Well long travel is what it says..... it has more travel than std. travel which is always better...... but i can tell u..... DEFNITELY go w/ LT if you will be doing any MX unless u dnt hav the cash.... now i aint sayin u got to, but i thought it was WELL worth the extra money i dished out for it......i got LT on my Z and my friend got ST.... and his sits lower than stock, but he has no sag compared to wat i had..... he said his sat 2-3 inches lower than stock... whereas, if i wanted to, could make my arms parallel w/ the ground..... u will most likely be going w/ a zero preload shock, which will give you a ride height adjustment ring letting you make ur decision on how high/low you would like ur quad to sit..... u want the front and rear of ur quad to be pretty much flat... u dnt want it to be like a dragster w/ the back 10 inches higher ( best if its within an inch)..... w/out me on it..... my Z sat 7 inches off the ground w/ a stock rear shock and long travel elka ssd-(zero preload) fronts... i will be going w/ the LSR LT DC-4's on my YFZ w/ PEP ZPS and am hoping that will also let me put a lot of sag if i want it..... but, to sum it all up...... i am VERY GLAD i went w/ LT instead of ST...... ive ridden and jumped both and can say LT is well worth the extra money IMO..... but thats just my $.02....... but if u have nemore questions... lemme know and i will try to answer them for u..... Trey