I picked up a pair of these for 40.00 shipped with prime. They are awesome! Lugs are just shy of 5/8". Hopefully they wear well. My son clocks at least 5 miles everyday. He is a trooper. Even when it's in the teens, he is out there riding. The tires are SunF A051 power II 145/70-6. Very robust and a lot firmer than all of the tires we have used in the past. We always go with 6 ply because of the speeds he goes (54mph), but he wears them down quick. He gets just about a month out of a rear tire. We will see how well these do. Btw, he thinks these are badass.