Airless bicycle tires are available, and they are relatively cheap: 1) Husky Airless Street = from $19 2) Amerityre Flatfree = from $35 http://www.bikemania.

Airless bicycle tires are available, and they are relatively cheap: 1) Husky Airless Street = from $19 2) Amerityre Flatfree = from $35 http://www.bikemania.biz/airless-no-flat/husky-airless-street-industrial-grade-20-x-2.125-bicycle-tire/ http://www.bikemania.biz/airless-no-flat/husky-airless-stree...