Bike Sizing Guides
Clothing sizing guide
Bike Sizing Help
Found the perfect bike but puzzled by complex sizing? We’re here to help with the following guide. All you need is your height in feet & inches (1″ = 2.54cm, 12″ = 1′) & your inside leg measurement in inches & we’ll help you pick the right size.
Bike geometry – The essential knowledge
Geometries vary based on intended use & manufacturer preferences, most of the figures define the ride & handling characteristics of the bike. The main figures you need to consider when choosing a size are:
- Seat tube length/frame size
- Top tube length
- Standover height
Specialist use bikes such as downhill, dirt jump, BMX & 4X are sized to be smaller in proportion to the rider & often come in short, medium or long sizes.
How find the correct frame size
Manufacturer recommendations are based on your height with an assumed “standard” inside leg. If your inside leg is outside of the assumed range, you may be required to adjust the size of frame accordingly.
Standover clearance is essential to prevent injury during a fast dismount. You should allow at least 1″-2″ of clearance, for full suspension bikes this figure should be slightly more.
To work out the stand over clearance, just subtract the standover measurement (found on the details tab of product descriptions or on the manufacturer’s website) from your inside leg measurement. If there is not enough clearance, consider going down a size.
Tips & tricks for getting the perfect fit
If you find yourself sitting between sizes or have recently purchased a slightly wrong sized bike, there are a few tricks to help tweak the fit of the bike. You can try some of the following ideas:
- Moving the saddle on its rails
- Fitting a longer/shorter stem
- Changing handlebar position
Information & help
This guide is intended as a general sizing guide. Bike sizes vary by manufacturer, so for the most accurate information please visit the manufacturer’s website. If you still require additional help, contact us & we’ll endeavour to help.
Mountain Bikes
| Height |
Inside Leg |
Frame Size |
Size |
| 4’10 – 5’10″ |
26″ – 28″ |
13″ |
|
| 5’0″ – 5’3″ |
27″ – 29″ |
14″, 15″ |
X Small |
| 5’4″ – 5’7″ |
28″ – 30″ |
16″, 17″ |
Small |
| 5’8″ – 5’9″ |
29″ – 31″ |
18″, 19″ |
Medium |
| 5’10″ – 5’11″ |
30″ – 32″ |
20″ |
Large |
| 6’0″ – 6’2″ |
32″ – 34″ |
21″ |
|
| 6’2″ – 6’4″ |
33″ – 35″ |
22″ |
X Large |
| 6’4″+ |
36″+ |
24″ |
XX Large |
Road Bikes
| Height |
Inside Leg |
Frame Size |
Size (Compact) |
| 5’1″ – 5’3″ |
27″ – 29″ |
48cm |
X Small |
| 5’3″ – 5’5″ |
28″ – 30″ |
50cm |
X Small – Small |
| 5’5″ – 5’7″ |
29″ – 31″ |
52cm |
Small |
| 5’7″ – 5’9″ |
30″ – 32″ |
54cm |
Medium |
| 5’9″ – 5’11″ |
31″ – 33″ |
56cm |
Medium – Medium/Large |
| 5’11″ – 6’2″ |
32″ – 34″ |
58cm |
Medium/Large – Large |
| 6’2″ – 6’3″ |
33″ – 35″ |
60cm |
Large |
| 6’3″ – 6’5″ |
34″ – 36″ |
62cm |
X Large |
Hybrid Bikes
| Height |
Inside Leg |
Frame Size |
| 5’0″ – 5’1″ |
26″ – 28″ |
15″ |
| 5’2″ – 5’3″ |
27″ – 29″ |
16″ |
| 5’4″ – 5’5″ |
28″ – 30″ |
17″ |
| 5’6″ – 5’7″ |
29″ – 31″ |
18″ |
| 5’8″ – 5’9″ |
30″ – 32″ |
19″ |
| 5’10″ – 5’11″ |
32″ – 33″ |
20″ |
| 6’0″ – 6’2″ |
33″ – 34″ |
21″ |
| 6’0″ – 6’2″ |
34″ – 35″ |
22″ |
| 6’2″ – 6’4″ |
35″ – 36″ |
23″ |
Kids’ Bikes
| Rider Age |
Inside Leg |
Wheel Size |
| 2.5 – 4 Years |
13″ – 15″ |
12″ |
| 3.5 – 5 Years |
15″ – 17″ |
14″ |
| 4.5 – 6.5 Years |
17″ – 19″ |
16″ |
| 5.5 – 7 Years |
18″ – 20″ |
18″ |
| 7 – 9 Years |
19″ – 23″ |
20″ |
| 9 – 11.5 Years |
24″ – 27″ |
24″ |
Ladies’ Bikes
Ladies’ Mountain/Hybrid Bikes
| Height |
Frame Size |
Size |
| 4’10″ – 5’1″ |
13″ – 14″ |
X Small |
| 5’2″ – 5’6″ |
15″ – 16″ |
Small |
| 5’6″ – 5’10″ |
17″ – 18″ |
Medium |
| 5’10″ – 6’1″ |
19″+ |
Large |
Ladies’ Road Bikes
| Height |
Frame Size |
Size |
| 4’10″ – 5’1″ |
44cm – 46cm |
XX Small |
| 5’1″ – 5’3″ |
47cm – 49cm |
X Small |
| 5’3″ – 5’5″ |
50cm – 52cm |
Small |
| 5’5″ – 5’8″ |
53cm – 55cm |
Medium |
| 5’8″ – 5’10″ |
56cm – 57cm |
Large |
Shoes
| Euro |
36 |
37 |
38 |
39 |
40 |
41 |
42 |
43 |
44 |
45 |
46 |
47 |
48 |
| UK |
3.5 |
4 |
5 |
6 |
6.5 |
7 |
8 |
9 |
10 |
10.5 |
11 |
12 |
13 |
Gloves
Men’s Gloves
| Size |
Hand Size |
| S |
19-23cm |
| M |
20-24cm |
| L |
21-25cm |
| XL |
22-26cm |
| XXL |
27cm+ |
Women’s Gloves
| Size |
Hand Size |
| S |
13-15cm |
| M |
15-18cm |
| L |
18-20cm |
| XL |
20-23cm |
| XXL |
23cm+ |
Kid’s Gloves
| Size |
Hand Size |
| S |
Age 5-6 |
| M |
Age 7-8 |
| L |
Age 9-10 |
Altura
Men’s Jerseys & Jackets
| Size |
Chest Size |
Sleeve Length |
| XS |
34″-35″ |
87-90cm |
31″ |
79cm |
| S |
36″-37″ |
91-94cm |
32″ |
81cm |
| M |
38″-40″ |
95-101cm |
33″ |
83cm |
| L |
41″-43″ |
102-109cm |
33.5″ |
85cm |
| XL |
44″-46″ |
111-117cm |
34″ |
87cm |
| XXL |
47″-48″ |
119-123cm |
35″ |
89cm |
| XXXL |
49″-51″ |
124-129cm |
36″ |
91cm |
Men’s Shorts & Trousers
| Size |
Waist Size |
Inside Leg |
| XS |
24″-26″ |
61-67cm |
28″ |
70cm |
| S |
27″-29″ |
68-74cm |
29″ |
74cm |
| M |
30″-32″ |
75-82cm |
31″ |
79cm |
| L |
33″-35″ |
83-89cm |
32″ |
81cm |
| XL |
36″-38″ |
90-97cm |
33″ |
84cm |
| XXL |
39″-41″ |
98-104cm |
34″ |
85.5cm |
Women’s Shorts & Trousers
| Size |
Waist Size |
Hips Size |
Inside Leg |
| 8 |
26″ |
66cm |
35″ |
88cm |
28″ |
71cm |
| 10 |
28″ |
71cm |
36.5″ |
92cm |
29″ |
74cm |
| 12 |
30″ |
76cm |
38″ |
96cm |
30″ |
76cm |
| 14 |
32″ |
81cm |
40″ |
101cm |
31″ |
79cm |
| 16 |
34″ |
86cm |
42″ |
106cm |
32″ |
81cm |
| 18 |
36″ |
91cm |
44″ |
111cm |
33″ |
83cm |
Kid’s Jackets & Jersey
| Size |
Height |
Chest Size |
Waist Size |
| Age 5-6 |
110-116cm |
24″ |
61cm |
16″ |
40cm |
| Age 7-9 |
112-134cm |
26.5″ |
67cm |
18″ |
46cm |
| Age 12 |
140-153cm |
31.5″ |
80cm |
21″ |
53.5cm |
Kid’s Shorts & Trousers
| Size |
Height |
Waist Size |
Hip Size |
Inside Leg |
| Age 5-6 |
110-116cm |
21.5″ |
55cm |
25″ |
64cm |
21″ |
53cm |
| Age 7-9 |
112-134cm |
24″ |
61cm |
28″ |
72cm |
24.5″ |
62cm |
| Age 12 |
140-153cm |
27.5″ |
70cm |
32.5″ |
83cm |
27″ |
69cm |
Five Ten
Men’s
| Euro |
33 |
34 |
34.5 |
35 |
35.5 |
36 |
37 |
37.5 |
38 |
39 |
39.5 |
40 |
41 |
| US |
2 |
2.5 |
3 |
3.5 |
4 |
4.5 |
5 |
5.5 |
6 |
6.5 |
7 |
7.5 |
8 |
| UK |
1 |
1.5 |
2 |
2.5 |
3 |
3.5 |
4 |
4.5 |
5 |
5.5 |
6 |
6.5 |
7 |
| Euro |
41.5 |
42 |
42.5 |
43 |
44 |
44.5 |
45 |
46 |
46.5 |
47 |
48 |
48.5 |
49.5 |
| US |
8.5 |
9 |
9.5 |
10 |
10.5 |
11 |
11.5 |
12 |
12.5 |
13 |
13.5 |
14 |
15 |
| UK |
7.5 |
8 |
8.5 |
9 |
9.5 |
10 |
10.5 |
11 |
11.5 |
12 |
12.5 |
13 |
14 |
Women’s
| Euro |
33 |
34 |
34.5 |
35 |
35.5 |
36 |
37 |
37.5 |
38 |
39 |
39.5 |
40 |
41 |
41.5 |
42 |
42.5 |
| US |
3.5 |
4 |
4.5 |
5 |
5.5 |
6 |
6.5 |
7 |
7.5 |
8 |
8.5 |
9 |
9.5 |
10 |
10.5 |
11 |
| UK |
1 |
1.5 |
2 |
2.5 |
3 |
3.5 |
4 |
4.5 |
5 |
5.5 |
6 |
6.5 |
7 |
7.5 |
8 |
8.5 |
Buff
| Head Size |
Buff Needed |
| 45/51cm |
Baby Buff |
| 50-55cm |
Junior Buff |
| 53-62cm |
Original Buff |
Dare2b
Men’s Tops
| Size |
Chest Size |
| XS |
36″ |
92cm |
| S |
38″ |
97cm |
| M |
40″ |
102cm |
| L |
42″ |
107cm |
| XL |
44″ |
112cm |
| XXL |
46″ |
119cm |
Men’s Trousers
| Size |
Waist Size |
Inside Leg |
| XS |
30″ |
76cm |
31″ |
| S |
32″ |
81cm |
31″ |
| M |
33-34″ |
84-86cm |
31″ |
| L |
36″ |
92cm |
31″ |
| XL |
38-40″ |
97-102cm |
31″ |
| XXL |
42-44″ |
107-112cm |
31″ |
Men’s Base Layers
| Size |
Waist Size |
Chest Size |
| S/M |
32″-34″ |
38″-40″ |
| L/XL |
36″-40″ |
42″-44″ |
| XL/XXL |
42″-48″ |
47″-50″ |
Women’s Tops
| Size |
Chest Size |
| XS (8) |
32″ |
81cm |
| S (10) |
34″ |
86cm |
| M (12) |
36″ |
92cm |
| L (14) |
38″ |
97cm |
| 16 (XL) |
40″ |
102cm |
| 18 (XXL) |
42″ |
107cm |
Women’s Trousers
| Size |
Waist Size |
Inside Leg |
| XS (8) |
26″ |
66cm |
29″ |
| S (10) |
28″ |
71cm |
29″ |
| M (12) |
30″ |
76cm |
29″ |
| L (14) |
32″ |
81cm |
29″ |
| XL (16) |
34″ |
86cm |
29″ |
| XXL (18) |
36″ |
92cm |
29″ |
Women’s Base Layers
| Size |
Waist Size |
Chest Size |
| S/M |
24″-26″ |
32″-34″ |
| L/XL |
28″-30″ |
36″-38″ |
| XL/XXL |
32″-36″ |
40″-42″ |
Endura
Men’s
| Size |
Chest Size |
Waist Size |
| XS |
34″-35″ |
87-91cm |
27″-29″ |
71-75cm |
| S |
36″-38″ |
92-98cm |
30″-32″ |
76-83cm |
| M |
39″-41″ |
99-106cm |
33″-35″ |
84-90cm |
| L |
42″-44″ |
107-113cm |
36″-38″ |
91-97cm |
| XL |
45″-47″ |
114-121cm |
39″-41″ |
98-105cm |
| XXL |
48″-50″ |
122-127cm |
42″-44″ |
106-112cm |
Women’s
| Size |
Chest Size |
Waist Size |
| XS (8/10) |
34″-35″ |
87-91cm |
27″-29″ |
71-75cm |
| S (10/12) |
36″-38″ |
92-98cm |
30″-32″ |
76-83cm |
| M (12/14) |
39″-41″ |
99-106cm |
33″-35″ |
84-90cm |
| L (14/16) |
42″-44″ |
107-113cm |
36″-38″ |
91-97cm |
| XL (16/18) |
45″-47″ |
114-121cm |
39″-41″ |
98-105cm |
Fox Racing
Men’s
| Size |
Chest |
Sleeve |
Waist |
Inseam |
| XS |
32″-33″ |
31″ |
26″-28″ |
30″ |
| S |
33″-35″ |
31.5″-32.5″ |
28″-30″ |
30″-30.5″ |
| M |
36″-39″ |
32.5″-33.5″ |
31″-33″ |
30.5″-31″ |
| L |
40″-42″ |
33.5-34.5″ |
34″-36″ |
31″-31.5″ |
| XL |
43″-46″ |
34.5″-35.5″ |
38″-40″ |
31.5″-32″ |
| XXL |
47″-50″ |
35.5″-36.5″ |
42″-44″ |
32″-32.5″ |
| XXXL |
52″-54″ |
35.5-36.5″ |
46″-48″ |
32″-32.5″ |
Women’s
| Size |
Chest |
Sleeve |
Waist |
Hip |
Inseam |
| XS |
32″ |
28.5″ |
24″ |
34″ |
29″ |
| S |
33″-34″ |
29″-29.5″ |
25″-26″ |
35″-36″ |
29″-29.5″ |
| M |
35″ |
30″ |
27″ |
37″ |
29.5″ |
| L |
36.5″ |
30.5″ |
28.5″ |
38.5″ |
30″ |
| XL |
38″-39.5″ |
31″-31.5″ |
30″-31.5″ |
40″-41.5″ |
30″-30.5″ |
Gore
Men’s
| Size |
Chest |
Arm |
Waist |
Hip |
Inseam |
| S |
83-88cm |
76.5-78cm |
73-78cm |
85-90cm |
78-79cm |
| M |
89-94cm |
79-80.5cm |
79-84cm |
91-96cm |
80-81cm |
| L |
95-100cm |
81.5-83cm |
85-90cm |
97-102cm |
82-83cm |
| XL |
101-106cm |
84-85.5cm |
91-96cm |
103-108cm |
84-85cm |
| XXL |
107-112cm |
86.5-88cm |
97-102cm |
109-114cm |
86-87cm |
| XXXL |
113-118cm |
89-90.5cm |
103-108cm |
115-120cm |
88-89cm |
Women’s
| Size |
Chest |
Arm |
Waist |
Hip |
Inseam |
| XS |
77-80cm |
71cm |
61-64cm |
86-89cm |
80cm |
| S |
81-84cm |
72cm |
65-68cm |
90-93cm |
80cm |
| M |
85-88cm |
73cm |
69-72cm |
97cm |
80cm |
| L |
89-92cm |
74cm |
73-76cm |
98-101cm |
80cm |
| XL |
93-96cm |
75cm |
77-80cm |
102-105cm |
80cm |
| XXL |
97-100cm |
76cm |
81-84cm |
106-109cm |
80cm |
Shimano
| Euro |
38 |
39 |
40 |
41 |
42 |
43 |
44 |
45 |
46 |
47 |
48 |
| UK |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
10 |
11 |
12 |
13 |
Specialized
Men’s
| Size |
Chest |
Waist |
Hip |
Inseam |
Sleeve |
Height |
| S |
35″-37″ |
28″-31″ |
36″-38″ |
30″ |
31-32″ |
5’7″-5’9″ |
| M |
38″-40″ |
31″-33″ |
38″-40″ |
31″ |
34″-35″ |
5’9″-5’11″ |
| L |
41″-44″ |
33″-35″ |
40″-43″ |
32″ |
35″-36″ |
5’11″-6’1″ |
| XL |
45″-48″ |
35″-38″ |
43″-46″ |
33″ |
36″-37″ |
6’1″-6’3″ |
Women’s
| Size |
Chest |
Waist |
Hip |
Inseam |
Dress |
Height |
| XS |
31″-33″ |
23″-26″ |
35″ |
28″ |
2-4 |
4’9″-5’3″ |
| S |
33″-35″ |
26″-28″ |
35″-38″ |
28″-29″ |
6-8 |
5′”-5’5″ |
| M |
35″-37″ |
28″-30″ |
38″-40″ |
29″-30″ |
10-12 |
5’5″-5’7″ |
| L |
37″-39″ |
30″-32″ |
40″-43″ |
30″-31″ |
14-16 |
5’7″-5’9″ |
