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 Post subject: airless tyre
PostPosted: Thu Dec 20, 2012 12:54 am 
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Joined: Thu Jan 13, 2011 4:04 pm
Posts: 514
Location: Sunny UK
wonder if it will weigh less than rocket ron?

http://www.youtube.com/watch?v=v9SWIsY8rzQ


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 Post subject: Re: airless tyre
PostPosted: Thu Dec 20, 2012 8:33 am 
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Joined: Wed Apr 16, 2008 7:43 am
Posts: 212
Location: Sapporo City, Hokkaido, Japan
I'd be worried about the weight when it goes through mud. :mrgreen:

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 Post subject: Re: airless tyre
Posted: Thu Dec 20, 2012 8:33 am 


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 Post subject: Re: airless tyre
PostPosted: Thu Dec 20, 2012 8:44 am 
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Joined: Sun May 10, 2009 3:31 pm
Posts: 445
Location: Russia, Moscow
Not too many shots of the tyre working, but from what I could see it looks rather stiff, which essentially means useless.


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 Post subject: Re: airless tyre
PostPosted: Thu Dec 20, 2012 8:54 am 
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Joined: Wed Apr 16, 2008 7:43 am
Posts: 212
Location: Sapporo City, Hokkaido, Japan
:thumbup: I noticed that too... but the comments below the video mentions that that can be customized.

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 Post subject: Re: airless tyre
PostPosted: Thu Dec 20, 2012 12:25 pm 
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Joined: Thu Jan 13, 2011 4:04 pm
Posts: 514
Location: Sunny UK
re: stiffness, I thought that too then I thought about it and reckon an air filled tyre would look like that too ... perhaps. :noidea:

tuning is probably done by drilling holes in the side walls!!

and as for filling with mud, dust, stones etc, I an sure thin flexible sidewalls to cover the holes would sort that out.

I wonder if there is a problem with the metarial tiring so over time they get softer until they collapse ..... but if it can be made to work, it would be really super - no more punctures = not carrying puncture repait kit, tyre levers, spare inner tube(s) and pump!! :thumbup:


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 Post subject: Re: airless tyre
PostPosted: Thu Dec 20, 2012 1:47 pm 
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Joined: Sun May 10, 2009 3:31 pm
Posts: 445
Location: Russia, Moscow
02GF74 wrote:
re: stiffness, I thought that too then I thought about it and reckon an air filled tyre would look like that too ... perhaps

Here is what pneumatic tyre looks like: http://www.youtube.com/watch?v=hiiPiNX90tw" onclick="window.open(this.href);return false;
On the other side if you check the airless tyre clip starting around 2:08, you will see that tyre doesn't conform to the ground at all and gets deflected off every tiny stone.


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 Post subject: Re: airless tyre
PostPosted: Sat Dec 29, 2012 5:43 pm 
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Joined: Thu Jan 13, 2011 4:04 pm
Posts: 514
Location: Sunny UK
the amount of deformation in the clip of aired tyre going down steps surprises me - looks to me to be under inflated.

would be good to see the erw going down similar .... but it is early days i guess.


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 Post subject: Re: airless tyre
Posted: Sat Dec 29, 2012 5:43 pm 


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