Do you really need a new wheel just to get more friction applied?
Well, you either need a new $2k onboard resistance device, or you need to ride a little bit faster. On a road bike on the flat, going from 25mph to 27.5mph is about the change you'd have to make to add 100W
I like the idea but I wouldn't buy it. Sometimes it's not practical to ride faster to get to the power levels required. You could probably just use a parachute like runners do, no?
Do you really need a new wheel just to get more friction applied?