Tire dimensions

European Tyre and Rim Technical Organization (E T R T O)

ETRTO Engels Duits Frans Rim inside dim.(mm)
ETRTO English German French (Crochet type)
62-203 12 1/2 x 2 1/2 12 l/2 x 2 1/4 12 1/2 x 2 1/2 –
37-298 14 x 1 3/8 14x 1 3/8 350 x 35A 17 – 21
47-305 16 x 2 x1 3/4 16 x 2 x1 75/2 16 x 1.75 19 – 25
54-305 16 x 2 16 x 2 25
37-340 16 x 1 3/8 16 x 1 3/8 400 A onfort 17 – 21
47-355 18 x 2 x 1 3/4 18 x 1.75/2 18 x 1.75 19 – 25
32-357 17x 1 1/4 17x 1 1/4 15 – 19
37-387 18 x 1 3/8 18 x 1 3/8 17 – 21
35-406 20 x 1.30 20 x 1.30 17 – 21
37-406 20 x 1.35 20 x 1.35 17 – 21
47-406 20 x 2 x1 3/4 20 x 1.75/2 20 x 1.75 19 – 25
47-406 20 x 2 x 1 3/4 20 x 2 x 1 3/4 20 x 1.75 19 – 25
57-406 20 x 2.125 20 x 2.125 20 x 2.125 25
40-432 20 x 1 1/2 20 x 1 1/2 19 – 23
37-438 20 x 1 3/8 20 x 1 3/8 17 – 21
37-440 20 x 1 3/8 20 x 1 3/8 500 A onfort 17 – 21
37-451 20 x 1 3/8 BSR 20 x 1 3/8 BSR 17 – 21
47-457 22 x 1.75 19 – 25
37-489 22 x 1 3/8 22 x 1 3/8 17 – 21
37-498 22 x 1 3/8 x 1 1/4 22 x 1 1/4 x 1 3/8 17 – 21
47-507 24 x 2 x 1 3/4 24 x 1.75/2 24 x 1.75 19 – 25
50-507 24 x 1.90 24 x 1.90 24 x 1.90 21 – 25
40-534 24 x 1 1/2 24 x 1 1/2 19 – 23
37-540 24 x 1 3/8 24 x 1 3/8 600 A confort 17 – 21
32-541 24 x 1 3/8 x 1 1/4 24 x 1 3/8 x 1 1/4 600 x 32 A 15 – 19
47-559 26 x 2 x 1 3/4 26 x 1.75/2 26 x 1.75 19 – 25
50-559 26 x 1.90 26 x 1.90 26 x 1.90 21 – 25
54-559 26 x 2.00 26 x 2.00 650 x 50 25
57-559 26 x 2.125 26 x 2.125 26 x 2.125 25
20-571 26 x 3/4 26 x 3/4 650 x 20 13
23-571 26 x 7/8 26 x 7/8 650 x 23 13 – 15
40-571 26 x 1 5/8 x 1 1/2 26 x 1.75 x 1 1/2 650 x 38/40 19 – 23
47-571 26 x 1.75 26 x 1.75 650 x 44 19 – 25
54-571 26 x 1 3/4 x 2 26 x 1 3/4 650 x 50 25
37-584 26 x 1 1/2 x 1 3/8 26 x 1 3/8 x 1 1/2 650 x 35 B 17 – 21
40-584 26 x 1 1/2 26 x 1 1/2 650×38 B(650 B st 19 – 23
44-584 26 x 1 1/2 x1 5/8 26 x 1 5/8 x 1 1/2 650 B Semicomfort 19 – 25
32-590 26 x 1 3/8 x 1 1/4 26 x 1 1/4 x 1 3/8 650 x 32 A 15 – 19
37-590 26 x 1 3/8 26 x 1 3/8 650 x 35 A 17 – 21
40-590 26 x 1 3/8 x 1 1/2 26 x 1 1/2 x 1 3/8 650 x 38 A 19 – 23
42-590 26 x 1 3/8 x 1.75 26 x 1.75 x 1 3/8 650 x 40 A 19 – 23
32-597 26 x 1 1/4 26 x 1 1/4 26 x 1 1/4 15 – 19
20-622 28 x 3/4 28 x 3/4 700 x 20 13
23-622 28 x 7/8 28 x 7/8 700 x 23 13 – 15
25-622 28 x 1 28 x 1 700 x 25 13 – 17
28-622 28 x 1 5/8 x 1 1/8 28 x 1 5/8 x 1 3/4 700 x 28 13 – 19
32-622 28 x 1 5/8 x 1 1/4 28 x 1 1/4 x 1 3/4 700 x 32 15 – 19
37-622 28 x 1 5/8 x 1 3/8 28 x 1 3/3 x 1 5/8 700 x 35 17 – 21
40-622 28 x 1 5/8 x 1 1/2 28 x 1 1/2 x 1.75 700 x 38 19 – 23
47-622 28 x 1 5/8 28 x 1.75 700 x 45 19 – 25
25-630 27 x 1 27 x 1 27 x 1 13 – 17
28-630 27 x 1 1/4 Fifty 27 x 1 1/4 Fifty 27 x 1 1/4 Fifty 13 – 19
32-630 27 x 1 1/4 27 x 1 1/4 27 x 1 1/4 15 – 19
40-635 28 x 1 1/2 28 x 1 1/2 700 B Standard 19 – 23
44-635 28 x 1 1/2 x 1 5/8 28 x 1.75 x 1 1/2 700 x 42 B 19 – 25

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