right now i have 5k on the rear and it looks fine. however, i plan on taking a trip to colorado in may so do I change now and keep the "old" tire around the shop, or do I just go with the old one. memorial day weekend is the trip (thurs-mon) and i am guessing it will be around 4k miles. i am kinda thinking of replacing it before the trip, but what's y'alls opinion? thanks johnny:biker: