Amazon.com : 20" 26" Bike Tires 20 x 2.125 26 x 2.1 inch Folding Bike Tires for Mountain Bike MTB Beach Cruiser Bike City Urban or Commuter Bicycles Hybrid Bikes (20 X 2.125 Pair) : Sports & Outdoors
Amazon.com : 26x2.10 inch Bike Tires Pair Mountain Bike Tires 60 TPI Foldable Kevlar High Grade Made Bicycle Tires (26x2.10) Pack of 2 : Sports & Outdoors