Frame size chart for road bikes

This chart will recommend a road bike frame size based on your leg length measurement.
Road Bike Size Chart

Measuring Your Leg Length/Inseam I

Take off your shoes. Stand against the wall. Place your feet apart. Put a book between your legs, with it's spine firmly up against your crotch. You should feel as if you are seated on a bicycle saddle. Have someone measure from the floor to the spine of the book.

Frame Measurement ST

Road bikes are measured from the center of the crank (or bottom bracket) to the top of the seat tube. Road bike frame sizing is generally measured in centimeters (cm).

Inseam (in/cm) Seat Tube (cm) Crank Size (mm) Size
25.0/64 43 165 XXS
25.5/65 44 165 XXS
26.0/66 45 165 XXS
26.5/67 46 165 XXS
27.0/69 47 165 XS
27.5/70 47 165 XS
28.0/71 48 165 XS
28.5/72 49 165-170 XS
29.0/74 50 165-170 S
29.5/75 51 165-170 S
30.0/76 52 170 S
30.5/77 53 170 S
31.0/79 54 170 S
31.5/80 54 170-172.5 M
32.0/81 55 170-172.5 M
32.5/83 56 170-172.5 M/L
33.0/84 57 172.5 M/L
33.5/85 58 172.5 L
34.0/86 59 172.5-175 L
34.5/88 60 172.5-175 XL
35.0/89 60 175 XL
35.5/90 61 175 XL
36.0/91 62 175 XL
36.5/93 63 175 XXL
37.0/94 64 175 XXL
37.5/95 65 175 XXL
38.0/96 66 175 XXL
Consult bicycle shop for a professional fitting!
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