I'd primarily agree that getting smaller tyres is the easiest option... but on one of my bikes I've ground a significant amount of metal off the central knuckle of the brake in order to achieve a working clearance. Used a bench grinder and a half-round bastard file.
I'm sure some boring old fart might want to explain to you how foolish that is, but it worked for me, my brake still works many many miles later and the sky hasn't fallen down yet.
I'd primarily agree that getting smaller tyres is the easiest option... but on one of my bikes I've ground a significant amount of metal off the central knuckle of the brake in order to achieve a working clearance. Used a bench grinder and a half-round bastard file.
I'm sure some boring old fart might want to explain to you how foolish that is, but it worked for me, my brake still works many many miles later and the sky hasn't fallen down yet.