How to Measure Your Mountain Bike Frame for the Perfect Fit
To measure a mountain bike frame, first, measure the distance between the center of the bottom bracket and the top tube’s intersection with the seat tube. This is the bike’s seat tube length. Next, measure the top tube’s length from the center of the seat tube to the center of the head tube. Finally, measure the bike’s stand-over height by standing with both feet flat on the ground and measuring from the top-tube to the ground, centered between the wheels. These three measurements are crucial to ensure that the mountain bike frame fits the rider correctly.