hey to halfway answer the earlyer guys question the 400ex does about 65 mph stock i have a K & n air filter and filter rap, +2 front shocks, and i cut the bafel or how ever you spell it out and put the cover back on which gave it a great mean sound and it now tops out at 69mph, o and i also have maxxis razer 20-11-9 rear racing tires which are great. but i also want to ask if anyone has a repair manual for a 400ex if they could scan some images out of it for me if its no trouble. i also work at a tire shop so if anyone has any questions on how to work on them, ply rating or size just let me know. thanks

 

I went with the Z400. Its got great power and handles very good. But like the other guy's are saying, you really can't go wrong with either. The 400ex was just to out dated for me.

 

but i bet i could still take you tho lol just playin man im not sure but i do know i can drive