How to choose the right road bike frame size?

How to choose the right road bike frame size?

Choosing the right frame size for your road bike is essential as it determines both your comfort and your performance. There are several ways to determine your bike size; the most reliable is to go by your inseam height.

  • Time: 5 min
  • Level: Easy
  • Tools: A tape measure | A notebook

Steps

  1. Get a tape measure and a thin, rigid support, such as a notebook.

  2. Barefoot, stand with your back against a wall, heels touching it and 5 cm apart.

  3. Place the rigid support between your thighs, making sure it is horizontal and in contact with your perineum.

  4. Measure the distance between the floor and the top of your rigid support. This will give you your inseam measurement.

  5. Refer to the diagram below to find your bike size. Probikeshop tip: depending on the road bike brand, not all sizes may be available; in that case, choose the closest size. If you are between 2 sizes, refine your choice using your height (value A in the diagram).

 Size

in m

Inseam

in cm

Frame

in cm
1,54 > 1,62 60 > 62 38
63 > 65 40
66 > 68 42
1,60 > 1,74 69 > 71 44
72 > 74 46
75 > 77 48
1,72 > 1,87 78 > 80 50
81 > 83 52
84 > 86 54
1,85 > 2,00 87 > 89 56
90 > 92 58
93 > 95 60
1.98 and above 94 > 100 62

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