Cycling and bicycle discussion forums. 
   Click here to join our community Log in to access your Control Panel  


Go Back   > >

Commuting Bicycle commuting is easier than you think, before you know it, you'll be hooked. Learn the tips, hints, equipment, safety requirements for safely riding your bike to work.

User Tag List

Reply
 
Thread Tools Search this Thread
Old 04-21-17, 11:47 AM   #1
alan s 
Senior Member
Thread Starter
 
alan s's Avatar
 
Join Date: Oct 2007
Location: Washington, DC
Bikes:
Posts: 5,192
Mentioned: 4 Post(s)
Tagged: 0 Thread(s)
Quoted: 440 Post(s)
Airless tires, a new twist

https://www.google.com/amp/www.foxne...-2019.amp.html

Not sure if these will replace the traditional wheel, but interesting nonetheless.
alan s is offline   Reply With Quote
Old 04-21-17, 12:00 PM   #2
Darth Lefty 
Disco Infiltrator
 
Darth Lefty's Avatar
 
Join Date: May 2013
Location: Orangevale CA
Bikes: '76 Paramount, 02 Hardrock, '98 C'Dale XR800, '04 Burley Samba, '15 Priority Classic
Posts: 6,940
Mentioned: 20 Post(s)
Tagged: 0 Thread(s)
Quoted: 538 Post(s)
An airless thread and a tubular thread both above the fold is why I like the commuting forum
__________________
Genesis 49:16-17
Darth Lefty is offline   Reply With Quote
Old 04-21-17, 12:01 PM   #3
CliffordK 
Senior Member
 
CliffordK's Avatar
 
Join Date: Nov 2014
Location: Eugene, Oregon, USA
Bikes:
Posts: 12,845
Mentioned: 31 Post(s)
Tagged: 0 Thread(s)
Quoted: 2445 Post(s)


Most interesting. But, if the illustration is correct, those will likely require custom wheels which may restrict them mostly to the new manufacture market.

I wonder if we will first see department stores adopting the technology. And that will be price & bulk scale driven.
CliffordK is offline   Reply With Quote
Old 04-21-17, 12:04 PM   #4
ItsJustMe
Seņior Member
 
ItsJustMe's Avatar
 
Join Date: Sep 2005
Location: Michigan
Bikes: Windsor Fens, Giant Seek 0 (2014, Alfine 8 + discs)
Posts: 13,488
Mentioned: 6 Post(s)
Tagged: 0 Thread(s)
Quoted: 270 Post(s)
Seems like it'd have a high rolling resistance.
__________________
Work: the 8 hours that separates bike rides.
ItsJustMe is offline   Reply With Quote
Old 04-21-17, 12:36 PM   #5
NormanF
Senior Member
 
Join Date: Mar 2007
Bikes:
Posts: 5,672
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 110 Post(s)
Quote:
Originally Posted by alan s View Post
https://www.google.com/amp/www.foxne...-2019.amp.html

Not sure if these will replace the traditional wheel, but interesting nonetheless.
They appear to be a breakthrough that combines the airless tire with the ability to absorb road chatter that made the pneumatic tire the defacto standard:




Tire:

NormanF is offline   Reply With Quote
Old 04-21-17, 12:47 PM   #6
NormanF
Senior Member
 
Join Date: Mar 2007
Bikes:
Posts: 5,672
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 110 Post(s)
Quote:
Originally Posted by Darth Lefty View Post
An airless thread and a tubular thread both above the fold is why I like the commuting forum
Polaris already makes one. Seeing is believing:

Airless Tires Won't Go Flat| Latest News Videos | Fox News
NormanF is offline   Reply With Quote
Old 04-21-17, 01:10 PM   #7
KD5NRH
Senior Member
 
KD5NRH's Avatar
 
Join Date: Jul 2010
Location: Stephenville TX
Bikes:
Posts: 2,784
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 212 Post(s)
Just wait until it builds up enough road gunk to add noticeable weight. Should take about ten seconds in a muddy rain.
KD5NRH is offline   Reply With Quote
Old 04-21-17, 01:30 PM   #8
ItsJustMe
Seņior Member
 
ItsJustMe's Avatar
 
Join Date: Sep 2005
Location: Michigan
Bikes: Windsor Fens, Giant Seek 0 (2014, Alfine 8 + discs)
Posts: 13,488
Mentioned: 6 Post(s)
Tagged: 0 Thread(s)
Quoted: 270 Post(s)
I'd be concerned about the wheel "rolling" out from under me. With a profile that narrow and high on the springy section, seems like there's a risk that in hard cornering it might get spongy from side to side.
__________________
Work: the 8 hours that separates bike rides.
ItsJustMe is offline   Reply With Quote
Old 04-21-17, 01:41 PM   #9
alan s 
Senior Member
Thread Starter
 
alan s's Avatar
 
Join Date: Oct 2007
Location: Washington, DC
Bikes:
Posts: 5,192
Mentioned: 4 Post(s)
Tagged: 0 Thread(s)
Quoted: 440 Post(s)
I hope they come in different colors, because that simply won't match any of my bikes.
alan s is offline   Reply With Quote
Old 04-21-17, 01:56 PM   #10
Leebo
Senior Member
 
Join Date: Aug 2009
Location: North of Boston
Bikes: Kona Dawg, Surly 1x1, Karate Monkey, Rockhopper, Crosscheck , Burley Runabout,
Posts: 4,416
Mentioned: 5 Post(s)
Tagged: 0 Thread(s)
Quoted: 366 Post(s)
Umm, plastic?
Leebo is offline   Reply With Quote
Old 04-21-17, 03:03 PM   #11
dabac
Senior Member
 
Join Date: Mar 2008
Bikes:
Posts: 6,320
Mentioned: 16 Post(s)
Tagged: 0 Thread(s)
Quoted: 286 Post(s)
Given that I can lose several mm of rubber from my tires in a year, I wonder how they plan to deal with tread - or at least run surface - wear.

And again, yet another manufacturer who has failed to understand when a flat proof tire would be most beneficial - during winter riding.
I'd really like to see a studded flat proof tire.
dabac is online now   Reply With Quote
Old 04-21-17, 03:21 PM   #12
CliffordK 
Senior Member
 
CliffordK's Avatar
 
Join Date: Nov 2014
Location: Eugene, Oregon, USA
Bikes:
Posts: 12,845
Mentioned: 31 Post(s)
Tagged: 0 Thread(s)
Quoted: 2445 Post(s)
Perhaps one wears down the rubber, then replaces the whole wheelset. No need to worry about bearings or freewheel wear.

Do you think they plan to cover the blades? Those look like the fan blades on an exercise bike.

CliffordK is offline   Reply With Quote
Old 04-21-17, 03:51 PM   #13
Whynot1999
Member
 
Whynot1999's Avatar
 
Join Date: May 2016
Bikes: 1976 Japanese Schwinn Traveler (III)
Posts: 37
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 8 Post(s)
Those look really neat. There's a lot of waste from thrown away inner tubes and tires...will you need to replace the whole wheel when the tire tread wears out, or can you just buy a new tire?
Whynot1999 is offline   Reply With Quote
Old 04-21-17, 07:20 PM   #14
NormanF
Senior Member
 
Join Date: Mar 2007
Bikes:
Posts: 5,672
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 110 Post(s)
In my experience, the tire thread on a bicycle tire seldom wears out quickly. You could go a few decades before you need to replace the rubber. On pneumatic tires, the tube is usually the first thing to go.

Now on an airless tire. They need to deliver riding comfort and Bridgestone's airless tire is still largely proof of concept.

Don't know if they'll really produce it. They have a lot of challenges in front of them.
NormanF is offline   Reply With Quote
Old 04-21-17, 07:51 PM   #15
55murray
Junior Member
 
55murray's Avatar
 
Join Date: Apr 2017
Location: Lafayette, Indiana
Bikes: 1955 20" Murray modified cruiser, 2010 Nishiki Colorado MTB, several other vintage coaster brake machines
Posts: 24
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 9 Post(s)
Think of a 15mph wind hitting those things at 45 degrees....
55murray is offline   Reply With Quote
Old 04-21-17, 08:37 PM   #16
Gresp15C
Senior Member
 
Gresp15C's Avatar
 
Join Date: Sep 2014
Bikes:
Posts: 1,234
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 84 Post(s)
I saw a Bobcat at a construction site with similar wheels, but of course wider and thicker.
Gresp15C is offline   Reply With Quote
Old 04-21-17, 08:55 PM   #17
prathmann
Senior Member
 
Join Date: Nov 2008
Location: Bay Area, Calif.
Bikes:
Posts: 6,349
Mentioned: 4 Post(s)
Tagged: 0 Thread(s)
Quoted: 207 Post(s)
Quote:
Originally Posted by NormanF View Post
In my experience, the tire thread on a bicycle tire seldom wears out quickly. You could go a few decades before you need to replace the rubber. On pneumatic tires, the tube is usually the first thing to go.

Now on an airless tire. They need to deliver riding comfort and Bridgestone's airless tire is still largely proof of concept.
My experience is the opposite since I need to replace my tires at least a couple times each year when there's no more rubber left and the cords are showing through. The tubes may have a few patches on them by then, but the tires sure don't last long.

The comfort provided by pneumatic tires is only one aspect that's hard for airless tires to match. Another is low rolling resistance. Compressing the front portion of the contact patch requires energy and creates a drag force. But with a pneumatic tire almost all of that energy is restored when the rear part of the contact patch expands and pushes the wheel forward. To date the attempts at airless tires haven't been nearly as good in minimizing rolling resistance.
prathmann is offline   Reply With Quote
Old 04-21-17, 11:16 PM   #18
Loose Chain
Senior Member
 
Loose Chain's Avatar
 
Join Date: Sep 2009
Location: USA
Bikes: 84 Pinarello Trevisio, 86 Guerciotti SLX, 96 Specialized Stumpjumper, 2010 Surly Cross Check, 88 Centurion Prestige, 73 Raleigh Sports
Posts: 1,833
Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
Quoted: 173 Post(s)
Just add a hub disc brake and you will be in high cotton.

J
Loose Chain is offline   Reply With Quote
Old 04-22-17, 12:00 AM   #19
dabac
Senior Member
 
Join Date: Mar 2008
Bikes:
Posts: 6,320
Mentioned: 16 Post(s)
Tagged: 0 Thread(s)
Quoted: 286 Post(s)
Quote:
Originally Posted by NormanF View Post
In my experience, the tire thread on a bicycle tire seldom wears out quickly. You could go a few decades before you need to replace the rubber. On pneumatic tires, the tube is usually the first thing to go.
What kind of tires do you use?
How much do you ride in a year?
How do you store your bike?

Quote:
Originally Posted by prathmann View Post
My experience is the opposite since I need to replace my tires at least a couple times each year when there's no more rubber left and the cords are showing through. The tubes may have a few patches on them by then, but the tires sure don't last long.
+1

My commuter tires probably last a bit longer than a year, but they certainly wear out.
Tubes tend to last pretty much indefinitely. I usually end up replacing them due to patch-on-patch or valve issues.
dabac is online now   Reply With Quote
Old 04-22-17, 10:59 AM   #20
Gresp15C
Senior Member
 
Gresp15C's Avatar
 
Join Date: Sep 2014
Bikes:
Posts: 1,234
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 84 Post(s)
One effect could be sunlight. Do you store or park your bike outdoors? Do you have fenders? Sunlight does a number on a lot of organic materials.
Gresp15C is offline   Reply With Quote
Old 04-22-17, 11:58 AM   #21
phughes
Senior Member
 
Join Date: Mar 2011
Bikes:
Posts: 613
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 34 Post(s)
Quote:
Originally Posted by NormanF View Post
In my experience, the tire thread on a bicycle tire seldom wears out quickly. You could go a few decades before you need to replace the rubber. On pneumatic tires, the tube is usually the first thing to go.
A few decades? I guess if the bike is left hanging in the garage...
phughes is offline   Reply With Quote
Old 04-22-17, 12:01 PM   #22
phughes
Senior Member
 
Join Date: Mar 2011
Bikes:
Posts: 613
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 34 Post(s)
My concern is traction. A pneumatic tire conforms to the surface of the road, or whatever surface you are riding. With these, the rubber would have to be rather soft to conform as well, and would wear quickly. To have it last longer, the rubber would have to be harder, and would not conform as much.
phughes is offline   Reply With Quote
Old 04-22-17, 12:34 PM   #23
dabac
Senior Member
 
Join Date: Mar 2008
Bikes:
Posts: 6,320
Mentioned: 16 Post(s)
Tagged: 0 Thread(s)
Quoted: 286 Post(s)
Quote:
Originally Posted by phughes View Post
My concern is traction.
I've used solid tires extensively. Only time I thought about traction was when crossing lane markers at a shallow angle.
Wear would be a concern eventually.
dabac is online now   Reply With Quote
Old 04-22-17, 02:15 PM   #24
DrIsotope 
Non omnino gravis
 
DrIsotope's Avatar
 
Join Date: Feb 2015
Location: SoCal, USA!
Bikes: Swiss Miss
Posts: 2,479
Mentioned: 11 Post(s)
Tagged: 0 Thread(s)
Quoted: 696 Post(s)
Have all y'all forgotten the Michelin Tweel is a thing that exists? Popular on tractors, utility ATVs, and skid-steers. This is just Bridgestone's version of that... so it would basically eschew any manner of performance in favor of longevity and absolute flat-proofing. I can absolutely see it for things like city bikes. That is, when it's available in 2019.
__________________
DrIsotope is offline   Reply With Quote
Old 04-22-17, 04:20 PM   #25
phughes
Senior Member
 
Join Date: Mar 2011
Bikes:
Posts: 613
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 34 Post(s)
Quote:
Originally Posted by dabac View Post
I've used solid tires extensively. Only time I thought about traction was when crossing lane markers at a shallow angle.
Wear would be a concern eventually.
How are they at high speed in turns? My commute has me regularly up to 45mph on downhills and curves at over 30mph. And how are they in the rain?

What solid tires are you using?

Thanks.
phughes is offline   Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -6. The time now is 02:08 AM.