Originally Posted by
zymphad
Maybe should ask why you need 30mm tubeless wider rims for more comfy ride on your hydraulic disc bike. Just saying, look into it. I'd be amazed if a 23mm rim brake steel isn't more comfy, or if say otherwise, just coping.
No sorry 23c tires are not comfortable and having rim brakes doesn't necessarily make a more comfortable bike (though disc brakes do require a stiffer fork). Wider tires at a lower pressure are going to be more comfortable generally. I love steel and titanium frame and have no interest in having aluminum or carbon frames personally but in the end I think wider tires would probably be a better maker of comfort then frame material up to a point. Certainly in vintage skinny tire department frame material will make a bigger difference but with wider tires I think it does take a little bit of that away. Not totally but enough.
For instance my 25c tire bike is less comfortable than my bikes running 28c tires with a similar position. The 3mm helps a little