The rim diameter is 622 milimeters 650b This is becoming more popular with shorter riders for road and mountain biking (where its often sold as 275", as a compromise between 26" and 29") It is smaller than 700c with a rim diameter of 584 millimeters Less commonly, you'll findThe size of a BMX bike is calculated on the basis of the top tube (the rod) The length of the top tube is measured from the seat tube to the steering head Body height Length of top tube ≤ 122 m 38,5 cm 1,22 – 1,32 m 40,5 cm 1,32 – 1,42 m 2How to measure bike frame size Measuring a classic road bike frame size is a relatively simple task To measure 1) Find the top of the seat tube (this is where the seat post is held) 2) Find the center of the bottom bracket (This holds the crank arms together) 3) Measure the distance between these 2 points
Bike Size Charts Six Different Methods Charts For Each Bicycle Type
