About this item

• FIT Tube 12 x 1.75 - 2.1/4, ETRTO 47-203 , RIM Width 20 mm, Tolerance +/- 1 mm
• ECONOMICAL No more wasting money on tubes
• COMPATIBLE with most US rims, use size chart to pick your best fit or call 1-877-BIKEAID for sizing and installation assistance
• NOT compatible with Raleigh or Schwinn produced prior to 1980
• GREAT for bicycles, trailers and jogger/strollers