[davidw]

This seems a bit extreme. My take:

* Mountain bikes are better with them. I hate the low tolerances in terms of adjusting the damn things though.

* I guess they're better with carbon rims on road bikes?

* But the 'limiting factor' in stopping a road bike in most cases is the road/tire contact patch, not the brakes. I can lock up a road bike just fine with caliper brakes.

[trentnix]

Carbon rims (prior to 2016 or so) were notorious for offering a poor braking experience and you ran the risk of overheating the brake surface on big descents and potentially delaminating the carbon rim. Better wheels and pads were manufactured, resulting in a much better experience when riding on higher quality wheels.

No mistake, disc brakes offer better braking power and a superior braking experience to rim brakes but the difference is nowhere as big as it used to be.

[threeseed]

> they're better with carbon rims on road bikes

Carbon rims are becoming more popular across cycling not just on road.

They are stronger, lighter, less fragile and the quality is improving such that I bought a pair with a lifetime warranty.

And carbon rims are worse than aluminium with calliper brakes especially in wet weather conditions.

[davidw]

I have carbon rims on my MTB, and I think disk brakes there generally seem like a decent idea. The rims are more exposed to mud and muck, and the added stopping power is nice.

I'm less convinced about road bikes though.