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Determine the optimal frame size for your youth bike

1. Measure step length

Please measure your inside leg length from the sole (without shoes) to the crotch.

Depending on body size and sex, the crotch length of an adult is between about 65 cm and 95 cm.

2. Calculate the frame size

Enter your step length in cm:

If the calculated value is between two frame sizes
  • For a more agile, sporty driving experience choose the smaller bike
  • For a more quiet, touring-oriented experience choose the larger bike
Don't have a tape measure?

Use this table and take your body size as a clue.

Your height
in cm
Recommended Frame Size
in cm (inches)
145-155 cm33-35 cm (13"-14" inches)
155-165 cm35-38 cm (14"-15" inches)
165-170 cm38-41 cm (15"-16" inches)
170-175 cm41-43 cm (16"-17" inches)
175-180 cm43-46 cm (17"-18" inches)
180-185 cm46-49 cm (18"-19,5" inches)
185-190 cm49-53 cm (19,5"-21" inches)

Please note:
These recommendations are only a guidance. The ratio of leg length and upper body length can vary greatly.

Find your perfect Youth Bike now!

Check out our selection of Youth Bikes here.

Find more information here