A Common Sense Guide to Bicycles

Road Bike Size Sheet

Source: www.ebicycles.com

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Use this information as a starting point when shopping for a bicycle.

Rider Details

Adult, male

Height (H)

  • 5' 5"
  • 65"
  • 165 cm

Leg Length (I)

  • 30"
  • 76 cm
Adult, male

Road Bike Frame

Road bikes are measured in centimeters regardless of the style, although some manufacturers may use inches.

Frame Measurement

This is the length of the seat tube, measured from the center of bottom bracket to top of the seat tube. Center to Top C-T:

Road Bike Center to Top
Road Bike

52 cm

20.5"

More sizes to consider:

50cm, 51cm, 52cm, 53cm

20", 20.5", 21"

Crank Sizes

Longer cranks give you more leverage, while shorter cranks allow you to pedal faster. Cranks are measured from the center of the axle to the center of the pedal hole (L).

Bicycle Crank
  • 170 mm

DISCLAIMER: There are NO GUARANTEES with the information provided here. Every rider is different. Consult your local bike shop for a professional fitting or size recommendation.

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