Re: 24 hole drilling and powertap hub: advice, ple: Bikefanclub.com

Dear Pintsized
I can say that the offset it just makes the spoke length different. It isn't any kind of compatibility issue. Rather than have the holes in the middle of the rim, the holes are on one side a bit more than the other. The idea is that it helps make the wheel a bit stronger. I think Sun might also make rims in 'odd' drilling sizes. Of course Zipp makes 24 spoke drillings, too, and I would also check DT Swiss.
Powertap's internals are kind of low quality from what I hear, but probably fine for training on and watts are the way to go, I think, for many types of training, and for tracking progress.
Hubs with dish - that is any wheel that has a cogset - not a fixed gear or singlespeed wheel. To make room for the gears, the wheel is not centered over the hub's axle, but offset. For elucidation on these types of things, Sheldon Brown's site is usually 'the bomb.' www.sheldonbrown.com

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