For people who want a higher cruising speed and don't have clearance problems (saddle bags) it might be worth your while to measure your 'bike and see if it will take a 150/90/15 (Bridgestone G702, Dunlop D404 + K425). The 150 is 5mm per side wider and 23mm up on radius compared to standard, that is 9mm up on the 140/90.
The 150 will give 59mph at peak torque versus 55, and 80.5 instead of 74.8 at peak power.

Clive W

That 150/90 change on the Savage would be barely noticeable....but remember that any rear wheel change on the Savage affects the speedo accuracy.

A larger tire will probably fit mine now, since I removed the saddle bag supports.

I am running a 140/90 now and had to shorten one bag support bolt head. Runs fine.  Not certain what 150 would cause me to have to do and keep bag supports but I think I could get it to happen.

Me too, I got 4400 miles on the original tire and the center is thinning quite a bit. I spent an hour surfing for new rubber the other night. I guess it will come down to most bite for the buck. The IRCs are OK. I am game for a taller tire than the stocker. I have some concerns if you  install more compliant shock of bottoming on fender and saddle bag supports. Lots of name brand tires to choose from.  Good "press" for the Dunlops.
I like the 21' wheel on a buddies Vulcan, I would try that mod if i got ambitious.