No thanx. What kind of tires are you running? It should be more bumpy as the psi increases so why would I want to up the psi? The Neo Gens are plenty cushiony with their soft, pliable beef so I'm not "bumping" down the road anymore. Night and day difference between the ride with the 450s and the Neo Gens. It feels like I have gone back to a 50 series sidewall.
Not to mention I don't wish to get within 10 psi of the max pressure on the tire. Not the best idea.
