Sapim Email:
Hello, I am considering CX-Spokes for a wheel using a Stans Arch rim. This rim has a maximum spoke tension of 1000N. I've been told that CX-Ray spokes need to be built to much higher spoke tension (1200N+) in order to function properly.
Can you confirm or deny this?
Will I have any problems with CX-Rays tensioned at 1000N?
Yes indeed, the best way to assemble a wheel with cx-ray spokes is to work with higher tensions. Tensions of + 130 kg on the gear side of the rear wheel and + 120 kg on the disc side of the front wheel or + 100 kg for a race wheel or MTB without disc.
The lifetime of the spoke will decrease if you use tensions below the advised ones. Also the stability of the wheel will not be that good. It has everything to do with the high elasticity of the spokes.
I would not recommend to use cx-ray spokes on a rear wheel with tensions below the 130 kg ( on the gear side).
1000 N spoke tension on the rim. Are you sure that the rim can’t hold more? This means that the rims is not a strong rim. We often see this kind of strengths on single walled city rims. Double walled aluminum rims are in general perfect to use with these higher tensions. Softest alu rims are limited to 120 kg. The higher qualities often from 120 up to 150 kg. The very good ones even more.
Best regards
Wim
DT Email:
Hello, I am considering Aerolite spokes for a wheel using a Stans Arch rim. This rim has a maximum spoke tension of 1000N. I've been told that Aerolite spokes need to be built to much higher spoke tension (1200N+) in order to function properly. Can you confirm or deny this? Will I have any problems with Aerolites tensioned at 1000N? Thank you for time
Hello
First of all thank you for your interest in our products.
Regarding your question I can confirm you E-Mail. The spoke tension on wheels build with aerolite spokes should be higher.
When you will build a wheel with less tension the stability will not be high enough when riding corners as the lateral stiffness of a bladed spoke will be less then at a round spoke.
Have a nice day and enjoy riding your bike.
Freundliche Grusse / Regards / Salutations
Friso Lorscheider
Int. Service & Race Support Manager
DT Swiss AG