Dropping the forks can be done all you need to do is loosen the bolts off and slide the forks up, its not really that big of a job, but 5mm depending on how you felt the bike was before isnt really that much, but best to go little at a time.

You can get rear raiser links which will do a similar job and also raise the rear up but just keep an eye on the chain roller at the bottom as too much hieght will have the roller wrecked soon

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Plough on