If you want to find the right tyres for your bike, you should know the wheel diameter and width of your tyre. In case of any doubt what size you need, you can always use the size existing on your current tyre as a guide.
There are various size designations which you can find on the sidewall of the tyre. To make everything as simple as possible, we've show the tables below with the most popular size designations. You can check your size and easily convert it to any other size designation.
SIZES OF TYRES FOR MOUNTAIN BIKES
|
Type of bicycle & wheel size in the store |
|
Inches |
|
|
ETRTO |
|
Alternative name |
|
|
|
diametr |
|
width in inches |
width in mm |
|
diametr |
|
|
|
20 |
x |
1,9 - 2,25 |
47 to 57 |
- |
406 |
- |
||
|
24 |
x |
1,75 - 2,4 |
47 to 63 |
- |
507 |
- |
||
|
26 |
x |
1,5 - 2,6 |
40 to 65 |
- |
559 |
- |
||
|
26 |
x |
3,8 - 4,8 |
95 to 120 |
- |
559 |
- |
||
|
MTB 27,5“ |
27,5 |
x |
1,9 - 2,5 |
48 to 64 |
- |
584 |
650B |
|
|
MTB 27,5+ /B+ |
27,5 |
x |
2,8 - 3,2 |
67 to 79 |
- |
584 |
B+ |
|
|
29 |
x |
1,9 - 2,4 |
47 to 63 |
- |
622 |
- |
SIZE OF TYRES FOR ROAD, TRIATHLONE AND CROSS BIKES
|
Type of bicycle & wheel size in the store |
|
Inches |
|
|
ETRTO |
|
Alternative name |
|
|
|
diametr |
|
width in inches |
width in mm |
|
diametr |
|
|
|
Road and triathlon ones 28 |
28 |
x |
¾ - 1 1/8 |
18 to 28 |
- |
622 |
700x18C to 700x28C |
|
|
CX & Gravel 28 |
28 |
x |
1 – 1,6 |
28 to 42 |
- |
622 |
700x28C to 700x42C |
|
|
Road Plus |
27,5 |
x |
1,5 - 2,6 |
35 to 47 |
- |
584 |
650B |
|
|
Tria 26“ (old) |
26 |
x |
1 |
18 to 23 |
- |
551 |
650 x 18C to 650 x 23C |
SIZE OF TYRES FOR TREKKING AND CITY BICYCLES
|
Type of bicycle & wheel size in the store |
|
Inches |
|
|
ETRTO |
|
Alternatywna |
|
|
|
diametr |
|
width in inches |
width in mm |
|
diametr |
|
|
|
Trekking/city 12“ |
12 |
x |
1,75 - 2,25 |
47 to 62 |
- |
203 |
12 ½ x 1,75 to 12 ½ x 2 ¼ |
|
|
Trekkingowymiejski 14“ |
14 |
x |
1,5 - 1,75 |
38 to 47 |
- |
288 |
14 x 1 5/8 x 1 3/8 or 350 x 38A, 350 x 42A |
|
|
Trekking/city 16“ |
16 |
x |
1,5 - 2,1 |
40 to 57 |
- |
305 |
- |
|
|
Trekking/city 18“ |
18 |
x |
1,25 - 2,0 |
32 to 50 |
- |
355 |
- |
|
|
Trekking/city 20“ |
20 |
x |
0,9 - 2,25 |
23 to 57 |
- |
406 |
- |
|
|
Trekking/city 24“ |
24 |
x |
1,5 - 2,4 |
40 to 62 |
- |
507 |
- |
|
|
Trekking/city 26“ |
26 |
x |
1,0 - 2,5 |
25 to 64 |
- |
559 |
- |
|
|
Trekking/city 27,5“ |
27,5 |
x |
1,125 - 2,5 |
28 to 57 |
- |
584 |
650 x 28B to 650 x 42B |
|
|
28 |
x |
1 - 1,6 |
28 to 42 |
- |
622 |
700x28C to 700x42C |
||
|
Trekking/city 29“ |
29 |
x |
1,9 - 2,4 |
47 to 63 |
- |
622 |
- |
|
|
Trekking/city 27“ (old not used standards) |
27 |
x |
7/8 – 1/14 |
22 to 32 |
- |
630 |
27 x 7/8 to 27 x 1 ¼ |