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A Quality O-Ring Chain At An Affordable Price
The SRO series chain offer a value-priced O-ring chain that will not compromise on quality or
durability. Features include lightening holes* ,high-tech heat-treated steel alloys and all the exact
same quality and craftsmanship that EK puts into their entire product line.
Chain |
Pen |
Roller |
Plate Thickness |
Tensile |
| Dia |
Length |
Dia |
Inner |
Outer |
Strength |
| (mm) |
(mm) |
(mm) |
(mm) |
(mm) |
(lbs.) |
(kN) |
| 420SRO |
3.96 |
17.30 |
7.77 |
1.5 |
1.5 |
4,300 |
19.1 |
| 428SROZ |
4.50 |
20.80 |
8.51 |
1.8 |
1.8 |
5,300 |
23.5 |
| 520SRO6 |
5.38 |
19.95 |
10.16 |
2.0 |
2.0 |
8,500 |
37.8 |
| 525SROZ2 |
5.38 |
22.35 |
10.20 |
2.2 |
2.2 |
9,000 |
40.0 |
| 530SROZ2 |
5.38 |
24.00 |
10.20 |
2.2 |
2.2 |
9,000 |
40.0 |
| 630SRO |
5.95 |
25.15 |
11.91 |
2.4 |
2.4 |
10,120 |
45.0 |
Chain |
Wear Life |
Weight |
Disp. |
Standard Connecting Link |
Optional Connecting Link |
| Index |
100 Links |
Max CC's |
| Std. As 100 |
(lbs.) |
(kg) |
Street |
Dirt |
| 420SRO |
1,000 |
1.71 |
0.78 |
100 |
100 |
SKJ |
- |
| 428SROZ |
1,000 |
2.27 |
1.03 |
250 |
200 |
SKJ |
- |
| 520SRO6 |
1,000 |
3.46 |
1.57 |
650 |
650 |
MLJ |
SKJ |
| 525SROZ2 |
1,000 |
4.10 |
1.86 |
750 |
650 |
MLJ |
- |
| 530SROZ2 |
1,000 |
4.32 |
1.96 |
900 |
750 |
MLJ |
- |
| 630SRO |
1,000 |
5.90 |
2.68 |
1,000 |
NA |
MLJ |
- |
* 420SRO and 428SROZ do not utilize lightening holes
* Gold available : 520SRO5, 525SROZ and 530SROZ
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