How to Size a Bicycle and Bicycle Seat to Fit the Rider

Properly sizing a bicycle assists and protects the rider from injuries and enhances the enjoyment of bicycling.

Steps

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    Determine the inseam. Take a pair of pants that fit and do not drag on the ground. Measure the seam that is on the inside of the leg, from the crotch stitching to the bottom of the leg. That measurement is the inseam.
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    Measure the bar from the top straight down to the ground. A properly fitting bicycle will measure 1-2 inches / 2.5–5cm longer than the inseam measurement. Standing flat on the ground, the bar should almost touch the crotch.
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    Measure from the bottom of the seat to the top of the pedal in the lower position. This proper seat measurement should be 1-2 inches/ 2.5–5cm shorter than the inseam measurement. The leg should almost be fully extended, without locking the knee.
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    Try another method. An alternative seat measurement may be performed by the rider sitting on the bike and pedaling until one foot can extend almost as far as it is able to go.

Tips

  • The rider should not be able to stand on the ground while still in the seat.
  • If the knee touches your belly or chest, the seat is too low!

Warnings

  • Never adjust the seat out farther than the mark on the seat pole.

Article Info

Categories: Bicycles | Bicycling