Yesterday I was messing around in my front yard with a tree and managed to get my left front tire 42" from the ground when measured at the center of the hub without lifting a rear tire. I was checking out my clearances and stuff because I wanted to know if I could get the tires to touch the floorboards (learned I certainly can, it is my bumpstop for up travel. /forums/images/graemlins/rotfl.gif My question is, when you measure RTI based with a forklift, how do you figure your score? I am assuming I should have measured from the bottom of the tire to the ground, but all the info says that from the hub to the end of the ramp is how it is measured when you do it on a ramp. Since I didn't measure the bottom of the tire to the ground I have no idea what that number is. RTI for 42" and 119" into the calculators generates an RTI of 1032 which seems a little bit reaching. Just guessing and removing 16" from that 42 and factoring the wheelbase would put me at around 600 which would be rather sad. So, which is it? 1031, or 600? These are both factored on a 20* ramp of course. So, distance tire from the ground, or hub?