Full Member
Join Date: Apr 2019
Location: Northern NJ
Posts: 419
Bikes: 1987 Pinarello Montello, 1996 Litespeed Classic, 1996 Colnago Master Light, 1997 Litespeed Ultimate, 2006 Opera Leonardo FP, 2006 Pinarello Paris FP, 1984 Pinarello Record, 89-ish Cornelo Profilo
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I was all set to pull the trigger on a pair of GP5000s when I sliced the sidewall on my 4000s II back tire today. Not a big slice, maybe .030" but enough to give me a slow flat and mandate a Cliff Shot wrapper boot. Sigh. I found a couple of pairs of new yellow 3000s (one of 20s, the other of 23s) in my bike closet the other day. Gonna see if they're still usable and use them up. Otherwise, I'm thinking I stick with the Gastorskins.
The sidewalls of the 4000s remind me of the Michelins I used to ride in the early 90s until I got a 1" slice and had to limp home for 50 miles with a powerbar wrapper boot. I switched to the original Conti GPs and never had an issue. You could slice up the sidewalls and have threads sticking out fo the sidewall and they would just keep on going. Never lost one to a sidewall cut. I used to square off the rears pretty fast - that's what comes of 700x20 tires at 150 psi - and have to rotate tires often but it was worth it.