Thanks for all of the Reponses!
- The AIRhub Pro definitely looks like it would solve my problem. Exactly the type of thing I was looking for. But as with all things road bike the price is very impressive! I guess it makes sense because you basically have to buy a whole new wheel to go with it and the market is going to be very small for this device. Still ...Ouch!
- I have ridden my 27.5 at low pressures and put on an obnoxiously baggy jacket that basically act like a parachute. It works okay in the winter but is a no go in the summer.
- The Dynamo is an interesting idea but I think I'd need one that's at least 100 watts and I haven't seen one that goes that high.
Maybe I should consider a sprinting parachute and shorten the line to almost nothing? If I could handle how ridiculous I would look.
Thanks Again!