Originally Posted by
GhostRider62
Let's say I own a $50,000 stable of rim brake equipped bikes and wheels.
Why would I replace them with $80,000 of disc brake equipped bikes?
The thought of filling up the landfills breaks my heart.
WRT to claims that discs have no aero disadvantage, my perusal of Tour Magazin results says otherwise. It is small, 2-6 watts but clearly there are cost(s) to changing to disc brakes. The only bike that I would like to have discs is on my recumbent because I hit very high speed, discs would make sense on that bike. Upgrade others? Not compelling.
Nobody is asking you to replace all your rim brake bikes. But if, for whatever reason, you felt the need to add to your $50k stable you could always try discs for a change.
The aero difference between rim/disc brakes is very marginal and there are signs it is starting to swing in favour of discs as frame design becomes more optimised around them. Even Pinarello are now moving in that direction.