Gap Measurements - Standard Cages

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 millimeter. Note: These measurements reflect the position where the two cage pins are fully pressed into the base ring slots. The true gap of your device may slightly increase if the cage pins are not fully pressed into the slots.

We also have tables with gap measurements for our Narrow and Wide cages.

Baby Cobra

Ring Size	XD	Standard	Curved
0	5 mm	7 mm	12 mm
1	7 mm	9 mm	13 mm
2	9 mm	11 mm	15 mm
3	12 mm	13 mm	17 mm
4	15 mm	16 mm	19 mm
5	18 mm	19 mm	22 mm
6	20 mm	21 mm	24 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	15 mm
3	11 mm	13 mm	17 mm
4	14 mm	15 mm	19 mm
5	16 mm	18 mm	21 mm
6	19 mm	20 mm	23 mm
7	22 mm	23 mm	26 mm

(top)

---

Cobra N+

Ring Size	XD	Standard	Curved
0	7 mm	9 mm	14 mm
1	7 mm	9 mm	14 mm
2	8 mm	10 mm	15 mm
3	9 mm	12 mm	16 mm
4	11 mm	13 mm	18 mm
5	14 mm	16 mm	19 mm
6	16 mm	18 mm	21 mm
7	19 mm	20 mm	24 mm

(top)

---

Cobra S

Ring Size	XD	Standard	Curved
0	7 mm	9 mm	14 mm
1	7 mm	9 mm	14 mm
2	7 mm	10 mm	14 mm
3	8 mm	10 mm	15 mm
4	10 mm	12 mm	16 mm
5	12 mm	14 mm	18 mm
6	14 mm	16 mm	20 mm
7	17 mm	18 mm	22 mm

(top)

---

Cobra S+, R

Ring Size	XD	Standard	Curved
0	7 mm	9 mm	14 mm
1	7 mm	9 mm	14 mm
2	7 mm	9 mm	14 mm
3	8 mm	10 mm	15 mm
4	10 mm	12 mm	16 mm
5	12 mm	14 mm	18 mm
6	14 mm	16 mm	20 mm
7	17 mm	18 mm	22 mm

(top)

---

Cobra R+

Ring Size	XD	Standard	Curved
0	7 mm	9 mm	14 mm
1	7 mm	9 mm	14 mm
2	7 mm	9 mm	14 mm
3	8 mm	10 mm	15 mm
4	10 mm	12 mm	16 mm
5	12 mm	13 mm	18 mm
6	14 mm	15 mm	19 mm
7	16 mm	18 mm	21 mm

(top)

---

Cobra BFG

Ring Size	XD	Standard	Curved
0	7 mm	10 mm	14 mm
1	7 mm	9 mm	14 mm
2	7 mm	9 mm	14 mm
3	8 mm	10 mm	15 mm
4	9 mm	11 mm	16 mm
5	11 mm	13 mm	17 mm
6	13 mm	15 mm	19 mm
7	16 mm	17 mm	21 mm