Originally Posted by southpawboston

I've always been confused by this logic, yet I've heard it before. My own intuition tells me that lower pressure reduces flats (other than pinch flats, which have nothing to do with tread penetration), because you have more surface area of the tire making contact with the ground, and less pressure per square inch that a sharp object can exert on the tread.



I wondered about that, but from what I've read, most Cerfs start out around 27mm and stretch to 29, so it should be good. Plus if they stretch to 30, they'll still fit.





Yeah, sounds like a good plan. I keep a patch kit/tube/pump with me at all times, so I guess it really comes down to just not liking the anticipation of a flat.