Bicycle Inner Tube 12″ x 1.75/2.125 (Schrader Valve)
12″ butyl rubber inner bicycle tubes.
Current stock is 12″x1.75/2.125 with 48MM A/V (Schrader Valves /American Valves / Car Valves). These tubes easily fit in tires marked 12″ x 1.75, 12″ x 1.95 and up to 12″ x 2.125 because the tube will expand accordingly to fit the different mentioned widths. In the case of smaller widths like 1.75, 1.95, it means that the tube will not be overstretched and may mean much smaller thorns (that some times penetrate through the tire) may cause fewer problems.
But if used in 12″ x2.35 or 12″ x3.0, the tube expands a little more and therefore is a little more prone to punctures due to much smaller thorns which can penetrate through the tire.
Please Note: The pricing is per tube
