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New wheel technology.

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Lord Percy
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PostPosted: 17:54 - 27 Dec 2013    Post subject: New wheel technology. Reply with quote

Well, I say 'new', but the website says it's 'suppressed', so I don't know how old this is. Maybe BCF have come across it before.

https://www.minds.com/blog/view/51425/suppressed-wheel-technology-why-aren039t-these-on-domestic-roadways

Any ideas on whether it would work on a motorbike? I can't see why not. I certainly would be far happier with wheels like this. No chance of a blowout.

https://loudbud.com/videos/thumbnails/369.jpg
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sickpup
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PostPosted: 18:01 - 27 Dec 2013    Post subject: Reply with quote

Not suppressed just not very functional.

how do you change the pressures?
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Sable
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PostPosted: 18:04 - 27 Dec 2013    Post subject: Reply with quote

Leaning a bike with them on must feel weird o.o
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sidewinder
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PostPosted: 18:09 - 27 Dec 2013    Post subject: Reply with quote

Polaris are using the idea for there quads Thumbs Up

https://editorial.autos.msn.com/blogs/post--polaris-debuts-airless-armored-tire-on-new-atv

https://i1128.photobucket.com/albums/m492/sidewinder11/ac14ab4f215e3abcc87d02cf5244f15e_zpsb87e7707.jpg
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Seigi
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PostPosted: 18:10 - 27 Dec 2013    Post subject: Reply with quote

I don't know how leaning would work, would it not just kinda flex and throw you off?
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c-m
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PostPosted: 18:11 - 27 Dec 2013    Post subject: Re: New wheel technology. Reply with quote

They look too weak to work on a motorcycle.

Apart from the largest sportsbikes, most motorcycle wheels are about a third as wide as the average car.

In terms of leaning, the flex would most likely aid grip. Similar to the Mezler z6 where belt is more flexible towards the edges of the tyre.
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-Matt-
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PostPosted: 18:44 - 27 Dec 2013    Post subject: Reply with quote

Can't see how this would work on a 2 wheeled vehicle, without any constant curve on the tyre would it not just constantly flat-face the road like riding with a huge puncture Thinking

Interesting design though
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Walloper
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PostPosted: 18:57 - 27 Dec 2013    Post subject: Reply with quote

It has been around for ages.
Nothing to-date can compete with a Pneumatic tyre for performance.

That honeycomb wheel is only puncture proof.

You can make a pneumatic tyre puncture proof without having to go to all the bother of re-inventing the wheel. Smile

No reason it can't be used on a motorbike. A Harley Dae-Anything would be an apt candidate for the technology as they can't corner very well anyway. Razz

Useless on a proper bike as there is very limited lateral performance.
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Last edited by Walloper on 19:00 - 27 Dec 2013; edited 1 time in total
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Rogerborg
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PostPosted: 18:58 - 27 Dec 2013    Post subject: Reply with quote

Seen them before, and I lulz at the tin foil hatters.

The issue I can see is fatigue in the plastic as it flexes. ""These are designed to last the life of the vehicle," claim Polaris. The same Polaris who made stuartt's Victory Hammer...

Nanny Brussels would have a fit if you tried using those on road in Europe. Polaris would likely need to partner with some German outfit in order to magically make them $uitabl€. Whistle
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Nick 50
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PostPosted: 19:12 - 27 Dec 2013    Post subject: Reply with quote

They will work well on slow moving vehicles, such as Army Hummers and such. They look like they are only designed to deal with a radial load. I would question the longevity of the wheel under an axial load (like cornering hard) on a car.

As for motorcycles, as soon as you lean past 0 degrees, you are changing from a Radial load to an Axial load. The more the lean, the more the axial load increases.

I highly doubt the wheel design would give a consistent flex with a motorcycle leaned over and guess it would try to buckle in on itself.

https://www.bwc.com/files/axial_radial.png
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Walloper
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PostPosted: 19:22 - 27 Dec 2013    Post subject: Reply with quote

The same sort-of idea has been used since ages ago.
Cat fitted a belt and steel track pads to their big loader's tyres to reduce tyre damage.

The belt was similar to a conveyor belt rubber with steel cords inside.
The belt had steel plates at regular intervals to allow the steel 'track' pads to be bolted on.
The belt was mounted to the outside surface of a 'bead-less' tyre. Which is simply a big thick rubber inner tube.
The technology worked but if they were punctured (by side cuts) the pneumatic element was more or less un-repairable with the repair tech available at the time.

The belt was fitted to the tyre when deflated and vacuum-ed to shrink the tube. The belt fitted then the tube inflated again.
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iooi
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PostPosted: 19:37 - 27 Dec 2013    Post subject: Reply with quote

I should imagine that cost is a major factor.
Where a tyre is cheap to produce, as is a std wheel.

These will be expensive. Require a full replacement once the rubber has worn down.
Also how often will they be checked for cracks. Given the state of roads.

How often do we get punctures now?
Bike I have down 30K + and not had one in the last 4 years.
Car 40K + and only had one (did not go flat) that was a screw in a tyre that only come to light once it was changed Embarassed
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Walloper
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PostPosted: 19:44 - 27 Dec 2013    Post subject: Reply with quote

iooi wrote:
I should imagine that cost is a major factor.
Where a tyre is cheap to produce, as is a std wheel.

These will be expensive. Require a full replacement once the rubber has worn down.
Also how often will they be checked for cracks. Given the state of roads.

How often do we get punctures now?
Bike I have down 30K + and not had one in the last 4 years.
Car 40K + and only had one (did not go flat) that was a screw in a tyre that only come to light once it was changed Embarassed


As I sez, Pneumatic Tyre attributes haven't been advanced much since the air filled rubber tyre was invented. (by that Scotch cnut Razz )

Cannot help masel sorry.

https://en.wikipedia.org/wiki/John_Boyd_Dunlop
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_mjs_
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PostPosted: 20:00 - 27 Dec 2013    Post subject: Reply with quote

I'm pretty sure there's a .gif on the web somewhere showing a big military vehicle fitted with these slamming on the brakes and the rear axle gets torn off.
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Walloper
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PostPosted: 20:08 - 27 Dec 2013    Post subject: Reply with quote

_mjs_ wrote:
I'm pretty sure there's a .gif on the web somewhere showing a big military vehicle fitted with these slamming on the brakes and the rear axle gets torn off.


This?

https://www.youtube.com/watch?v=9-44vU0lrAg

but.... Conventional Pneumatic Tyres with motion detection stripes painted on the side walls.
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Lord Percy
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PostPosted: 20:26 - 27 Dec 2013    Post subject: Reply with quote

Interesting points so far Thumbs Up

I'm not really for or against it, I just wondered what others thought about it. It does interest me though. I would be more than happy to try one.

About the shape of the tyre and suitability for motorbikes - see link at end of post. Or just see this image:

https://thekneeslider.com/images/michelinairless2.jpg

Nick50 - Regarding the radial vs axial load - I'm not sure what you mean there. Just by looking at the design of it, it looks like it wouldn't have any problem at all under an axial load. It is all the same material after all. What do you expect would happen under a large axial load?

Whoever said about the inner structure getting cracks - fair point. Although it would be interesting to see the stuff up close. I mean, we can sit here and worry about that honeycomb structure getting a crack in it, but maybe it's made of a material that has as much chance of 'cracking' as the rubber of a standard tyre.

Also about replacement of the tyre - I read somewhere (I think in one of the links below) that the whole wheel would not need replacing, as the 'tyre' surface material would just need to be stripped and relaid. It would actually use less material as it doesn't have a side wall.

Another benefit is that the tread could have plenty of proper holes put into it to greatly reduce the risk of aquaplaning.

Those are my thoughts so far Thumbs Up

More info here:

Michelin Tweel - Benefits and Drawbacks.

Michelin prototype airless motorcycle tyre.
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-Matt-
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PostPosted: 20:29 - 27 Dec 2013    Post subject: Reply with quote

Quote:
Above 50 mph (80 km/h), the Tweel vibrates considerably, which in itself is a problem that also gives rise to undesired noise and heat. A fast-moving Tweel is unpleasantly loud and produces 5 percent more friction compared to a radial tire.
Do not want Puke
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chickenstrip
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PostPosted: 20:30 - 27 Dec 2013    Post subject: Reply with quote

-Matt- wrote:
Can't see how this would work on a 2 wheeled vehicle, without any constant curve on the tyre would it not just constantly flat-face the road like riding with a huge puncture Thinking

Interesting design though
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-Matt-
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PostPosted: 20:33 - 27 Dec 2013    Post subject: Reply with quote

Potential then perhaps Razz looks bloody precarious though, would of thought you have to fling yourself to get it to lean each time Shocked
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Walloper
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PostPosted: 20:34 - 27 Dec 2013    Post subject: Reply with quote

Lord Percy wrote:
Interesting points so far Thumbs Up

I'm not really for or against it, I just wondered what others thought about it. It does interest me though. I would be more than happy to try one.

About the shape of the tyre and suitability for motorbikes - see link at end of post. Or just see this image:

https://thekneeslider.com/images/michelinairless2.jpg

Nick50 - Regarding the radial vs axial load - I'm not sure what you mean there. Just by looking at the design of it, it looks like it wouldn't have any problem at all under an axial load. It is all the same material after all. What do you expect would happen under a large axial load?

Whoever said about the inner structure getting cracks - fair point. Although it would be interesting to see the stuff up close. I mean, we can sit here and worry about that honeycomb structure getting a crack in it, but maybe it's made of a material that has as much chance of 'cracking' as the rubber of a standard tyre.

Also about replacement of the tyre - I read somewhere (I think in one of the links below) that the whole wheel would not need replacing, as the 'tyre' surface material would just need to be stripped and relaid. It would actually use less material as it doesn't have a side wall.

Another benefit is that the tread could have plenty of proper holes put into it to greatly reduce the risk of aquaplaning.

Those are my thoughts so far Thumbs Up

More info here:

Michelin Tweel - Benefits and Drawbacks.

Michelin prototype airless motorcycle tyre.


The only 'advantage' is over rated puncture proofing. Apart from that it brings nothing new to the table. Which is why I'm out. Very Happy
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Islander
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PostPosted: 20:34 - 27 Dec 2013    Post subject: Reply with quote

Meet the moon buggy. Used on Apollo missions in the 70s. Laughing

https://www.nasa.gov/images/content/154143main_ducttape_apollo17_big_med2.jpg
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chickenstrip
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PostPosted: 20:35 - 27 Dec 2013    Post subject: Reply with quote

Perhaps it would work using a more 3D construct, with completely enclosed honeycomb type cells? Could then be shaped with curvature like a normal bike tyre.
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Lord Percy
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PostPosted: 20:43 - 27 Dec 2013    Post subject: Reply with quote

Walloper wrote:

The only 'advantage' is over rated puncture proofing. Apart from that it brings nothing new to the table. Which is why I'm out. Very Happy


Well I'm in! Because my biggest motorcycling fear is a high speed front wheel blow-out Laughing .

I think that's pretty much the one reason these things are in design anyway - puncture evasion.

Ok actually it seems they were made for the military so their vehicles wouldn't be rendered immobile by IEDs.

It really does seem to be true that most technological advance comes through war.
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Walloper
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PostPosted: 20:50 - 27 Dec 2013    Post subject: Reply with quote

Lord Percy wrote:
Walloper wrote:

The only 'advantage' is over rated puncture proofing. Apart from that it brings nothing new to the table. Which is why I'm out. Very Happy


Well I'm in! Because my biggest motorcycling fear is a high speed front wheel blow-out Laughing .

I think that's pretty much the one reason these things are in design anyway - puncture evasion.

Ok actually it seems they were made for the military so their vehicles wouldn't be rendered immobile by IEDs.

It really does seem to be true that most technological advance comes through war.


But they don't need this shit.
It is overly complexicating a simple solution.
Modern Runflat tyres work perfectly well and can be fitted to standard rims.
I had them on my car and could run around quite happily with only 4psi in the bastarts. Embarassed The tyre pressure monitor told me when they got low. You can't really notice from the feel through the vehicle.
I got shot of them as they are a bit noisey and Hum too much.

It smells like some fecker woke up in the lab with a hard-on for this idea. And then spunked in someone's coffee and they swallowed.
Or invent something to solve a problem that doesn't exist yet.
They need to go back and invent a problem now. Smile
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Pete.
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PostPosted: 21:01 - 27 Dec 2013    Post subject: Re: New wheel technology. Reply with quote

Lord Percy wrote:
Well, I say 'new', but the website says it's 'suppressed', so I don't know how old this is. Maybe BCF have come across it before.


Quite a few years ago yeah. There was a bit of hype when they were announced (that very pic) then nothing.
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