What's the old adage?

Lay out everything you plan to take, then leave half of it at home...

I travelled all over the USA (23,000 miles in six months) with just two 35L dry bags strapped to the rear seat - one with personal kit/clothes, and one with all my camping kit in... I also had a small Touratech tailbag for tools and tube/puncture kit, and a Camelbak that expanded to 15 litres to stow Piglet mainly, plus a warm layer, snacks, and maps etc.

There is a thread buried here somewhere called 'Traveling Light' - I can't imagine you'll need an more than that, but remember that nowhere in the world is beyond the postal/courier service these days... if you find you really need something (or conversely no longer need something with you), just get it sent ahead and pick it up en route?

Jx

ps. and don't bother modifying/loading your bike up with loads of accessories and crap - the stock machine is more than capable of traveling any terrain you might encounter - all I fitted was a pair of handguards and some foam grips for comfort... at a push you might want to consider some larger footpegs too...

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"Where we're going, we don't need roads..."

JennyDakar.com