City Bike Size Chart. Cruiser bikes are measured from the center of the crank (or bottom bracket) to the top of the seat tube. City bike frame sizing is generally measured in centimeters (cm).
Some will measure centre of the BB to the top of the top tube (centre to top) or centre of the BB to the centre of the top tube (centre to centre).
So, make sure you look at a tire size chart and try a full-suspension mountain bike for size before buying.
Our bike sizing guide is meant to give some general direction as to the best size to fit you based on your height. A bike is so much more comfortable and fast than walking. A bike that's too big will be difficult to control.