On a 650 the two OEM tires that might be on the bike when its new are Dunlop and Bridgestone.
Ive ridden with both and like the Bridgestone. They weigh more which makes the steering more stable (heavier gyro effect on the wheels) and Ive gotten 15k miles on the back tire.
I ride my 650 pretty benignly, most people would say Im puttering around.
From what Ive read Michelin commander 2 appears to have the longest life, but they are more expensive. I might try them the next time I have to change both. Im getting twice the mileage out of my front tires, so I have another rear Bridgestone to go through before I need to change the front. I hope I can find the weight of the tires before I try them, it makes a big difference.
With the dunlop tires I could not take my hands off the grips, they are too light.
Ive found the best prices and free shipping from BikeBandit - but that may change from year to year - tires are a very competitive market for on-line sales. The only drawback for BikeBandit is they may have the tire you want in the size you want, but if you tell the website to show you all the tires that fit your bike, it may not show you the ones you want (even if they have it).
You have to search by tire size.
Last edited by KCW; 11-13-2017 at 08:25 PM.