How do I know my road bike size?

To accurately find out the size of a bike, use a tape measure to measure the distance between the middle of the pedals (the bottom bracket) and the seat post clamp. That vertical distance is the frame size, which is measured in inches for mountain bikes and centimeters for road bikes.

Does road bike size really matter?

Riding a frame that is the wrong size will eventually lead to pain in your lower back, especially if you’re on a road bike. Adjusting a seatpost or handlebar won’t compensate for the frame. Fatigue – Pedal efficiency is a major reason for getting a bike that’s perfect for your size.

Is it better to have a road bike too small or too big?

Neither a smaller or bigger frame is better for everyone and generalizations in frame sizing are almost always risky. If your riding position is established first the best decision for you will likely become much more clear. Consider bike fit the holy trinity of comfort, power, and efficiency.

Is bike frame size the same as wheel size?

In a nutshell, adult bikes are sized by the frame, and kids bikes are sized by the wheel. That means that there are two completely different measurement systems between adult and kids bikes.