So cruiserrg, you feel uptravel should be limited for rock crawling. I find the trucks with little uptravel tend to be very tippy in the rocks. My opinion is that you should be about 50/50 on the rocks. case in point, your off camber, and you start to climb a rock with your front left tire. As you start to compress that front left tire, half way up, you fully compress the front left suspension, from this point the body will roll drastically, more than it should, untill you reach full droop on the right side at which point, the truck will either lift a tire, roll over, or force to rear suspension to take up the slack for the front. All this time, your CG is getting higher and higher. Now in an ideal situation as I see it, your front left would reach full compression almost at the exact time your droop side maxes out. This gives you a neautral CG, and keeps the truck stable. This can be done with spring rates instead of travel, but will lead to heavy rate springs that are not favorable to rock crawling. Your travel and spring rates are very critical, to make the truck perform at peak performance in the situation it was designed for, and should be directly affected by each other, meaning, that the spring rate is calculated using the uptravel required for the application as well as a few other factors. One up side to very little uptravel, is that you can maintain alot of height from the body of the vehicle to the rocks, this may be desirable in some situations, but I would think it would be better for MUD, to keep the frame and junk out of the mud to decrease potential snow plowing of mud and water. Anyways, there are alot of factors, and I dont claim to have the correct answers, but I pay alot of attention to vehicle setups, and how they perform on extreme trails, as well as alot of testing of different setups on my own trucks, so i feel i have a good grasp of what does what.
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