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Yeah, I get that. I'm just wondering whether anyone has actually tried riding down a hill on a wide and narrow set of tyres and compared the difference. I reckon that unless you're going in a straight line on perfect tarmac, the fat tyres might have an edge.
Late but I've done a route with a nice descent on both my road bikes - one with 25mm Pro Ones the other with 40mm semi-slick Maxxis Re-fuses, both tubeless. Hit the exact same max speed (49.5 mph). I run the 40mm tires at ~50psi and it doesn't feel slower, gets a nice sustainable rhythm on the flats and deals with random dirt roads much better. I'd like to replace both these bikes with one fitted with ~32-35mm tires and guards.
Yeah, I get that. I'm just wondering whether anyone has actually tried riding down a hill on a wide and narrow set of tyres and compared the difference. I reckon that unless you're going in a straight line on perfect tarmac, the fat tyres might have an edge.