hey nobby. i started out at amtra with my dr650. duel tires are no good mate. what i did is got a set of motard rims and road tires. then set up the stock rims with good trail tires. level beginner-1 is fine for you but when you get to level 2 and up, the bike starts to feel very heavy.
i did a heap of mods to suit my hight. you will want to get rid of the cement mixer rear end aswell.also fit flush mount indicators...if you need any tips just pm me. the lads will give you heaps of great advice aswell.
best advice..when going down a hill thats muddy and slippery, it is very hard to pull the dr up with all her weight. a loud horn can work
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if you chase up a few topics and threds that i did on the dr650 you will see some photos of what i did. hope this helps
here you go , scroll down this thred and it explains itself.. \
http://www.vinamtra.com.au/forum/general-chat/ello-from-rat/msg7973/#msg7973