I agree beatr911 but I didn't mean in stock form. What I meant by a base was it could probably be a 100mpg bike for the challenge with some aerodynamic modifications.
I didn't know about the cbr125rr, if it comes with FI, it should be an even better platform. However, even if Honda isn't releasing it for the US market, Aprilia is releasing a 125cc based on looking like a small scale RSV4. This one has great potential.
2012 Aprilia RS4 125 Photo Gallery - Motorcycle USA
Doug