CM	EU	UK	US
23.7	38.5	5.5	6
24.1	39	6	6.5
24.5	40	6	7
25	40.5	6.5	7.5
25.4	41	7	8
25.8	42	7.5	8.5
26.2	42.5	8	9
26.7	43	8.5	9.5
27.1	44	9	10
27.5	44.5	9.5	10.5
27.9	45	10	11
28.3	45.5	10.5	11.5
28.8	46	11	12
29.2	47	11.5	12.5
29.6	47.5	12	13
30	48	12.5	13.5
30.5	48.5	13	14

WOMENS

CM	EU	UK	US
22	35.5	2.5	5
22.4	36	3	5.5
22.9	36.5	3.5	6
23.3	37.5	4	6.5
23.7	38	4.5	7
24.1	38.5	5	7.5
24.5	39	5.5	8
25	40	6	8.5
25.8	41	7	9.5
26.2	42	7.5	10
26.7	42.5	8	10.5
27.1	43	8.5	11
27.5	44	9	11.5
27.9	44.5	9.5	12

KIDS

CM	EU	UK	US
20.1	32	13.5	1Y
20.4	33	1	1.5Y
20.8	33.5	1.5	2Y
21.2	34	2	2.5Y
21.6	35	2.5	3Y
21.9	35.5	3	3.5Y
22.3	36	3.5	4Y
22.7	36.5	4	4.5Y
23.1	37.5	4.5	5Y
23.4	38	5	5.5Y
23.8	38.5	5.5	6Y
24.2	39	6	6.5Y
24.6	40	6	7Y

MENS

CM	EU	UK	US
22.1	36	3.5	4
22.5	36.7	4	4.5
22.9	37.3	4.5	5
23.3	38	5	5.5
23.8	38.7	5.5	6
24.2	39.3	6	6.5
24.6	40	6.5	7
25	40.7	7	7.5
25.5	41.3	7.5	8
25.9	42	8	8.5
26.3	42.7	8.5	9
26.7	43.3	9	9.5
27.1	44	9.5	10
26.6	44.7	10	10.5
28	45.5	10.5	11
28.4	46	11	11.5
28.8	46.7	11.5	12
29.3	47.3	12	12.5
29.7	48	12.5	13
30.1	48.7	13	13.5
30.5	49.3	13.5	14
31	50	14	14.5
31.4	50.7	14.5	15
31.8	51.3	15	16
32.6	52.7	16	17
33.5	53.3	17	18

WOMENS

CM	EU	UK	US
22.1	36	3.5	5
22.5	36.7	4	5.5
22.9	37.3	4.5	6
23.3	38	5	6.5
23.8	38.7	5.5	7
24.2	39.3	6	7.5
24.6	40	6.5	8
25	40.7	7	8.5
25.5	41.3	7.5	9
25.9	42	8	9.5
26.3	42.7	8.5	10
26.7	43.3	9	10.5
27.1	44	9.5	11
27.6	44.7	10	11.5
28.5	45.3	10.5	12
28.4	46	11	12.5
28.8	46.7	11.5	13
29.3	47.3	12	13.5
29.7	48	12.5	14
30.1	48.7	13	14.5
30.5	49.3	13.5	15
31	50	14	15.5
31.4	50.7	14.5	--
31.8	51.3	15	--
32.6	52.7	16	--
33.5	53.3	17	--

KIDS

CM	EU	UK	US
16.6	10k	10.5k	28
17	10.5k	11k	28.5
17.4	11k	11.5k	29
17.8	11.5k	12k	30
18.3	12	12k	30.5
18.7	12.5k	13k	31
19.1	13k	13.5k	31.5
19.5	13.5k	1	32
20	1.0	1.5	33
20.4	1.5	3	33.5
20.8	2.0	2.5	34
21.2	2.5	3	35
21.6	3	3.5	35.5
22.1	3.5	4	36
22.5	4.0	4.5	36.7
22.9	4.5	5	37.3
23.3	5.0	5.5	38
23.8	5.5	6	38.7
24.2	6	6.5	39.3
24.6	6.6	7	40
25	7.0	7.5	40.7

MENS

CM	EU	UK	US
22.5	36	3.5	5.5
23	37	4	6
23.5	37.5	4.5	6.5
24	38	5	7
24.5	39	5.5	7.5
25	39.5	6	8
25.25	40	6.5	8.5
25.5	40.5	7	9
26	41.5	7.5	9.5
26.5	42	8	10
27	42.5	8.5	10.5
27.5	43.5	9	11
28	44	9.5	11.5
28.25	44.5	10	12
28.5	45	10	11
29	46	10.5	11.5
29.5	46.5	11	12

WOMENS

CM	EU	UK	US
22	35.5	2.5	5
22.4	36	3	5.5
22.9	36.5	3.5	6
23.3	37.5	4	6.5
23.7	38	4.5	7
24.1	38.5	5	7.5
24.5	39	5.5	8
25	40	6	8.5
25.4	40.5	6.5	9
25.8	41	7	9.5
26.2	42	7.5	10
26.7	42.5	8	10.5
27.1	43	8.5	11
27.5	44	9	11.5
27.9	44.5	9.5	12

KIDS

CM	EU	US
17	27	K10
17.5	28.5	K11
18.5	30	K12
19.5	31.5	K13
20	32.5	1
20.5	33	1.5
21	33.5	2
21.5	34.5	2.5
22	35	3
22.25	35.5	3.5
22.5	36	4
23	37	4.5
23.5	37.5	5
24	38	5.5
24.5	39	6
25	39.5	6.5
25.5	40	7

MENS

CM	EU	UK	US
24	38	5	6
24.5	38.5	5.5	6.5
25	39	6	7
25.5	40	6.5	7.5
26	40.5	7	8
26.5	41	7.5	8.5
27	42	8	9
27.5	42.5	8.5	9.5
28	43	9	10
28.5	44	9.5	10.5
29	44.5	10	11
29.5	45	10.5	11.5
30	46	11	12
31	46.5	11.5	12.5
32	47	12	13
33	48.5	13	14

WOMENS

CM	EU	UK	US
22	35.5	3	5.5
22.5	36	3.5	6
23	37	4	6.5
23.5	37.5	4.5	7
24	38	5	7.5
24.5	38.5	5.5	8
25	39	6	8.5
25.5	40	6.5	9
26	40.5	7	9.5
26.5	41	7.5	10
27	42	8	10.5
27.5	42.5	8.5	11

KIDS

EU	UK	US
28	10	11
30	11	12
31	12	13
32	13	1
33	13.5	1.5
33	1	2
34	1.5	2.5
34.5	2	3
35	2.5	3.5
35.5	3	4
36	3.5	4.5
37	4	5
37.5	4.5	5.5
38	5	6
38.5	5.5	6.5
39	6	7

MENS

CM	EU	UK	US
22	36	3.5	4
22.5	37	4	4.5
23	37.5	4.5	5
23.5	38	5	5.5
24	38.5	5.5	6
24.5	39.5	6	6.5
25	40	6.5	7
25.5	40.5	7	7.5
26	40.5	7	7.5
26	41.5	7.5	8
26.5	42	8	8.5
27	42.5	8	9
27.5	43	9	9.5
28	44	9.5	10
28.5	44.5	10	10.5
29	45	10.5	11
29.5	45.5	11	11.5
30	46.5	11.5	12
30.5	47	12	12.5
31	47.5	12.5	13
32	49	13.5	14
33	50	14.5	15
34	51	15.5	16

WOMENS

CM	EU	UK	US
20	33	1	3
20.5	33.5	1.5	3.5
21	34	2	4
21.5	34.5	2.5	4.5
22	35	3	5
22.5	36	3.5	5.5
23	36.5	4	6
23.5	37	4.5	6.5
24	37.5	5	7
24.5	38	5.5	7.5
25	39	6	8
25.5	40	6.5	8.5
26	40.5	7	9
26.5	41	7.5	9.5
27	41.5	8	10
27.5	42.5	8.5	10.5
28	43	9	11
28.5	43.5	9.5	11.5
29	44	10	12
29.5	45	10.5	12.5
30	45.5	11	13

KIDS

CM	EU	UK	US
17	28.5	10.5	11
	29	11	11.5
18	30	11.5	12
	30.5	12	12.5
19	31	12.5	13
	32	13	13.5
	32.5	13.5	1
20	33	1	1.5
	33.5	1.5	2
21	34.5	2	2.5
	35	2	3
21.2	2.5	3	35
21.5	35.5	3	3.5
22	36	3	4
22.5	37	4	4.5
23	37.5	4.5	5
23.5	38	5	5.5
24	38.5	5.5	6
24.5	39	6	6.5

MENS

EU	UK	US
34.5	2.5	3.5
35	3	4
36	3.5	4.5
36.5	4	5
37	4.5	5.5
38	5	6
38.5	5.5	6.5
39	6	7
40	6.5	7.5
40.5	7	8
41	7.5	8.5
42	8	9
42.5	8.5	9.5
43	9	10
44	9.5	10.5
44.5	10	11
45	10.5	11.5
46	11	12
47	12	13
48	13	14
49	14	15
50	15	16

WOMENS

EU	UK	US
34.5	2.5	5
35	3	5.5
36	3.5	6
36.5	4	6.5
37	4.5	7
38	5	7.5
38.5	5.5	8
39	6	8.5
40	6.5	9
40.5	7	9.5
41	7.5	10
42	8	10.5
42.5	8.5	11

KIDS

EU	UK	US
33	2	2.5
35	3	4
36.5	4	5
38	5	6
39	6	7

MENS

CM	EU	UK	US
24.1	39.5	6.5	6.5
24.5	40	7	7
24.9	41	7.5	7.5
25.3	41.5	8	8
25.8	42	8.5	8.5
26.2	42.5	9	9
26.6	43	9.5	9.5
27	44	10	10
27.4	44.5	10.5	10.5
27.9	44	11	11
28.3	46	11.5	11.5
27.7	46.5	12	12
n/a	47	12.5	12.5
29.1	48	13	13
n/a	48.5	13.5	13.5
30.4	49	14	14

WOMENS

CM	EU	UK	US
21.1	35	3	5
21.9	36	3.5	3.5
22.4	36.5	4	6
22.8	37	4.5	6.5
23.2	37.5	5	7
23.2	38	5.5	7.5
23.6	39	6	8
24.1	39.5	6.5	8.5
24.5	40	7	9
24.9	41	7.5	9.5
25.3	41.5	8	10
25.8	42	8.5	10.5
26.2	42.5	9	11
26.6	43	9.5	11.5
27	44	10	12
27.4	44.5	10.5	12.5
27.9	45	11	13
28.3	46	11.5	13.5

KIDS

CM	EU	UK	US
17.3	27	10	10.5
17.7	28	10.5	11
18.2	28.5	11	11.5
18.6	29	11.5	12
19	30	12	12.5
19.4	31	12.5	13
19.8	31.5	13	13.5
20.3	32	13.5	1
20.7	33	1	1.5
21.1	33.5	1.5	2
21.5	34	2	2.5
22	35	2.5	3

ONE SIZE

ADD TO WISHLIST

Product Description

The Sport Girl 9 helmet is a children's mountain bike helmet with a wide range of possibilities. Thanks to its adjustable dial, be sure to find the size you need. Suitable for ages 4 to 12.

Genuine Product

Fast Delivery

Free Returns & Exchange

recent searches

Recommended brands

Trending products