i am 5'5" and i had my bike lowered internally , to go along w the factory shortened travel. You want to touch the ground to make a start, or stop on a city street. Ignore the BS, if it's on the street you will need to touch down..... call Jimmy wood at southland suspension. he does flat track - jake johnson ama effort, supercross and everything else. mine handles so much better, way lower CG, You don't need all the 13" suspension travel or height for a Supermoto track.
I slid the forks up through the clamps as much as i could. Be careful because later models can get headshake. Doing this helped me get used to the height. If you need more then i would shave the seat down and wear good mx boots. I am comfortable enough now after a year to ride my friends drz400s with knobbies and a suzuki tall sest. Lay the bike over and touch a toe to the ground. Practice standing at stops and balancing the bike at very low speed. Doing this i put my foot down 1/5 stops only looong red lights.
I lowered my WR almost 3 inches - - having to stand wobbling tippy toe is not what I wanted -
bike now handles exactly the same as before I lowered it - Sweet -
Lowering is accomplished by installing spacers inside the suspension -
not hard to do but requires the shock and forks be completely disassembled - no machining needed -
you can purchase lowering spacers from Racetech and install yourself or have them do it -
Several tuners /companies lower bikes -
Kick stand will have to be shortened same amount also -
I know this is an old post. If your interested, I have my lowering link for sale in the "Bike Parts" section. It is listed in my add for 2009-2010 Husky SMR450 titanium pipes and other aftermarket parts.