Jack up my rear end!!!!!!!!!!

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Help,

I need to jack up the rear of my bike, suzuki SV650s (1999). My aim is to give it a more aggresive stance.

One way i have found i can do this is to change my suspension linkage, but this only raises the end of the tail by 25mm. Also it will quicken up the steering which i don't real want.

Any ideas on how i can achieve possibly 50-75mm lift at the rear. Do i have to modify the subframe, or can it be done with some kind of spacer plate.

Advise/suggestions welcome, if spacer plates are needed what material/spec should be used. thanks in advance!