I currently have a 2006 yz450f, I have Dr D exhaust, Talon hubs, bulldog spokes, regina chain, tag sprockets, pro taper windham bends, tall seat, boysen quickshot, asv levers, enzo suspension, yada yada yada. I have put alot of hours on the bike and the guy I bought the bike from raced it but not a whole lot. I ride almost everyday, My question is should I buy an 07 and just put like wheels and what will fit on the 2007 or just wait for 08. I have just dont like having soooooo much time on the bike. I am afraid of serious issues. Maybe I shouldnt be at all, but jesus I ride alot and this thing doesnt brake alot but I dont want it to come. Valves have never moved and I change oil everyother ride Amsoil. Always a clean filter. Should I just say F it and keep riding the hell out of it or upgrade? I just dont want downtime and issues I just feel I ride to much and nothing inside has been changed except clutch plates. I have a hinson basket on my shelf that needs to go in also stocker is shot. WHAT WOULD YOU DO? Dont know why this hit me all of a sudden , just feel sorry for my bike.