power when kips valve opens? how much?

[eroknroll]

Speaking of my buddy with the ktm, he just took the kdx for a quick spin and then conceded that the kdx is quicker...

We haven't even had a race yet....

[pauljames0303]

All power valve systems vary, the duration of the exhaust port open time, which gives the engine usable low end power combined, with excellent top end power.