Sunday, November 30, 2008

Airfree bicycle tires

Airfree tires of polyurethane microfoam
cannot go flat or blow out. I have them on
five bikes since 2001.


http://felixwong.com/2006/12/air-free-tires/
Felix Wong commented,
"Conclusion: I am impressed by these tires. They have convinced me that all generic claims made about modern airless tires — heavy, poor rolling resistance, hard to mount, crackpot money-making schemes, etc. — are bunk.

That they ride harsher than pneumatic tires may be true, but only marginally so. I personally don’t think they ride all that uncomfortably (and note that when I did my commuting rides, I was wearing jeans instead of padded cycling shorts!), and I especially like how I no longer have to worry about flat tires, carrying tire changing tools, or pumping up the tires before going into town.

They are perfect for the Ultimate Commuter Bike, and I believe they may even viable for training rides for competitive cyclists who don’t want to deal with flats. The main people they would not be suitable for are racers and people who are really picky about ride quality (most of these people ride sew-ups anyhow :) ).

If you try them out, please let me know what you think.


2 comments:

Mrs. Jilby said...

Was there any difference in the way your bike performed after you got these tires? Like, was it harder to pedal or was your ride rougher? Also, where did you buy them? If I'm unable to salvage my "Ike" bike and have to get another one, I may look into buying tires like this.

Thanks for any info you can give me.

vlad said...

Mrs J,

www.airfreetires.com

I weigh 265 lbs.I special ordered the Ocelot High Resilient +30% and Unidirectional High Resilient +30% airfree tires. To me the ride seems similar to that of pneumatic Michelin wildgripper @ 90 psi. In any case, I would accept a lightly harsher ride of a tire that cannot go flat or blow out.

If you weight 170 or less, probably any tire suitable for me would seem to you to have almost no rolling resistance, and ride a bit harsher than your usual pneumatic.

This Nu-Teck tire is available from Husky Industrial Bicycles in
Houston. It is just fine for riders 180 lbs or less. It has too much
rolling resistance for my 270 lbs to use it on the rear wheel, but it is OK on front wheel.
http://tinyurl.com/2eqrhv

Lightning bought the Teton AT HP tire (from airfreetires.com) which
is also made by Nu-Teck and appears to me to be the same tire.
http://tinyurl.com/5y3tfj

more questions? email me
strelok60@yahoo.com

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