Ok, I'll bite; I usually just lurk, but this is something I have personal experience with. I bought
three 20" amerityre (not the airfree brand) about 2-1/2 years ago and have never regretted getting
them. I ride a bright yellow-and-black S&B Venice trike, which is cruising-oriented. So I ordered
the yellow, glow-in-the-dark RT (semi-slicks for aluminum wheels, 20"x1.3"😉 tires from amerityre,
which work really well for me. And they look cool to boot! At first, they seemed slower and heavier
than my pneumatics, but I honestly don't notice that anymore. Not that a speed penalty really
mattered anyway, since I'm not a speed freak. But whatever price I pay in that regard is more than
offset by the peace of mind in not having to worry about flats and carrying spares/repair kit and a
pump. Avoiding flats was very important to me because I was a law student at the time and flats made
me late to at least a dozen classes (rough streets in Sacramento). And I really don't want to be
changing tires in some of the neighborhoods I ride through, if you know what I mean.
With regard to coming off the rim, that just AIN'T gonna happen with these things. They have a
special sidewall bead that firmly wedges into the rim. No amount of side loading has even remotely
caused any suggestion of the tires coming off, and I like to take corners pretty fast (with lots of
leaning). The tires are installed with a large, flattened tire iron (inexpensive) that makes it very
easy to put the tires on. Once on, they don't come off, and I've never tried to take them off.
It's been suggested that airless tires in general can damage wheels due to less absorption of
shocks. However, I think this may have been true of older-generation tires and not necessarily for
newer tires like the amerityre. My understanding from amerityre is that their tires have millions of
air bubbles in the compound, which are supposed to absorb some or most of the road shocks. I've
ridden these tires constantly for over 2-1/2 years, and my regular inspections have never shown any
wheel damage, fractures, or any other signs of stress. The wheels remain true.
One nice feature I remember when I ordered these tires was that the company let me specify the tire
pressure I was seeking for a comparable pneumatic (I specified 100 psi). I think they can somewhat
simulate a specified tire pressure of a similar pneumatic tire by varying the density of the air
bubbles in the tire compound.
To be fair, the ride does tend to be harsher than with pneumatics, but I think those riders with
suspension (shocks or shock-corded seats) would probably not notice the difference much. Anyway,
it's a small price to pay for the benefits. I also notice that the grip is somewhat reduced in the
rain, but I think this is more due to the fact that mine are essentially slicks with no real rain
channels; the mountain bike or road tread models will probably perform better in the rain.
To sum it up, if avoiding flats is very important to you and you can take some reduction in speed
(at least initially), I can recommend these tires. They've lasted well over 1500 miles and will last
many more. They look good, install easily, and stay on. If memory serves me right, I recall the
customer service was excellent when I ordered these.
Be happy to answer any questions from folks.
Floyd Vergara S&B "Recumble Bee" Trike with Canopy (Oh Yeah!)
"MLB" <[email hidden]> wrote in message
"]news:[email hidden]...
Quoted message said:"iLiad" <[email hidden]> wrote in :"]news:[email hidden]:
Quoted message said:I see a LOT of discussion about the tires, but is anybody here actually using them? If so, what
are your thoughts?
I have a trike with 16" wheels and these would be great. Id be happy with 95% as good as my
primo's.
That's askng a LOT. (based on previous discussions) ALSO, trikes are a WHOLE NOTHER THING as the
side loading on a trike may very well roll these tires right off the rim. Not seating securely has
been
Quoted message said:one of the problems with airless in the past, gotta be flexible enough to get it ON the rim, but
then not come off when riding. Some did come off. Don't think anyones tried them on a trike. We're
all waiting for someone ELSE to try first 🙂