# How To Measure A Bike Frame Size

### Be sure of the type of bicycle you want:

How to measure a bike frame size. Frame size = leg inseam in centimeters x 0.7 if you are not comfortable with the calculations, the chart below can be of great help. Calculating an mtb frame size: In the case of how to measure a road bike frame, follow the following formula.

If your bike shop gives frame size by seat tube length, take your inseam and multiply it by.185. These can be a blur if you don’t know what they mean and what to look for. With every bike there is a geometry sheet that will give the exact measurements of everything from the top tube length to the seat tube angle.

However, the reading you’ll get is the radius. You get the frame size by measuring the appropriate part of the bike, depending on what type of bike it is. Finding a bike you feel comfortable on can require much more time.

Measuring a classic road bike frame size is a relatively simple task. The first thing to understand is that there are two basic measurements when we’re talking about bike size: You’ll then have the seat tube length in inches.

Wheel size refers to the diameter of the wheel and is less important than the size of the frame. For some people, the number 17 or 54, or the letters xs, s, m, l or xl cause confusion. To take this measurement you should stand with bare feet, upright with your back against a wall.

If you need to convert your measurements to inches, divide them by 2.54. Therefore, you should multiply the number by 2 to get its diameter. But it can be a hassle to measure the frame in inches and centimeters at the same time.

### What size frame will I need? Bicycle frame size, Bmx

Source : pinterest.com