On this page, you can find the gap measurement for each combination of Standard Cobra cage, ring size, and ring style. For general information about ring sizes check-out our
base ring size guide.
All gap measurements are rounded to the nearest mm.
We also have tables with our
Narrow and
Wide gap measurements.
Baby Cobra
Ring Size |
XD |
Standard |
Curved |
0 |
5 mm |
7 mm |
13 mm |
1 |
7 mm |
9 mm |
14 mm |
2 |
9 mm |
11 mm |
16 mm |
3 |
12 mm |
13 mm |
18 mm |
4 |
15 mm |
16 mm |
20 mm |
5 |
17 mm |
19 mm |
22 mm |
6 |
20 mm |
21 mm |
25 mm |
7 |
23 mm |
24 mm |
27 mm |
(top)
Cobra N
Ring Size |
XD |
Standard |
Curved |
0 |
5 mm |
8 mm |
13 mm |
1 |
7 mm |
9 mm |
14 mm |
2 |
9 mm |
11 mm |
16 mm |
3 |
11 mm |
13 mm |
17 mm |
4 |
14 mm |
15 mm |
20 mm |
5 |
16 mm |
18 mm |
21 mm |
6 |
19 mm |
20 mm |
24 mm |
7 |
22 mm |
23 mm |
26 mm |
(top)
Cobra N+
Ring Size |
XD |
Standard |
Curved |
0 |
7 mm |
9 mm |
15 mm |
1 |
7 mm |
9 mm |
15 mm |
2 |
8 mm |
10 mm |
16 mm |
3 |
9 mm |
12 mm |
17 mm |
4 |
11 mm |
13 mm |
19 mm |
5 |
14 mm |
16 mm |
20 mm |
6 |
16 mm |
18 mm |
22 mm |
7 |
19 mm |
20 mm |
25 mm |
(top)
Cobra S, S+, R
Ring Size |
XD |
Standard |
Curved |
0 |
7 mm |
9 mm |
15 mm |
1 |
7 mm |
9 mm |
15 mm |
2 |
7 mm |
10 mm |
15 mm |
3 |
8 mm |
10 mm |
16 mm |
4 |
10 mm |
12 mm |
18 mm |
5 |
12 mm |
14 mm |
19 mm |
6 |
14 mm |
16 mm |
21 mm |
7 |
17 mm |
18 mm |
23 mm |
(top)
Cobra R+
Ring Size |
XD |
Standard |
Curved |
0 |
7 mm |
9 mm |
15 mm |
1 |
7 mm |
9 mm |
15 mm |
2 |
7 mm |
9 mm |
15 mm |
3 |
8 mm |
10 mm |
16 mm |
4 |
10 mm |
12 mm |
17 mm |
5 |
12 mm |
13 mm |
19 mm |
6 |
14 mm |
15 mm |
20 mm |
7 |
16 mm |
18 mm |
22 mm |
(top)
Cobra BFG
Ring Size |
XD |
Standard |
Curved |
0 |
7 mm |
9 mm |
16 mm |
1 |
7 mm |
9 mm |
15 mm |
2 |
7 mm |
9 mm |
15 mm |
3 |
8 mm |
10 mm |
16 mm |
4 |
9 mm |
11 mm |
17 mm |
5 |
11 mm |
13 mm |
18 mm |
6 |
13 mm |
15 mm |
20 mm |
7 |
16 mm |
17 mm |
22 mm |
(top)
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