Building a wheel: spokes

Hello, I guess this question has been asked a billion times, so excuse me for asking it again.

With that out of the way: I want to build my first wheels and I’m slowly going insane. I want to build a gravel-ish bike and plan on using the SLX 11-Speed MTB Cassette Sprocket ([https://bike.shimano.com/en-US/product/component/slx-m7000/CS-M7000-11.html](https://bike.shimano.com/en-US/product/component/slx-m7000/CS-M7000-11.html)) and center lock disc brakes.

Going from here, I picked – more or less randomly – a front and a rear hub, as well as some rims.

* Front hub: SHIMANO CENTER LOCK Disc Brake Front Hub 100 mm Quick Release ([https://bike.shimano.com/en-US/product/component/cues-u4000/HB-QC400.html](https://bike.shimano.com/en-US/product/component/cues-u4000/HB-QC400.html))
* Rear hub: SHIMANO CENTER LOCK Disc Brake Rear FREEHUB 135 mm Quick Release 11/10/9/8-speed HG spline M ([https://bike.shimano.com/en-US/product/component/altus-m310/FH-QC400-HM.html](https://bike.shimano.com/en-US/product/component/altus-m310/FH-QC400-HM.html))
* Rims: RODI FW Disc (Dimensions: [https://rodicycling.com/wp-content/uploads/2019/06/perfil\_Freeway\_disc\_200x200.png](https://rodicycling.com/wp-content/uploads/2019/06/perfil_Freeway_disc_200x200.png))

However, I cannot seem to find out, what size (and kind) of spokes and nipples I need. I tried the calculators, but I am not really sure about it.

Additionally, if you do not like my hub or rim choices, feel free to critique them.

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I appreciate any help 🙂

(PS: I would have posted this in r/wheelbuild, but the sub seems to still be disabled)

by Speed-o-Sound_Kain