Bicycle Wheel Sizes Chart

If you know their numbers just input them below and we ll calculate it automatically for you.

Bicycle wheel sizes chart. How to calculate bicycle gear ratio. The actual iso diameter of a traditional 26 wheel is 559 millimeters. 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 20x1 25 1450 145 35 406 20x1 35 1460 146 40 406. That s why missy.

Sometimes you can t find any iso size on a tyre only the old school markings. Tyres of the same size may come with lots of different markings. 27 5 650b wheels iso 584 mm. Road bike size chart.

Simple just divide your rear cog size from your front chainring size. Now you can take your calculator and calculate the right size. Getting a professional bike fit before you buy can make all the difference. It s important to note that you cannot mix fractional markings with decimals.

Next using these charts below determine which size bike will work for you. As with most bike wheel naming conventions the term 26 inch does not refer to the diameter of the wheel itself but rather the approximate outside diameter of the tire that fits this wheel size. If you re looking at a used bike online. Also take a look at our complete bicycle gear ratio chart below to see how your size compares to other gearing options.

The wheel size is based on the diameter of the tire see below and as each tire size gets larger so does the size of the bicycle frame. Measurements like 26 1 which is the 27 5 size and 28x two fractions which is the 29 size are fractional inch markings. Road bikes sizes are usually given in centimeters while mountain bike and hybrid sizes are usually given in inches. Adult bicycle frames are normally measured from the middle of the bottom bracket to the top of the seat tube.

Although they re familiar they can be very confusing. Kids bikes come in these different wheel diameter sizes. 12 inch 14 inch 16 inch 18 inch 20 inch 24 inch and now even 26 inch. Invest in a bike fit.

Mountain bike size chart. 28 1 15 8 28 1 1 or 700 32c which are all 32 622.