My brother is going out to cooke city here in a few weeks. He has a F7snopro. This will be the first time he goes out and it will probably be only once a year. The rest of the time he rides in North Dakota. He is planning on long tracking his F7 how do the 151 1.5 and 144 1.5 do in the MTs what do they compare to. If he went 144 he might leave it on permenatly but the 151 would have to come off the rest of the time around here. How hard is it to put the kit on. Does the cooler get riveted on and would it be possible to use small bolts instead. Any pictures, experience installing, and comments as to how the fcat performs with a long track. How much different would the 144 be compared to a 136 zr is the length going to be really noticeable for around here and will it stand up to jumps and bumps.