For a hybrid bike, multiply your inseam by 0.69 to get the appropriate size. For mountain bikes, use the same measurement and multiply it by 0.6; you will then need to convert the centimeters to inches. The frame size of your bicycle will be determined by this calculation. All types of bicycle frames are measured in the same way, regardless of their frame size.
How do you size a bike?
You’ll need to take your inseam measurement in order to properly fit a bike. Standing with your feet 6 inches apart, take a measurement from the inside of your foot up to your crotch, which is the point where your leg joins your waist. To size a mountain bike, take your inseam measurement and multiply it by.67, then deduct 4 inches from the total measurement in inches.
How to measure bike tire diameter?
Take a Measure of the Diameter Place a tape measure against the center of the wheels while the bike is in a stable position. Following that, stretch the tape securely and straight towards the inner border of the tire, as specified by ISO regulations. The radius, on the other hand, is the reading you’ll receive. As a result, you should multiply the number by two to obtain its circumference.