I just moved to Florida where there are 0 hills compared to Massachusetts. I looked at some of the duathalon times for a few races held in my are and to be honest, they are pathetic. Averaging an 8 min mile on the run and only about 17 mph on the bike???? REALLY??? Will a tri bike really save me that much time in either a sprint or olympic distance race, or am I really going to get all the time I can get out of my road bike with aerobars due to the shortness of the race?

This is completely hypothetical right now as I dont have the $$ to go get a new bike, but I told myself if I start winning races I'd think about it. This is just pure curiosity.