Sorry, my bad. I would probably go with the 146 if you weigh 160 without gear on, because your gear is going to add some weight and it gives you some room if you gain any weight too (i don't know if you are still growing or not). If you're done growing and weigh close to 160 with your gear on I'd try the 142.
Thanks - yeh im fully grown and probably just under 160 so with gear its probably more like 160 with gear. im leaning toward the 142 tbh, my only concern would be the boot size but i think the Nug is fairly wide anyway. Have you ridden one?