I agree. I lost interest when I read that there’s only 30mm tire clearance.

Quite a few. But it’s more about where the caliper mount is located than the actual brake itself. For ex, on one of my rim brake bikes, the rear SRAM Force could easily clear a 35, just because of how the bridge is positioned on the seatstays.

It also depends on how wide the rim is. The wider the rim, the less height the tire has when mounted and inflated, and therefore the easier the caliper clearance becomes.

Generally, I’ve found SRAM and Cane Creek EE calipers will clear a 30c regardless of the variables above. Shimano, not so much.

Meant to say “isn’t cluttered”