Frame size chart for mountain bikes

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

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

Inseam (in/cm)	Seat Tube (in)	Crank Size (mm)	Size
25.0/64	13	170	XXS
25.5/65	13	170	XXS
26.0/66	14	170	XXS
26.5/67	14	170	XXS
27.0/69	14	170	XS
27.5/70	15	170	S
28.0/71	15	170	S
28.5/72	15	170-175	S
29.0/74	16	170-175	S
29.5/75	16	170-175	S
30.0/76	16	175	S
30.5/77	17	175	M
31.0/79	17	175	M
31.5/80	17	175	M
32.0/81	18	175	M
32.5/83	18	175	M
33.0/84	19	175	L
33.5/85	19	175-180	L
34.0/86	19	175-180	L
34.5/88	20	180	L
35.0/89	20	180	L
35.5/90	20	180	L
36.0/91	21	180	XL
36.5/93	21	180	XL
37.0/94	21	180	XL
37.5/95	22	180	XL
38.0/96	22	180	XL

Consult bicycle shop for a professional fitting!