Amerityre are a fairly new tubeless polyurathan foam tyre. They are similar to the older Greentyre but seem to be much better quality see this: [ame="http://www.youtube.com/watch?v=28slWsd_fG4"]Review:
Amerityre flat-free (tubeless) tire technology - YouTube[/ame]
Incidently I also used a similar tyre of tyre called a Greentyre on an old three speed bikes for several months with no problems whatsoever. Maybe these tyres are not so good on cheap alloy wheels, but they performed quite well on my old steel rimmed three speed bike wheels. But as I said the Amerityre is supposed to be far superior.
Amerityre are a fairly new tubeless polyurathan foam tyre. They are similar to the older Greentyre but seem to be much better quality see this: [ame="http://www.youtube.com/watch?v=28slWsd_fG4"]Review:
Amerityre flat-free (tubeless) tire technology - YouTube[/ame]
Incidently I also used a similar tyre of tyre called a Greentyre on an old three speed bikes for several months with no problems whatsoever. Maybe these tyres are not so good on cheap alloy wheels, but they performed quite well on my old steel rimmed three speed bike wheels. But as I said the Amerityre is supposed to be far superior.