Sprockets

What is the best gear ratio for top speed no worried about take off , just wondering the biggest u can go on the front and size on back

Dude - click here


You want bigger on front and smaller on back. Don't know how small you can actually go though.

14 on front is largest you can go.

Why in fuck-all would you care about top speed on a 250x???

And the amount of dog-shit that such a change would make the bike feel like everywhere else is just crazy huge.

The WR can hardly top out with stock gearing as is.......

The top speed is probably limited by the aerodynamics. plus, how long are you trying to hold this top speed? Holding 75 mph on the highway is physically hard enough as it is, even crouching down. Can't see the point of trying to go any faster if the wind will rip you off anyway, without considering the instability this thing would have at any speeds considerably faster than the stock top speed.

For Motard racing and im running 14/43 but its topping out on the main strait at about 130/140 kph, need more top speed other bikes are blowing me off on the straits

I think you need a diff bike then not diff gearing.

Dont have enough money to buy a new bike , or i would of got a Wr450f

http://www.supermotojunkie.com/showthread.php?112725-WR250X-MpFab-Turbo-Kit-Just-Showed-Up-!!!!!

this !

Kurt250 wrote:

For Motard racing and im running 14/43 but its topping out on the main strait at about 130/140 kph, need more top speed other bikes are blowing me off on the straits

You have to make up for it in the corners and with braking.

You bought wrong bike for top speed.

100mph-ish is about it.

You'll have no pull out the corners and be dead stinking slow off the line with any attempts at raising top speed beyond where you are now.

At 14/43 you're already gutless in terms of any acceleration and drive.

Is your bike 100% stock? No programmer, no pipe, no airbox mods?

Pipe and programer

so put it 14/47 and race a smaller track i what im doing now