Time for some new race tires. I usually run a pair GPTT (23) on an 858/Super9 combo with Vittoria latex. They are race day only wheels/tires, never had a flat but I do replace a tire any time I see a cut, etc, so they don't get that many miles on them. The TT's don't seem to make it far before showing some sort of damage. Figured with all the praises and data on the GP5k I would give it a shot on the front for the aero advantage and a little extra flat protection, since the data seems to show that up front you aren't giving up much over a GPTT. I read that the 5k is narrow but I when mounted up a 5k 23 on the 858 and it just seems maybe a little too narrow? The wheel (at the brake track) is slightly wider than the max width of the tire at 95PSI. As you can see from a straight on view the leading edge of the brake track is exposed (more than the photos show... terrible photos :-/.) Not sure if I should try a 25 (guessing too wide) or go back to the GPTT up front. Or maybe this is exactly how you want set up? Yes, overthinking things:).. but I am bored.
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Team Zoot
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Team Zoot