Is there any way to check a powertap hub is firing. I built up a mtb wheel over the weekend and couldn't get my garmin to detect it. That was just twisting the freehub in my hand though.
Spinning it should be enough. If it's not been found before though it could take a while (like a minute) for detection so mount it in your truing stand and spin it. Got batteries in it?
Is there any way to check a powertap hub is firing. I built up a mtb wheel over the weekend and couldn't get my garmin to detect it. That was just twisting the freehub in my hand though.