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Calling all wheel builders. I need help with spoke length
I managed to spectacularly pull a spoke nipple straight through the rear rim on my commuter last week. It looks like someone has shot a bullet through the rim, consequently the rim is cactus and needs replacing. It was a cheap (OEM) rim on a cheap (OEM) hub so don't want to replace it at great expense with something super light and expensive. Because the hub is still ok I've decided to save a few $$$ and have a go at building a wheel myself. However I am having trouble determining which spoke lengths I need. The DT Swiss 'spoke calculator' is messing with my noodle as I can't find all the measurements it requires.
The details are:
Rim - Mavic XM117
ETRTO compatible size: 559 x 17
Recommended nipple length: 12 mm
Recommended rim tape: 559 x 18 x 0.6
Valve hole diameter: 8.5 mm
Hub
Shimano FH-M475 (PDF tech sheet)
Any help would be greatly appreciated.
Thanks
Phil
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Im guessing the details that you are missing are:
spoke hole diameter: (id guess that it is ~2.5mm)
number of spokes: 32 or 36 (id guess 32)
number of intersections: 3 (from memory 3 is the strongest layout, someone else may correct me on this)
i calculated 263/262mm (left/right) using that information.
Ps enjoy lacing the rim as its lots of fun the first time! (sarcasm intended)
Beer makes it more enjoyable.