I would like to get some sapim spokes but all the online calculators online are failing me because I cant find all the data points they ask: https://www.sapim.be
is there an easy way to do that? Should I order the components first and measure them myself? (I felt that is kinda risky as I want to make sure everything would be compatible first)
For the dynamo, a drawing can be found on the manufacturer's website: here
I can't find anything on the rear hub right now, you will just need to measure it yourself. As long as the spoke hole count matches, compatibility shouldn't be an issue.