People out there lucky in the sense that they know how to ride a bike but unlucky in the sense that doing so jars their spines and brains and generates great discomfort in the crotchal region, say hello to Loopwheels. Loopwheels are 20" bicycle wheels with built-in spring systems between their hubs and wheel rims that provide suspension and cushioning from road bumps and potholes. So that everyone who finishes a Loopwheeled bike jaunt does so with lumbar vertabrae, tailbone, and rectum as intact as they were before the ride began.
When driven wheels are independently suspended, the differential is fixed to the frame and drives the wheels by jointed drive shafts.
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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
Both modeling and experimental results demonstrate several realistic scenarios in which wheel hubs experience accelerations greater than 100g, sometimes at very low vehicle speeds. This paper focuses on the experimental determination of suitable design goals for in-hub motors (wheel motors), describing the experimental test rig, experiment procedures, and experimental results from testing conducted at UT-CEM. The paper also discusses implications of these results on wheel motor design, leading to the conclusion that a realizable and feasible design goal for a combat vehicle wheel motor shock rating is 150 g's, with a 10 to 20 ms pulse width.
Loopwheels' funding campaign runs on Kickstarter through May 15, 2013. Backer packages range from a single front or rear wheel to both wheels to a Dahon folding bike pre-pimped with its own set of 3-speed Loopwheels.
With Fat Tires And A Full Suspension, This Folding E-Bike Is Perfect For Off-Road Riding
Give thanks, be humble23rd May 2018Getting started22nd May 2018LeJogLe, 6 years later21st May 2018#BeMoreMike – thoughts on a Welsh ride12th April 2017Early morning mountains in Geneva12th April 2017
Measure your peak horsepower, torque and boost pressure on any run with an integrated dynamometer. Then compare it to previous records.
Love them? We’ll help you select your brand new pair of Loopwheels for you to keep, and arrange the collection of your trial wheels. You can pay for your wheels in full or via monthly instalments.
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With every rotation the springs will bend and absorb a amount of energy. Normally this is called “damping”. Its pretty useful in some cases. But it’s pretty unusual to damp a rotation of wheels, because this will slow down the straight moving. For Bicycles (and all other vehicles) you should mount your springs in the direction where the impact is coming from plus a additional damper to stop the bouncing of the spring. David on April 14th, 2013 - 6:03pm Hmmmm on April 14th, 2013 - 6:31pm
That’s why you don’t want suspension between the ground and your hubs. Plus, many, many other reasons. potbellyjoe on May 20th, 2016 - 11:27pm
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Designed by Jelly Products, it’s an erstwhile standard 20-inch bicycle wheel with a twist: it comes with a suspension system built into the wheel itself. Switch them in place of your bike’s standard wheels and enjoy the most stable ride you can imagine. Or, better yet, use them for your folding bike (which, usually, skips the suspension forks to save on weight and bulk) to give it a full-fledged suspension without adding much in terms of size.
It’s one thing to look at the video, but up close they really are a sight to behold – they literally challenge everything you think you know about a spoked bike wheel.
Among the very few prominent recumbent groups around the world precious few can boast of the long history of racing and designing bents as can the British Human Power Club. We’ll chat with club officers Alan Goodman, Barney Harle and Chris Hamilton about their full racing seasons (including the World HPV Championships), member’s unusual HPV builds and the early group history with founding member Dave Larrington. Also Dave Ashenbrener returns with an update on his “Lost Recumbent” AR-3 tilting trike which he has now produced and is available to purchase. Honza, Doug and Nina are back with their segments as well. Midwest Trike Demo Sale – February 27! Posted on February 26, 2021 by Larry Varney