Place the bicycle on level ground
Measure wheel size from one end of the tire to the opposite end through the center
Measure frame size from the center of the bottom bracket to the top of the seat tube
Measure top tube length from the center of the head tube to the center of the seat tube
Measure standover height from the ground to the top of the top tube
Measure seat tube length from the center of the bottom bracket to the top of the seat tube
Measure reach from the center of the bottom bracket to the center of the head tube
Measure stack from the center of the bottom bracket vertically to the top of the head tube
Measure handlebar width from one end of the bar to the other
Measure stem length from the center of the steerer clamp to the center of the handlebar clamp
Measure crank arm length from the center of the bottom bracket to the center of the pedal axle
Measure saddle height from the center of the bottom bracket to the top of the saddle
Measure tire width across the widest part of the tire
Measure overall bike length from the front wheel to the rear wheel
Measure bike height from the ground to the highest point of the bike