[ezmaass]

As an update to this thread, I'll say I've now tested this theory with the RFTs in two extreme directions. Indeed, if you start inflating into the 40's (~42psi), the ride becomes harsher again, similar to when it drops too low (low 30's).

I've found that around 38 PSI up front and around 40 PSI in the rear is a sweet spot on my 19" Goodyear A/S RFTs. Don't get me wrong - they're still incredibly TERRIBLE tires, and this is but a bandaid that makes them feel slightly more acceptable.

I believe what's happening here:

- The RFT technology is designed to keep the sidewall stiff when the tire loses pressure. When the tire's pressure is low (e.g. 30 - 32 PSI), hitting a pothole allows the sidewall to flex more and eventually hits the point of NO flex. Whatever material is in the tire to keep the sidewall stiff must take the impact. If feels terrible.

- When the tire is too heavily inflated, as expected, it becomes much too firm. It doesn't necessarily feel as bad as under-inflated, but it's stiff and harsh.

In my testing/experience, the sweet spot is still roughly as stated here. Again, it's still nowhere near acceptable - the RFTs are terrible. This adjustment, however, has just helped make it a little LESS terrible in the time being.

I'm debating whether I replace them with non-RFTs. If I decide to keep the 650 long term, this will be a must. I'm just debating whether I keep the 650 or move on to something else.