Just bought myself a powertap hub from wiggle. They seem to be pretty good prices. I got an SL+ for £480 which is sold out now but they still have an Elite+ for £414.
They only have campag freehub versions left (which is maybe why they are in the sale?) so i'm going to need to swap the freehub or get some wort of magic cassette
Looking forward to getting this built into a wheel and having a play around.
They only have campag freehub versions left (which is maybe why they are in the sale?) so i'm going to need to swap the freehub or get some wort of magic cassette

Looking forward to getting this built into a wheel and having a play around.

don't waste your money and get something that is proven to work.