Another factor(s) for pedal strike - when cornering: Pedal width, construction and Q-factor; ie how far apart the pedals are. Low bottom bracket bikes with wide pedals or pedals that are deep at the outside will strike early and often. I had two fix gears over the years that were old Peugeot frames. I ran sewups or clinchers of similar size that replaced 27" wheels. I struck pedals on a regular basis on both bikes. (All my Leotard platforms had their left dustcaps unscrewed and lost as well as the right dustcaps scavenged off retired pedals.) They hit so early it wasn't scary because I wasn't even into a full bank. I also used to hit speed bumps, sometimes quite hard. I called those bikes "slinkies".

Ben