The spring configuration allows the torque to be transferred smoothly between the hub and the rim
When you have plenty of bicycle to work with, such as is the case with a mountain bike, it’s not such a big deal to design it with front and rear suspension. When the bicycle in question is a diminutive folding city bike, however, it gets a bit trickier. That’s why UK industrial designer Sam Pearce has created Loopwheels. Instead of relying on a suspension fork and rear shock, it lets the bike’s 20-inch wheels absorb the bumps.
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Each wheel reportedly weighs about 300 grams (10.5 oz) more than a comparable spoked wheel.
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@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
A leading arm , used only at the front, is the opposite of a trailing arm, with the wheel in front of the pivot.
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I might eventually drop it. You have remember though, the roadsters sit atleast a half inch lower than the coupes to begin with (stock).
@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
The Loopwheel system uses springs instead of spokes, giving the wheel built in suspension.
Loopwheels give you a smoother ride. They are more comfortable than standard wheels: the carbon springs absorb tiring vibration, as well as bumps and shocks. They’re designed for everyday use and are strong and durable. They don’t run as true as a spoked wheel, and you’ll notice more sideways movement, especially in the Loopwheels Classic, but they’re a lot more comfortable.
The fact that each shock is individually adjusted and tuned makes me wonder how difficult it would be to get them synced and the negative effects of them being out of whack with one another. Colin M on May 20th, 2016 - 10:53am nightfend on May 20th, 2016 - 10:59am
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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
'Then I had a spare afternoon and remembered the idea, so decided to make a model with springs made from plastic guttering I bought from B&Q and a pencil as a hub - and it worked perfectly'.
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