Big Bike Book Size Guide
Please note that the size charts below are a guide to assist you when shopping on Big Bike Book and are not a guarantee of correct fitment.
How to Correctly Measure Your Head
Using a soft measuring tape, measure around the crown of your head at the largest diameter. Start approximately 2cm above your eyebrows, ensuring the tape is positioned above the ears and around the back of your head at the largest point. The size guide below will help determine which helmet size you need.
Helmet Size Guide
Brand |
XXS |
XS |
S |
M |
L |
XL |
XXL |
XXXL |
Airoh |
51-52 |
53-54 |
55-56 |
57-58 |
59-60 |
61-62 |
63-64 |
N/A |
Caberg |
51-52 |
53-54 |
55-56 |
57-58 |
59-60 |
61-62 |
63-64 |
N/A |
Shoei |
51-52 |
53-54 |
55-56 |
57-58 |
59-60 |
61-62 |
63-64 |
65-66 |
Spada |
51-52 |
53-54 |
55-56 |
57-58 |
59-60 |
61-62 |
63-64 |
N/A |
SPADA
Men's Jackets
Size |
XS |
S |
M |
L |
XL |
2XL |
3XL |
4XL |
5XL |
INCHES |
38 |
40 |
42 |
44 |
46 |
48 |
50 |
52 |
54 |
CM |
96.5 |
101.5 |
107 |
112 |
117 |
122 |
127 |
132 |
137 |
Ladies' Jackets
Size |
XS |
S |
M |
L |
XL |
2XL |
3XL |
4XL |
5XL |
UK |
8 |
10 |
12 |
14 |
16 |
18 |
20 |
22 |
24 |
INCHES |
32 |
34 |
36 |
38 |
40 |
42 |
44 |
46 |
48 |
CM |
81 |
86 |
91 |
96 |
102 |
107 |
112 |
117 |
122 |
Men's Trousers
Size |
S |
M |
L |
XL |
2XL |
3XL |
4XL |
WAIST |
28 |
30 |
32 |
34 |
36 |
38 |
42 |
Ladies' Trousers
Size |
8/XS |
10/S |
12/M |
14/L |
16/XL |
18/2XL |
20/3XL |
INCHES |
26 |
28 |
30 |
32 |
34 |
36 |
38 |
CM |
65 |
70 |
75 |
80 |
85 |
90 |
95 |
Men's Gloves
Size |
XS |
S |
M |
L |
XL |
2XL |
CM |
11 |
11.5 |
12 |
12.5 |
13 |
13.5 |
Ladies' Gloves
Size |
XS |
S |
M |
L |
XL |
2XL |
CM |
10 |
10.5 |
11 |
11.5 |
12 |
12.5 |
Boots
EUR |
36 |
37 |
38 |
39 |
40 |
41 |
42 |
43 |
44 |
45 |
46 |
47 |
48 |
49 |
50 |
UK |
3 |
4 |
5 |
5.5 |
6 |
7 |
8 |
9 |
9.5 |
10.5 |
11 |
12 |
12.5 |
13.5 |
14 |
The chart measurements pertain to the glove itself, not the hand. We suggest allowing approximately 2-3cm between the actual hand measurement and the glove size, taking into account the internal lining of the glove.
For instance, for men: If a customer's hand measures 10cm across the palm, they would need Spada size M (mens) gloves, as size M corresponds to 12cm.
SPIDI
Men's Jacket
Size |
S |
M |
L |
XL |
2XL |
3XL |
4XL |
UK |
38 |
40 |
42 |
44 |
46 |
48 |
50 |
EUR |
48 |
50 |
52 |
54 |
56 |
58 |
60 |
Ladies' Jacket
Size |
XS |
S |
M |
L |
XL |
2XL |
UK |
8 |
10 |
12 |
14 |
16 |
18 |
Men's Textile Trouser
Size |
S |
M |
L |
XL |
2XL |
3XL |
UK WAIST |
31-33 |
33-35 |
35-37 |
37-40 |
40-42 |
42-44 |
EUR |
46 |
48 |
50 |
52 |
54 |
56 |
Men's Leather Trousers
UK WAIST |
31-33 |
33-34 |
34-36 |
36-37 |
37-39 |
39-41 |
41-42 |
EUR |
44 |
46 |
48 |
50 |
52 |
54 |
56 |
Ladies' Textile Trouser
Size |
XS |
S |
M |
L |
XL |
2XL |
3XL |
UK HIP " |
33-35 |
35-37 |
37-38 |
38-40 |
40-42 |
42-44 |
44-47 |
EUR |
40 |
42 |
44 |
46 |
48 |
50 |
52 |
Men's Gloves
Size |
XS |
S |
M |
L |
2XL |
3XL |
EUR |
7 |
8 |
9 |
9.5 |
10 |
10.5 |
CM |
20.6/21.4 |
21.4/22.2 |
22.2/23.0 |
23.0/23.8 |
23.8/24.6 |
24.6/25.4 |
Ladies' Gloves
Size |
XS |
S |
M |
L |
XL |
2XL |
3XL |
EUR |
6 |
6.5 |
7 |
8 |
9 |
9.5 |
11 |
CM |
19/19.8 |
19.8/20.6 |
20.6/21.4 |
21.4/22.2 |
22.2/23 |
23/23.8 |
24.6/25.4 |
Racesuits
UK |
38 |
40 |
42 |
44 |
46 |
48 |
EUR |
46 |
48 |
50 |
52 |
54 |
56 |
SIDI
Boots
EUR |
36 |
37 |
38 |
39 |
40 |
41 |
42 |
43 |
44 |
45 |
46 |
47 |
48 |
49 |
50 |
UK |
3 |
4 |
5 |
5.5 |
6 |
7 |
8 |
9 |
9.5 |
10.5 |
11 |
12 |
12.5 |
13.5 |
14 |