I tried searching for the answer to this question elsewhere on these forums... couldn't find exactly what I was looking for...
I haven't ridden in 30 years... just got a Trek 7.5 FX... awesome bike... however the only thing I found disconcerting about my first ride was how jarring it was, as I hit every bump or rut on the local paved bike path. When my LBS set the bike up, the tech mentioned he pumped the tires to 105 PSI. Since riding the bike 4 more times, I've discoverd that I get a very comfortable ride with the tires at 75 PSI.
So the question is, how low can I go on a 110 max psi tire, inflated to only 75 lbs, before problems arise? Most everything I've read on these forums suggest reducing the tire pressure by only 5 or 10 lbs, yet the "Ideal Inflation" table found at: http://www.precisiontandems.com/phot...tirechartx.jpg says I should be riding at 72-75 lbs... pretty much right where I like it now.
Here's all the data:
Bike: Trek 7.5 FX
Tires: 700 x 32c Bontrager Race Lite Hardcase (actual width 30.5mm)
Max pressure: 110 lbs
Wheels: Bontrager SSR (don't know anything about these as I can't find them on the Bontrager website)
My weight + bike: 230 lbs
My comfortable speed right now: 13-18 MPH
Thanks in advance for your comments!