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Guys im looking at building another wheel and wondered if anyone who knows what they are doing could check the spoke size I need please. Hub is a love mud juice boost dynamo, flange dia 58.5mm,flange to centre is 29mm. Rim is a dt swiss m502 29" erd 602mm. Not quite sure how to work it out and if the boost bit makes a difference. Many thanks in advance
boost does make a difference because it's wider, although that will still be reflected in the left and right flange offfset, which you don't quote above.
Use the wheel pro spoke calculator, which is the most reliable IMO
Just stick the dimensions into a spoke calculator, Wheel Pro, DT Swiss, Pro Wheel Builder etc.
Assuming the above dimensions are correct and flanges are symetrical due to disc and dynamo then 32h 3x 291.2