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Re: Goldix 21-spoke 2:1 spoke ratio disc hubs
Quote from: dsveddy on February 20, 2024, 06:22:28 PM
Hi all,

I've found some centerlock hubs by Goldix on AliEx designed for 21-spokes and 2:1 lacing patterns, that is 14 crossed spokes on rear drive-side and 7 radial spokes on the rear non-drive-side, and 14 crossed spokes on the front non-drive (disc) side and 7 radial on the drive-side:

https://www.aliexpress.us/item/3256805026812998

https://www.aliexpress.us/item/3256805132784998

These are the same lacing principle as Campagnolo G3 or Fulcrum's wheels, which is designed to even spoke tensions across drive and non-drive sides. It appeals to me, because in my mind I think it means I can get away with fewer spokes and have just as strong of a wheel. Also, when I spec these hubs with Pilar wing 20s and high-spec Deerobust rims, I get STUPID light weight predictions, like under 1350g for 55mm rim, or under 1300g for a 50mm rim.

The questions I want to field here:

Do people think these should be laced as a 3x or 2x pattern on the crossed sides? When I model it up in solidworks (embarrassingly, I found this easier than calculating the spoke lengths), the spokes come out of the hubs straigtest when laced 3x.

Do we think there is anything dangerous about going to 21 steel spokes, on say, a 50 or 55mm rim? I see that campag runs 24 spokes on their WTO rims, and I'm wondering if that's because 21 spokes is simply not going to be stiff. I want to hear your thoughts.

Thanks in advance for your advice.

Your links don't work on my smartphone and i must admit i am too lazy to copy the article numbers.
I guess the Goldix hubs you mention are straight pull. So you are not even free to choose.
They are 3x crossed on the 14 spokes side. I don't know how you do the solid works but give you a hint: have a very precise look on where the straight pull flange positions are, because this will create such a big error in the calculation, that you need to buy new spokes....
February 23, 2024, 04:40:00 PM 		1
Re: L-Twoo, Sensah or 105? First thing: you have to decide if you want to go with our without front derailleur. The common style for road bike is with front derailleur, which gives you a large range of gears with small steps in-between the gears.

Second: without any judgment on quality and reliability, Sensah, Ltwoo and Shimano follow very different styles of shifting.
Sensah is equal to Sram. Only one lever does the shifting in both directions.
Shimano uses two levers. One for up, the other one for down.
Ltwoo uses one lever and one thumb shifter like Campagnolo does.
You see.. your choice influences not only the spent money.   ;)

 
February 24, 2024, 04:53:35 PM 		1