2001 400ex. It's adult owned, in excellent shape, has a decent amount of engine work as well as a bunch of other modifications ,(I have a full list of everything done to it) no Chinese mods on this ATV! It's a 416 big bore with an 11.1 compression ratio, stage 2 cam, ported head, trx450 carb and full exhaust, just to name some of it's mods. It's extremely fast not for beginners... Asking 5000.00 OBO.. possible trades for other Motorsports or vehicles. Not in a rush to sell this its an amazing machine, really clean, built right and a ton of fun ...