How To Find Road Bike Wheel Size

This number represents the distance from the center of the crank to the top of the frame at the seat tube.

How to find road bike wheel size. The history of that name would need a whole other blog post to fully explain but the short version is that it came from international tire sizes where the outside diameter would be approximately 700mm and multiple rim sizes would be labeled 700a 700b 700c etc. Bike frame sizes are most commonly listed in centimetres e g. 48cm 54cm inches e g. His calculator uses an pre defined diameter for every rim tire combination and his diameters are almost always different than what the math would predict.

When the bicycle is upright you will be able to measure the bike wheel without the bike tipping onto you. If you are measuring the bike alone a retractable metal tape measure will be sturdier than a plastic tape measure while leaving you a free hand. For mountain bikes take the same measurement and multiply 0 6 you will then need to change the centimeters into inches. When shopping for road tires you ll look for 700c x your preferred width 23mm being the slimmest option and going up to 36mm.

The standard modern road bike wheel has an iso diameter of 622 mm and is referred to as 700c makes sense right. First consider what kind of bike you want sizing varies greatly between road and mountain bikes as well as between men s and women s models and even between. Mountain bike leg inseam cm x 0 66 your frame size road bike leg inseam cm x 0 70 your frame size if your leg inseam is 76cm then your right mountain bike size is 50 cm 20 road bike 53cm and city bike 52cm or use the. If you want to know the sums then to find your road bike frame size take your inseam length in centimeters and multiply it by 0 70.

Same thing with hybrid bikes where numbers people throw around also indicate frame size only in this instance as measured in inches. Mountain bike size chart. Road bikes are one type of bikes using frame measurements in centimeters to indicate size and the typical road bike size is usually between 50 and 64 cm. Size used on some high performance road and triathlon bikes especially those designed for smaller riders.

For a hybrid bike take your inseam and multiply it by 0 69. The venerable sheldon brown has a gear calculator that uses a different method to determine wheel size. 27 twenty seven inch was a size used on many older road bikes. 17in 19in and in sizes such as small medium and large.

Stand the bike upright by leaning it against a wall or using the kick stand. In some site it suggested frame size of 18 5 47 cm size.