This question often comes up. "I'm new. I'm not very tall. Is a 650 too much for me?" One side says: You'll be fine. You'll grow into it. Buy the bike you'll want for the future. The small displacement bikes suck. Blah, blah, blah... The other side says: Get a light bike to learn on. Your first bike won't be your last anyway. You'll crash a lot so get something light to pick up. Get a smaller bike that wont kill you. Blah, blah, blah... Both sides are well represented here on ADV. I advocate the second point of view. I started on a 250 and will likely stay there. Some folks are setting aside their bigger bikes in favor of smaller ones. If the KLR 650 felt too big or heavy, it's the wrong bike for you at this time. When you have more experience you may come back to it or another larger bike. You're not a kid any more. If you crash, bad enough on the bigger bike, you may be all done.