the key to the mechanism because constant suspension creates loss of energy, making pushing more strenuous. Only when encountering an object does the suspension system activate, making the inside of the wheel, the hub, move and absorb most of the shock instead of the wheelchair user’s body,” she said.
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You realise in the mining truck example if their estimate of current tyre prices is out by a factor of nearly 3 (as you suggest 38k v 110k) then the whole financial justification falls apart ;) Harmen van Kamp February 2, 2018 12:30 PM
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Let’s put as much weight in the wheels as we can! I would just love to have to accelerate all of that weight over and over again in stop-and-go city traffic. Woof! Talk about energy savings! Cheese on May 20th, 2016 - 9:53am Rapha on May 20th, 2016 - 10:03am José Galdino da Silva on May 26th, 2021 - 6:17pm
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In the garage: Mazda 5, Dodge Neon George Kennedy is a senior writer for WheelsTV in Acton, which produces video reviews for Yahoo, MSN, and other auto websites. Select a month February 2014 January 2014 September 2013 August 2013 April 2013 February 2013 January 2013 November 2012 October 2012 September 2012 August 2012 July 2012
It is curious as to why they put the valve stem in the middle of a loop and not between. Ham-planet on April 15th, 2013 - 3:06am
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'But as soon as you ride,on a gravel road, it feels like velvet - there is no noise from the road, and it is exactly like riding a normal bike.
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REDLIRO Kids/Adults Scooter with Rear Break, Adjustable Handlebars, Big Wheels, Shock Absorption, Double Suspension - Folding Sport Kick Scooters for Teens Boys
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Without a suspension system, the car’s wheels would hit a bump and move up and down perpendicular to the road surface. This vertical energy would be transferred to the car’s frame, which would pull the wheels away from the road before gravity takes over and slams the car down. The suspension system must be finely tuned using a combination of springs and shock absorbers to reduce these effects for a comfortable and smooth ride.
A dead axle - a rigid beam - is now used at the front on vans and trucks only. Some front-wheel-drive cars have a dead rear axle. A double-wishbone suspension. Wishbones are fitted at their outer ends to the top and bottom of the steering swivel member. The two forks of each wishbone extend inward to pivot on the frame. A tie rod - a steadying bar - is connected between the frame and the lower wishbone.
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These air shocks are tuneable to give you whatever level of tire deflection you choose, from super-firm to softer and squishier than a regular deflated tire can handle. Likewise, you can design in whatever degree of lateral flex suits your application, and even whatever level of torque flex you'd like, which allows the wheel to flex a little on the axle before it turns. This allows it to act as a soft torque coupler and gives a touch more traction in very difficult circumstances before the wheel spins, as well as slightly isolating the drive train from damaging torque forces in the rough stuff.
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Kerbs are less of an obstacle with Loopwheels. Loopwheels reduce jolting, soften the impact of landing, and so can help manage discomfort.
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Folding design makes the scooter ideal for travel or storage.Built to handle the bumps our Kids scooter is guaranteed to last for years of enjoyment.
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Don’t blink. With eight extra inches of overall width, massive 35-inch tires and a menacing stance, TRX asserts itself as the most muscular truck to ever leave our factory.
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Final pricing hasn’t been set, but it looks like the standard wheelset should run about $2000 when they are available sometime later this year. In each of the wheels they use tech called Adaptive Rigidity that seems to be an optimized suspension tune geared to “absorb the bumps that matter and stay rigid over the ones that don’t”. How that is achieved isn’t entirely clear, but is certainly a unique take on suspending a bike. notRapha on May 20th, 2016 - 8:06am Matt on May 20th, 2016 - 8:36am Greg on May 20th, 2016 - 8:44am
The Loopwheel system uses springs instead of spokes, giving the wheel built in suspension.
Rim and Wheel Works has a proprietary process that can straighten a number of wheel issues, from a "center bend" in which the wheel has actually twisted from impact, to TIG welding wheels that have cracked, then straightening the wheels after they've been welded. For wheels that have experienced slight damage, Rim and Wheel Works can repair them for between $110 to $135 for wheels up to 19 inches, and rising upward from there as the wheel gets larger.
I'm looking to buy Enkei RPF1's. I am undecided if I should go with the 17 or 18 inch size for stock suspension. I am driving a coupe and have always felt the RPF1 visually looks 2 sizes smaller than they actually are, but I don't want to install coilovers yet - maybe in a few years, but not now. First Name Jay Joined Mar 18, 2018 Messages 9 Reaction score 3 Location Idaho Car(s) 2016 Honda Civic
i will have pics shortly, havn't put everything on permanantly yet, waiting a couple more weeks til spring. i have the wheels & suspension sitting in my house staring at me everyday, it's painful. but if you open this link, you will see 19x8 +40 lowered 1.5", just for reference. and honestly, i'm afraid to post pics on this site with the way people pick things apart, but i probably will anyway-give me a few weeks!!
But some damage simply can't be repaired. The replacement cost can run into the thousands. Ames estimates that her shop welds approximately 250 to 500 seriously damaged wheels a year, indicating just how serious the problem is in this region.
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Design concern: Compressing the suspension changes the center of the wheel. When the wheel is also rolling this means there needs to be a ‘handoff’ between the three struts. The result will be the translation of energy in to compressing the next strut which will slow the wheel. Torquemada on May 21st, 2016 - 9:39am
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.
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Sam believes passionately in craftsmanship and in the skills and knowledge that come from practical experience. He worked with a small local company, KG Archery, manufacturers of archery bows, on the development of the springs for loopwheels.
This if for the wheelchair bound, super fast, super cool t-shirt wearing individual. Printed on a Navy T-Shirt with white lettering.
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In addition to these suspension extra springs are added at the handle and below the seat which gives the rider a smooth ride.
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Sam believes passionately in craftsmanship and in the skills and knowledge that come from practical experience. He worked with a small local company, KG Archery, manufacturers of archery bows, on the development of the springs for loopwheels.
Loopwheels ($300+) give you that comfortable ride you’ve been looking for. If you have a folding commuter bike like a Dahon Mu Uno, which doesn’t come with its own suspension system, then you neeed to take a look at Loopwheels. These suspension wheels allow you take bumps, curbs, and potholes in comfort with reduced vibration. The Loopwheel doesn’t fit every bike. It’s a 20″ wheel with specific clearance requirements, so check out their Kickstarter page to see if your bike is an option.
Please keep comments to less than 150 words. No abusive material or spam will be published. Slowburn April 18, 2013 02:46 AM
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That was a fantastic read. Thanks for sharing, I have already made a list of things I want to do with my car, granted not an interior list nor a 100% complete list, but as far as budget and small things (considering its just gonna be a mild modded DD) as the thread you linked calls it but I still got something out of it. Thanks again. Eventually i'm going to do a B-Swap but suspension work is a no brainer to get out of the way, atleast in my opinion OK..........so why are you asking us what should you do first if its a no brainer to you? Civics of your vintage need to be lowered about 2.5-3" with stock sized tires before you remove all wheel gap. This is too low for stock length shocks. A good riding spring lowers the car about 1-2" maximum. Some suggestions would be eibach pro kits, h&r sports, or Tein S techs with koni STRT shocks. They'll work fine with 15x7 +40 or so. I'd use 205/50/15's. But you can also use the stock 195/55/15. If you buy the wheels/tires first, the car will look funny until you lower it.
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Drive Medical Blue Streak Ultra-Lightweight Wheelchair With Flip-Backs Arms & Swing-Away Footrests
"Loopwheels turn a painful journey into a smooth one will recommend to all my wheelchair friends...."
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With standard quick release axles, a choice between 12mm or .5 inch bearings and available in 24" and 25" sizes, Loopwheels fit most manual wheelchairs...
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Swivel shock absorbing casters Wheel Material:Cast Iron core,PU wheels Size:Ø152 x 50mm ; Ø200 x 50mm Loading Capacity:260kg ~ 300kg Bearing Type: Double Ball Bearing
Cases to consider: 1: Idle - the spring should be able to carry the rider with no deflection, other wise if u lowered the spring from the beginning making the ground to hub distance smaller than the horizontal radius, you might experience lifting. but if it can support i believe its good
Heavy duty shock absorbing casters Wheel Material:PP core,Nylon wheels Size:Ø152 x 50mm ; Ø203 x 50mm Loading Capacity:260kg ~ 300kg Bearing Type: Double Ball Bearing
An important consideration when dealing with e-tron is the aforementioned weight. Though smaller than the SQ7 TDI sold in Europe with its heavy V8 TDI engine, the e-tron is still some 400 lbs. heavier. If you go with a wheel that’s not weight rated for your car, you could find yourself easily bending your wheels or even worse. We did our best to find out what we could about the weight rating of the SQ7 wheel and came away confident enough to give it a try. Even still, it is heavier than stock and boasts a wider contact patch, which meant our electric range would suffer.
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Isn’t this criticism true of the vast majority of front suspension systems on the market though? Other than a few crazy linkage equipped forks that never really caught on, compression of a suspension fork will steepen the head angle and shorten the wheelbase too. dorkdisk on May 20th, 2016 - 2:25pm
About 1% of the population in the developed world uses a wheelchair. We have hardly scratched the surface of that market yet. People in wheelchairs are living longer and healthier lives, they are more active at home and in the workplace, and some are using electric motors. There is a real need for loopwheels.
In a Globe story this February, reporter Eric Moskowitz noted that Boston fills approximately 19,000 potholes in an average winter, and that the city has gone as far as developing a new app, called Street Bump, that attempts to give drivers the ability to instantly notify City Hall when a new crater appears. And that's just the city of Boston. Do the math and consider how many gaping holes have appeared in the New England region after last winter's prodigious snowfall.
GRAND RAPIDS, Mich. — For spring 2021, TerraTrike is going big with an ambitious new model inspired by its popular Gran Tourismo, and the result is a faster, more stable and more comfortable ride. The Gran Tourismo Sport, or GTS, is TerraTrike’s entry to the growing category of all-road endurance cycling – it’s quick enough to jump into a fast group ride, but comfortable enough for hours-long gran fondos. Read More » The Impact of Bent Collisions – April 11th at 2 pm ET. Posted on April 9, 2021 by Larry Varney Jason Dubin has been hit by cars while riding his recumbent bikes and velomobiles in the streets of New York city many times. He joins us to share video and commentary of 3 of these horrifying collisions and talk about his personal safety. Then we widen the discussion with Steve Magas “Ohio’s Bike Lawyer” and our panel to put bent safety into some context and search out the best way for us all to avoid becoming another sad roadside statistic. Honza will present the news, Denny is back with his sports report, Nina Paley leads off our new Bent Product Review series with a look at the Mango velomobile and Doug returns with another “Bent Road Fixes” segment. Laidback Bike Report March 14! Posted on March 13, 2021 by Larry Varney It’ll be crazy fun hearing from the boys of the British Human Power Club on March 14th’s webcast. Join us live at 2 pm eastern time zone on FB or on YouTube here: https://youtu.be/Oijf6afNwlo.
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