Originally Posted by
Branko D
While pros ride what they are sponsored to ride, the impetus to stop making frames rim brake compatible comes from consumers overwhelmingly buying disc brake bikes.
^^^This. Has nothing to do with what the pros ride.
Just go look at any of the major manufacturers website for road bikes. All but the low end (sub $1000) models are disc brakes.
Discs are superior in every way. If they weren't, rim brakes would be sticking around but they aren't. They are slowing being phased out. Same reason disc brakes replaced drum brakes in the automotive industry and why motorcycles use disc brakes.
This is a simple concept that some die hards have a hard time understanding.