What year XTX we talking about? 11-15 they were 144”. A 146” was only offered in 16-17 with the Singleshit skid. If you are used to a well tuned Mono skid you’ll likely find the 144” CK skid rides very harsh, but takes the big stuff well. The star kit softens it up a bunch, but it will never ride as plush. I had my 11 XTX close, through a ton of tuning, but could bottom it on REALLY big stuff. For what it’s worth, I’m back to a custom valved/sprung Mono skid again, and prefer it.