Try our road bike frame size calculator at the top of this article. You need a road bike frame size which corresponds to your height and leg length. You might want to alter the saddle height, change the stem length, and even change the handlebar width to finely tune the bike fit for you. Then find a test day or rent a bike to see if that size feels comfortable. You also might want to think about crank length, saddle height, and handlebar width (fit in relation to shoulder size).Ī good way to know if a bike fits is to start with our frame size calculator (at the top of this page), and then use our saddle height calculator as a baseline. There are a number of variables to consider while trying to determine if a bike fits, starting with the reach, and the standover. Unless you’re having a frame custom-built, selecting a frame will usually have very slight compromises as bike manufacturers can’t produce hundreds of different size frames. You also want to be able to stand over the top tube while comfortably reaching the ground. Simply, you don’t want to feel overly stretched (struggling to reach the bars), or overly cramped while sitting on the saddle. You can try our saddle height calculator here to find a good starting point for saddle height, or just set the saddle height so your knee has a slight bend when your foot is at its lowest point. However, it’s more important to focus on getting the correct saddle height for your leg length. Yes, most people should be able to touch the floor on tiptoes with their saddle set at the correct height for climbing. Should I Be Able to Touch the Floor on A Bike? If you are interested to know your correct crank length we have made a Crank Length Calculator. However, many bike manufacturers often stick to 170mm cranks for all their frame sizes. Does Crank Length Change with Frame Size?Ĭrank length should change with frame size, as taller riders usually have longer legs which mean long cranks will be more efficient and comfortable. Although, in an ideal world you should select the correct frame size rather than going up or down a size. Then go up or downsize depending if your leg length is closer to a bigger or smaller size.
Put your height into our road bike frame size calculator and see which inseam (leg length) range it recommends. However, It’s probably better to go off leg length/inseam. Many people say if your arm span is longer than your height, go up a size and if shorter go down a size. Is It Better to Get a Bigger or Smaller Road Bike Frame? Here is an example of a bike fitter from San Francisco in the UK inches (In)
Bike geometry calculator professional#
If you are a serious rider, or you are intending on doing lots of riding then you might want to consider getting a professional bike fit at your local bike shop. Remember that the road bike frame size calculator and the sizing tables below should only be used as a guide. Also, it will help your pedalling efficiency and give you better control of the bike. Choosing the correct frame size will help you feel more comfortable especially when you’re on long rides. It’s worth taking some time to select your road bike frame size.
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