I have a 2014 yz250f that has been maintained as a race bike. Perfect bike with no problems. Gold racing chain with Mika metals sprockets. Break away clutch and brake levers. Excel rims with Kenda southwick II tires. Oil has been changed every other ride. New oil filter. Pro suspension tuning. Bike idles perfect and runs like a champ. If your looking for a good reliable bike. This is the one. Text me at 843.251.8066