Bicycle Wheel Size Circumference Chart

Of course this is not much help if identical tyres aren t readily available if you fancy something different or if you are looking for replacements in unusual and hard to find sizes.

Bicycle wheel size circumference chart. It will automatically calculate the estimated circumference in mm used by most new cycle. Iso 5775 is an international standard for labeling the size of bicycle tires and rims the system used was originally developed by the european tyre and rim technical organisation etrto. Does wheel size affect sizing. Etrto tire size l mm l cm inch 47 203 12x1 75 935 94 54 203 12x1 95 940 94 12 40 254 14x1 50 1020 102 14 47 254 14x1 75 1055 106 40 305 16x1 50 1185 119 47 305 16x1 75 1195 120 16 54 305 16x2 00 1245 125 28 349 16x1 1 8 1290 129 37 349 16x1 3 8 1300 130 32 369 17x1 1 4 369 1340 134 40 355 18x1 50 1340 134 47 355 18x1 75 1350 135 18 32 406.

If all three have a 15 frame there will be a height difference. However on a mountain bike the answer is yes. Wheels with an iso diameter of 584 mm were originally known as 650b and were first introduced on french touring bikes in the 1960s. Simply buy exactly the same model of tyre as those already on the bike.

If you are unsure of your bicycle tire size you can look into a bicycle tire table where you can easily and simply find just the tires that fit your bike. Please note this table is only a guideline and by no means complete or 100 accurate as wheel circumference can vary due to tire pressure tread selection tire thickness rider weight rim width and load. To use the calculator below select a wheel and tire size from the table or enter the wheel and tire size in mm in the dia. It replaces overlapping informal systems that ambiguously distinguished between sizes.

You can find them with 26 wheels 27 5 wheels or 29 wheels. Most lists the tire size both english french and german targets and rim circumference in millimeters. You may measure for one wheel revolution or for greater accuracy for three or four whatever your tape measure can span and divide by the number of revolutions. Mountains bikes now come in three different wheel sizes.

Being slightly smaller than modern road bike wheels their use persisted on small and extra small road frames that couldn t accommodate a 700c wheel. Measure your bicycle wheel and tire size with table. How do you know what size tyres will fit your bike. When you re done using this page check out my new bicycle gear ratio comparison page.

This number can make it easier to find your size on the chart. Use an accurate metal tape measure. If so then you ll need to check the markings to be. This means that you can easily.

If the tape measure is divided in inches multiply the measured circumference by 2 54 for centimeters or 25 4 for millimeters. Is a bike wheel size chart needed. For cyclecomputers that require a diameter value divide the result by 3 1416 π and for those which require a radius value divide the result by 6 2832 2 x π. It should be easy.

Generic bike computer wheel size calculator.