A.) Buy a kawi 750 SUB PLATE assembly. The mounting bolt is an inch forward compared to a stock sxr.
OR
Buy an RD sub shaft that you can bolt onto your SXR SUBPLATE, achieving an extra inch forward.
B.) If you have UMI bars, or any bar with a V neck in it, move them forward until they hit the bearing assembly, its aso an inch. Drill 4 new holes and bolt them down
You will also have to weld a tab onto your stock turnplate to move your steering cable knuckle back an inch t compensate for moving it forward. Unless you want to cut your cable, which I would'nt.
If you use Xmetal type straight bars with NO neck, you will get even more out of it. RD also sells a similair handlebar.
Its cheap, easy, and works great. I have a few setups ready to go if your interested. PM me if you are, Im not on here often in the summer.