How Do You Measure Bike Size

Measure the diameter of the existing tire as illustrated above d or look on the tire for the size it looks like this. The seat tube is the long tube that the bike seat post sticks into. So if you don t know what size bike do i need here are the answers.

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Sometimes however there are other ways.

How do you measure bike size. To size a bike you ll need to take your inseam measurement. You can calculate or use the bike size charts below. These designations can be confusing but one wonders how a manufacturer determines what to call a push bike s rim size. The bike size is measured from where the seat post starts and to the crank.

Record the tire diameter as this also represents the bike frame size. Ideally you ll know your bike size before you buy. If you are sizing a mountain bike measure in inches them multiply your inseam by 67 and subtract 4 inches. Bicycle frame sizes and tire sizes differ but neither of these apply when talking about whether a bicycle is 16 inches 24 inches 26 inches 27 inches or 700 millimetres.

If you look near the bottom of this tube about 3 inches 7 6 cm up from the chain sprocket you ll see a glued on label that states the bike s frame size. If you find the tire size the first dimension is the tire diameter the second dimension is the tire thickness. Look for a size label on the bottom of the seat tube first. Cut or mark the string to the spot where it goes back to the starting points and then measures it to detect the circumstance.

It ll make the whole process easier and you ll be set up for success right from the beginning. Most bikes whether road or mountain are now measured in metric units but you may find some manufacturers that still size mountain bikes in inches. Methods if you don t know how to measure a bike. If you do not know the accurate measurement you can wrap a string around the edge of the wheel to get the accurate size.

For detailed instructions and diagrams on measuring a specific type of bike try our online bike measurement tool it shows you exactly what to measure for your bike and provides a chart of suitable riders for each bike size. There are actually three now six options. Stand with your feet 6 inches apart then measure from the inside of your foot up to your crotch where your leg meets your waist. Some brands such as moots even mix the two.