MIDAS Murai tires "no flat no tube no stress"
#1
Thread Starter
Painfully average.
Joined: Jun 2010
Posts: 2,304
Likes: 4
Bikes: Caad10 / All-City SP
MIDAS Musai tires "no flat no tube no stress"
I was looking at this video: https://vimeo.com/26422501
and I became instantly interested in these tires when the guy is riding these Midas tires on a bunch of broken glass or something, apparently they don't need any tubes, no pump or valve. just slap them on and go..
Anybody know anything about them? old? new? If someone has ridden them, let us know!
Search found me nothing
and I became instantly interested in these tires when the guy is riding these Midas tires on a bunch of broken glass or something, apparently they don't need any tubes, no pump or valve. just slap them on and go..
Anybody know anything about them? old? new? If someone has ridden them, let us know!
Search found me nothing
#2
Senior Member
Joined: Sep 2009
Posts: 9,948
Likes: 400
From: PHL
Bikes: Litespeed Catalyst, IRO Rob Roy, All City Big Block
Looks like they're solid rubber, which says "ridiculous heavy" to me, although the site likens their weight to that of a feather. Aside from that, I'd be concerned about slippage. Not sure how they've worked with that problem, because I can't read Korean.
All in all, I'd be interested in trying them.
All in all, I'd be interested in trying them.
#6
Senior Member
Joined: Jul 2011
Posts: 169
Likes: 0
From: Orlando, FL
Rough idea of how it works from the installation page of their english site : https://midas-tire.com/eng/2_tech/tech2_01.html
Has a few videos of the "pin" system.
Has a few videos of the "pin" system.
#7
Senior Member
Joined: Jan 2006
Posts: 2,671
Likes: 0
From: East coast
Bikes: Specialized Tarmac Expert, Cannondale R700, Specialized Langster, Iron Horse Hollowpoint Team, Schwinn Homegrown
maybe, i know at the shop he have mounted a few solid wheelchair tires..........awful.
#8
Senior Member
Joined: Jul 2011
Posts: 169
Likes: 0
From: Orlando, FL
They mention in their "Q&A" section that the installation process is by no means easy. I'm more curious about the strength of the compound itself. If it takes 20 minutes to install the thing and then 1 rock takes an awkward chunk out of the edge of the tire, then the whole thing becomes pointless. Anyone who has ever wheeled around a shopping cart with a chunk out of the tire knows how annoying that thumping can become, and that isn't at 20mph.
Tubes have the ability to somewhat adjust the "trueness" of the tire itself, but for this tire if you end up wearing down a section through skidding or by whatever means you may end up with a new issue that results in an out of whack ride.
Tubes have the ability to somewhat adjust the "trueness" of the tire itself, but for this tire if you end up wearing down a section through skidding or by whatever means you may end up with a new issue that results in an out of whack ride.
#12
Pneumatic tires spelled the beginning of bikes and automobiles for a reason - solid tires suck.
or, as Sheldon says:
or, as Sheldon says:
Originally Posted by https://sheldonbrown.com/tires.html
Of all the inventions that came out of the bicycle industry, probably none is as important and useful as Dr. Dunlop's pneumatic tire.
Airless tires have been obsolete for over a century, but crackpot "inventors" keep trying to bring them back. They are heavy, slow and give a harsh ride. They are also likely to cause wheel damage, due to their poor cushioning ability. A pneumatic tire uses all of the air in the whole tube as a shock absorber, while foam-type "airless" tires/tubes only use the air in the immediate area of impact.
Pneumatic tires require pumping up from time to time, and can go flat, but their advantages overwhelm these difficulties.
Airless tire schemes have also been used by con artists to gull unsuspecting investors. My advice is to avoid this long-obsolete system.
Airless tires have been obsolete for over a century, but crackpot "inventors" keep trying to bring them back. They are heavy, slow and give a harsh ride. They are also likely to cause wheel damage, due to their poor cushioning ability. A pneumatic tire uses all of the air in the whole tube as a shock absorber, while foam-type "airless" tires/tubes only use the air in the immediate area of impact.
Pneumatic tires require pumping up from time to time, and can go flat, but their advantages overwhelm these difficulties.
Airless tire schemes have also been used by con artists to gull unsuspecting investors. My advice is to avoid this long-obsolete system.
#13
Senior Member
Joined: Jun 2011
Posts: 76
Likes: 0
They list the aprox tire pressures for their two versions at 100psi and 130psi. That seems far from "hard rubber." And based on the reading they have no more a chance at pits or chips than any other tire you might run right now.
#15
Senior Member
Joined: Sep 2009
Posts: 9,948
Likes: 400
From: PHL
Bikes: Litespeed Catalyst, IRO Rob Roy, All City Big Block
#16
Your cog is slipping.



Joined: May 2009
Posts: 26,053
Likes: 100
From: Beverly MA
Bikes: EAI Bareknuckle
Okay...I guess I meant solid rubber and you can clearly see at the end of the video that there are big holes left behind as the dude is picking debris from his tire. After a month of riding every day, those tires would be total garbage.
#17
And incase you don't realize, the nature of the polymer is to have a shape and return to that shape after deformation. That is how after you put pressure on the tire via rolling, it is still shaped like a tire and not flatter. Any debris that punctures the tire is displacing material, not removing it, so naturally after the debris is removed the hole will fill back in as the tire returns to original pressure/shape.
#20
I'm not saying these are a great product, but you're acting like a bunch of elitest snobs to shoot them down with generalizations that can't even properly be applied to the product in a logical way. Even with nice tires I still get about 3 flats a month, and every time it's inconvenient.
I doubt anything like this will ever take over in a racing relm, but they could turn out to be a great commuter tire alternative that saves a lot of "eh f**k" moments when you go to leave the house and got a slow leak flat over night that you just noticed or you're riding to work and here that quick "pshhhhh" that means you better have left 5 minutes early or you're late now.
Maybe they're nothing, but maybe they turn out to work great and be a huge help to city riding. I know for sure we'd never find out if we all had your attitudes.
#21
Your cog is slipping.



Joined: May 2009
Posts: 26,053
Likes: 100
From: Beverly MA
Bikes: EAI Bareknuckle
Where have you been? There have been plenty of other airless bicycle tires like this and I see NO ONE using them.
https://tinyurl.com/3dneqxa
https://tinyurl.com/3dneqxa
#22
I'll just be obvious about it because I'm a big boy https://lmgtfy.com/?q=technological+advancement
aluminum frames were sh*t when they first came out too, but look at them now and you'll see they are used 5:1 to steel in any competitive cycling.
aluminum frames were sh*t when they first came out too, but look at them now and you'll see they are used 5:1 to steel in any competitive cycling.
#23
Your cog is slipping.



Joined: May 2009
Posts: 26,053
Likes: 100
From: Beverly MA
Bikes: EAI Bareknuckle
Seeing as you put it that way - when we see competitive cyclists using "technologically advanced" heavy, solid rubber tires that take 20 minutes to mount...then we can dig this thread up to talk about how wrong I was back in 2011.
Last edited by Scrodzilla; 07-27-11 at 05:04 AM.
#24
I'll just be obvious about it because I'm a big boy https://lmgtfy.com/?q=technological+advancement
aluminum frames were sh*t when they first came out too, but look at them now and you'll see they are used 5:1 to steel in any competitive cycling.
aluminum frames were sh*t when they first came out too, but look at them now and you'll see they are used 5:1 to steel in any competitive cycling.
It is a dumb analogy.
#25
I'll just be obvious about it because I'm a big boy https://lmgtfy.com/?q=technological+advancement
Thread
Thread Starter
Forum
Replies
Last Post
ponchera
Cyclocross and Gravelbiking (Recreational)
10
09-19-11 12:00 PM





