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Black Diamond Series by Sky Shark
We were getting a demand for tubes that had a better look and would help prevent bridle wear from friction on lower spreaders. So we brought back our original Black Diamond series tubes. They have a very hard clear-coat paint that makes them very smooth. The tubes are the same tubes as our standard 3PT's, 5PT's and 7PT's. The only difference is we take grains, not grams of material off the tube very precisely. The amount of material in weight that is taken off is replaced by the weight of the paint. |
| Tube Specifications: more info... |
| Tube |
2PT |
3PT |
5PT |
7PT |
Nitro |
| Inches |
32.5 |
32.5 |
32.5 |
32.5 |
32.5 |
| CM |
82.6 |
82.6 |
82.6 |
82.6 |
82.6 |
| Grams |
8.0 |
12.0 |
15.0 |
20.0 |
15.0 |
| LG. End O.D. |
.285 |
.290 |
.312 |
.320 |
.328 |
| LG. End I.D. |
.234 |
.244 |
.244 |
.244 |
.285 |
| Wall |
.025 |
.023 |
.034 |
.038 |
.0215 |
| SM. End O.D. |
.206 |
.220 |
.234 |
.245 |
.252 |
| SM. End I.D. |
.168 |
.174 |
.180 |
.180 |
.205 |
| Wall |
.019 |
.023 |
.027 |
.032 |
.023 |
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Black Diamond Nitro Series by Sky Shark
We developed this tube in cooperation with Ken McNeill of Blue Moon Kites. Ken wanted a tube that was stiffer than our current 5pt to stop any wing chatter that comes with high wind flying and to create better all around performance. So the new tube has a larger diameter, different taper, and is about 15 to 20% stiffer than our current 5pt. It is also a sanded tube. This tube can also be cut from the large end as well as the small end. |
| Tube Specifications: more info... |
| Nitro Tubes |
Standard |
Strong |
| Inches |
32.5 |
32.5 |
| CM |
82.6 |
82.6 |
| Grams |
15.0 |
17.5 |
| LG. End O.D. |
.328 |
.335 |
| LG. End I.D. |
.285 |
.285 |
| Wall |
.022 |
.025 |
| SM. End O.D. |
.252 |
.255 |
| SM. End I.D. |
.205 |
.212 |
| Wall |
.024 |
.022 |
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