Got an offer for a trade, my DR650 for the GS. It has just had the valves adj and oil changed, final drive rebuilt last month, pivot bearings replaced last month, transmission splines lubed March of 2011. Just wondering what kind of longevity i could look for out of this bike. Owner says almost strictly commuter duty for the last 20,000 miles. Appears to be very well taken care of. 70,000 miles sounds like a lot but i know that these oilhead engines were known for being very reliable, I am just looking for a little insight as to what i should be looking for if i go to inspect the bike. Thanks for any help.