Yeah! (Sorry, not going to help. I intend to ride all my GP4s over the rest of my life.) But those rims and Vitt G whatevers in the largest reasonable size (25c for my Pro Miyata with the distinctive DiaComp brakes with the slanted housing entry - any "normal" brake limits the rear to 23c) - what a ride! Yes, not cushy; not with 110 psi in back, but totally confidence inspiring.

Last year I rode the last week long Cycle Oregon on that bike and tires. Day 2, coming down a coast range descent at probably 45 on the less traveled Option route, I encountered 20 to 30 feet of gravel where the pavement had been neatly removed. 1" down, bump along, 1" back. I shut down to about 30 mph and hung on. Bike hit the gravel and it was "no big deal. ("I'd do this for 10 miles, any day.") Hit the ending 1" lip, popped back onto pavement, shrugged its shoulders and just said "Next?" Me? "This bike's a winner. These wheels are winners! (Oh yeah, I used to race these things back in New England. BTDT. I knew this.)"