Inner tubes vary in size depending on the circumference of the wheel and the width of the tyre.
Bike inner tube sizes explained.
Thus you need to be sure any new bike tube has sizing that has a width range that aligns with the sizing on your bike tires.
The diameter needs to be the same e g.
Bike tube sizing essentially mirrors bike tire sizing with one exception.
Because inner tubes stretch they typically come in a range of widths.
Common inner tube ranges for 26 inch 27 5 inch and 29 inch tire diameters 1 0 to 1 15 inches 1 25 to 2 0 inches 2 0 to 2 35 inches 2 4 to 3 0 inches.
For example one of our most popular tubes is the 26 x 1 75 2 125 which means it fits a 26 inch diameter tire with a width in the range of 1 75 to 2 125 inches.
Depending on whether your bike is a road bike touring bike mountain bike or child s bike the diameter and circumference of the wheel can vary.
Mountain bike tyre sizes are usually stated in inches.
A narrower inner tube will balloon.
How to get the right bike tube and valve size.
27 5 x 1 9 2 3 for example.
All inner tubes will come with a recommended range for tyre width for example 700 20 25 for traditional road tyres 700 25 32 for wider road tyres.
Inner tubes typically state a wheel diameter and width range for which they will work e g.
So a 29 inch mtb tube will have the same diameter as a 700c road wheel while a 27 5 inch tube will be the same diameter as a 650b road wheel.
The width of your tire 1 95 inches falls within the range of the widths displayed on the tube.
26 x 1 95 2 125 indicating that the tube is intended to fit a 26 inch tyre with a width of between 1 95 inches and 2 125 inches.
This is the reason why you see inner tubes listed with one number for the diameter and a range for the width e g.
Then within these categories there are further sub divisions such as 26 inch 27 5 inch and the 29ers commonly.