From Bosch's website they look identical. However, they appear to weigh different. Removing the speed limitation on the CX, via a dongle, or Bosch, would effectively make the CX perform the same as the Speed. If the Speed is indeed installed on the Neo 2, it could be installed on the Lefty 3. They are the same frame. However, I have my doubts that the Neo 2 actually has the Performance Speed. I think all three models have the Performance CX. I'll wait until you pick up your bike, Alaskan, to be sure. I'm probably going to order a Neo 2, and return the Lefty 3.