The major differences between a triathlon bike and a road bike is the geometry of the frame — more specifically, the seat tube angle. A triathlon bike has a much larger seat tube angle (76 to 78 ...

Triathlon specific bikes started to become part of our sport about 20 years ago. Designed around the use of aero- (or tri-) bars, triathlon-specific bikes use a steeper seat tube angle to allow you to ...