New Carbon Spokes For All Regular Bicycle Hubs
1.Advantages of carbon spokes compared to other materials spokes:
| Carbon(270mm) | Steel(Pillar 1420) | Titanium | ||
Weight | Value(g) | 2.9 | 4.3 | 3.7 |
| Comparison(%) | - | +48.28% | +27.59% | |
| Tensile Strength | Value(kg) | 321.7 | 285 | 272 |
| Comparison(%) | - | -11.41% | -15.45% | |
| Breaking Strength | Value(kg) | 99.9 | 95 | 82 |
| Comparison(%) | - | -4.90% | -17.92% | |
| Tensile Deformation | Value(mm) | 4 | 4.6 | 4.8 |
| Comparison(%) | - | +15.00% | +20.00% |
2.Available Spoke Length:
Available Spoke Length | 264mm | 273mm | 280mm | 290mm | 300mm |
| 265mm | 274mm | 281mm | 292mm | 301mm | |
266mm | 275mm | 282mm | 293mm | 302mm | |
| 267mm | 276mm | 283mm | 294mm | ||
| 268mm | 277mm | 285mm | 295mm | ||
| 269mm | 278mm | 286mm | 296mm | ||
| 279mm | 287mm | 297mm | |||
| 288mm | 298mm | ||||
| 289mm | 299mm |
3.Test Items:
| Test Item | Description | Value | Test Standard | Picture |
Tensile Strength | Used to test spokes under ultimate tension condition | Tension: 300kg ↑ | Fix the spokes on the universal testing machine and stretch them vertically until they are broken. Test values above 300kg are ok | |
Breaking strength | Test the single spoke under pressure condition | Force：90kg ↑ | Fix the spokes on the fixture and pull 120kg tension，use universal test machine pressure at spoke 60mm until broken.The test value above 90kg is ok |
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| Spoke tension static fatigue | Used to test the static tension of spoke | Tension：250kg Time：3 days | Fix the spokes on the fixture and pull 250kg tension,check for changes after 3 days | |
Carbon spoke for wheel fatigue test | Simulate the dynamic fatigue state of the wheel set riding on the road | Lord：75kg Speed：20km/H Time：8H | Pump the tires on the rim to 100psi，It is fixed on the machine and applied with 75kg weight bearing. The speed is set at 20km/H and the time is set at 8H.On the test drum for the simulated road surface, there are four 15mm high blocks.After 8 hours of testing, the spokes were not damaged and the tension did not decrease significantly |  |
Impact test | Simulate the impact state of the wheel during cycling | 1st impact：41J 2nd impact：61J 3rd impact：88J | The wheel is fixed on the impact machine，With 11.5kg impact hammer, the impact energy is 41J for the first impact，the second impact is 61J, and the third impact is 88J.The spokes undamaged after impact was ok. | |
Static pressure of wheel set | It is used to test the change of the wheel set at the side under fixed pressure | Force：150kg | Apply 150kg pressure on the side of universal testing machine for 5 times.The spokes undamaged after testing was ok. |  |
4.Wheel Building Method( CS-001 Regular Carbon Spokes Need Special Tools and Ways to do Wheel Building like below):
5.FAQ About CS-001 Regular Carbon Spokes
-1) Can the carbon spokes cross with each other like steel spokes?
-Yes, 2x cross, or 3x corss all ok.
-2) What is the suggestion spoke tension for this carbon spoke?
-Suggestion spoke tension is 110~130 kgf
-3) Can the carbon spokes used for MTB or Gravel Bikes?
-No, currently this carbon spoke mainly design for road racing.
-4) This carbon spoke are straight pull and J-bend both available?
-Yes, both straight pull and J-bend are available.
-5) What is the warranty for this carbon spoke?
-1 year.
-6) What is the production technology for this regular carbon spoke?
-We used embedded technology to combine the spoke the metal end parts, there is no glue inside them
-7) What is the MOQ of CS-001 carbon spoke?
-No MOQ limit, 1 pcs order is also acceptable.
-8) What is the price of CS-001 carbon spoke?
-Price depends on the order quantity, generates from 8-5 USD/PCS.
