Just bought a new black klx250s

no mods.. broke her in gently for past 400 miles..
opened her up on highway last night.. I weigh 225 lbs, on flat freeway she topped out at 82 mph, and I could feel that she had a little left to give but I backed off! Is this good for a stock 250s? I have read alot of posts that some will go no faster than 75 mph.. I plan on puttin on a megabomb, q4, dynojet, and kdx 200 duct next week.. how fast should I expect her to go then? any one have any experience with that type of mod?

 

Don't forget to account for the 10% speedometer error. That puts you right at about 75. Uncorked, I saw 92 indicated (83 actual) on mine before I geared it down. Top speed will vary quite bit with wind direction and speed on these little bikes, laying down on the tank helps a little.

 

thanks man.

 

How stable was the s model at that speed? I get a decent vibration or twitchiness at about 55 and up. I have no problem running at highway speeds with my bike, not that I really like to but sometimes you need to for a short distance.

 

Ive hit 85mph on my SF a few times.

 

But can it outrun a plane?

http://www.youtube.com/watch?v=Nrq31J6RbgU

 

82?!!! Was that downhill? LOL Well I weigh 250, and with the full pipe and jetting, and gear changes, I can hit 70 but that's pushing the rpm's a bit. Love the low end power. Welcome to the forums, post up an intro in the new member area.

 

Classic Iron Eagle!!!

 

Honda XR.....that would be a great project bike.

 

82mph on the speedo is about as fast as it gets (73.8mph actual). Also the speedo has a 10% error from the factory, so make sure to subtract a 10% difference. I have gotten mine up to 70mph GPS, but that was on a nice day and flat road.