PeanutButterBreath said:The "ease" and "advantage" mostly apply to manufacturers and sellers of bicycle equipment.
This is the same logic that was used against disk brakes for XC racing. everyone uses disks now. It took time but they figured out a way to get the weight almost there and performance sold peoole. honestly I thought Vbrakes were good enough. I guess I was in the minority.PeanutButterBreath said:Mechanicals are much heavier than cantis so even if you could build a disc fork with a weight on par with something like the 430g Easton, it would have to be significantly lighter or you would still gain weight. Even if you could build a 200g disc fork, someone would take the same miracle technology and build a canti version which could be used with 200+g per wheel lighter rim brakes. Discs will never compete with rim brakes on weight unless it becomes possible to use some exclusive property of disc braking to make frames, forks and rims significantly lighter than those compatible with rim braking.
Of course, you could argue that the UCI weight restrictions create a niche for discs by preventing rim brakes from competing on weight to their true potential. But we could reasonably assume that if the UCI approves disc brakes it will be open to lowering the weight min., since disc bikes would have to be under built relative to rim brake bikes to compete on weight. If this happens, discs are stuck once again with a weight penalty.
If not, there is still the matter of price. BB7s are about $40 cheaper than Paul Neo Retros. However, I can combine by Neo Retro with a sub $100 fork that weighs 650g for a $200 brake & fork combo that weighs under 800g. The BB7 weighs 350g. I don't know of a $140, 450g disc fork and I doubt one will ever be available at that price. True, there are lighter hydraulic brakes that could be adapted if the UCI ban lifts, but they are still significantly heavier than light cantis.
As far as performance, I submit that rim brakes are fine for racing, with the possible exception of that one turn in that one race where video shows the entire field stacking up in to a sharp corner at the bottom of a muddy hill. There were no disc brake bikes shown for comparison, so we can't know whether they would have fared better or simply overpowered the tire's grip and met the same fate.
And disc brakes won't keep mud from gumming up your drivetrain, so their advantage as far as required bike changes is moot.
So really, other than being interesting from a techno geek standpoint, this modern view of yours does nothing to develop the sport other than drive up cost. Which is fine if you sell bicycle equipment and/or have extra money laying around.