Speaking of manufacturer recommendations, it’s interesting how Conti’s lower psi recommendation for the 5K TL is 65psi for both 28c and 32c sizes but jumps up to 80psi for 25c.
The new 2020 Schwalbe Pro One TL Easy (the one with “souplesse” whatever that means
but it is getting good early press) has a 70-110psi range for its 25c size. It drops down to 55-95 for 28c and 55-80 for 30c
I have greatly preferred the GP5K TL to any other tire I’ve ridden (Bontrager, Mavic Yksion UST, grand sport race). But I’m tempted to try out the new Pro Ones when they become more widely available and come down from their $81 per tire price. Seems they’re too new for anyone to mark them down just yet. I pay about $55 per tire for the 5K TL and that’s about right in my view for the price/performance ratio.