Calculate your ideal bike size

Choose the correct frame

Cycling is a technical sport. A proper seating position is of great importance and some attention is needed when choosing your frame-size. Below you will find guidelines on how to choose the right frame.

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Measuring Inseam

In order to calculate the correct frame size, you should measure your inseam. Pull on your cycling shorts and socks and stand against the wall with your feet slightly apart (10-15cm). Now measure straight from your crotch to the floor. This value is to be multiplied by 0.65

Frame size = inseam x 0.65

Example given:

Inseam = 75cm
75 cm x 0,65 = 48,75 cm

Round off downwards! The perfect frame-size for this person would be 48cm.

If your theoretic frame-size is in between two available sizes, use following rules:

  • If you are a competitive cyclist or you have a sportive riding-style: choose the smaller option.
  • If you prefer a more relaxed fitting, choose the bigger option.

For sloping frames next rules apply:

  • Sloping size S corresponds with classical fitting 48-52
  • Sloping size M corresponds with classical fitting 52-56
  • Sloping size L corresponds with classical fitting 56-58
  • Sloping size XL corresponds with classical fitting 60-62


These tips will give an indication of the most suitable frame size.

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How do you measure the height of the frame?

Measure your seat tube from the bracket bearing axle until the imaginary crossing with the middle of your down tube. Please follow the instructions in the picture.

Define the correct saddle height

A correct saddle-height is at least as important as the frame size for a comfortable seating position. Take your inseam to calculate the correct saddle height. This time multiply it by 0.89. Measure this as well from the middle of the crank axle.

Saddle height = inseam x 0,89

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How about your handlebars?

How to determine your stem-size?

Place your elbow against the tip of the saddle, the tip of your middle finger should reach right until the centre of the stem. Stem-sizes can vary from 6 – 13cm of length.

How wide should my handlebars be?

This depends on the width of your shoulders. A steering wheel that is too narrow will push your shoulder blades and lungs against each other and a too wide one will oppose fluent steering and above that you will experience a stinging pain between your shoulders after a while. This size is measured from the centre of the curves and varies from 38 to 44cm.