I'm glad to hear that since I ordered all LS650 parts for both sides. The cast wheels are giong in for powdering Saturday if I can get the bearings out in time.

If you put a 1983 to 1985 gs550L wheel on the rear, it will run tubeless. The picture of the teal 2013 S40  on the last page is mine. The front wheel is stock so it has a tube, but the rear mag wheel is tubeless. I listed out all the parts required for the rear wheel conversation. The front wheel is more complicated so I did not do that one.

Ok, thanks! I was looking for '80 to '82. If '83 is indeed tubeless, that's where I'll go.
A tubeless front would be my nirvana, as I have an irrational fear of a tube blowout, in spite of all the road bikes across planet earth using tubed front tires! Cheers!

Cheers!

Just a FYI: a 1981 GS450 19" front wheel can mount two rotors.

Just in case I don't like how my bike handles with a 16" wheel which came with the pair I bought last month. Plus I needed the 450 solid rotor. I obtained this 19" wheel for $40. I pried off the plastic cover on the hub and found this.

Spacing is the same on both sides according to my eyeballing.

If you can make the brackets, have clearnce between the tubes, get a Y hose that will fit, and the will to make it work, maybe....
Or you could get a dual piston caliper from a SV650 (left side) and make just one bracket using the slotted disc (full size) and have a awesome single disc set-up.
That is what I have on mine and it is far better than the stock front brake.

About a year and a half ago Dave came up with the trick. He sent a caliper and bracket to fit a stock disc to MMRanch. I picked up on  it and thought as long as I am making a bracket, why not use the bigger uncut disc? I taped a piece of 14 gauge inslated electric wire to the outside of the disc to set-up the clearance, set the caliper where I wanted it and made a cardboard pattern. When I was happy with that I copied it onto 3/16'' steel, bolted it all together, took off the wire and it worked the first try!
I am very happy with the improvment in braking power. And I only have about $80 in it. A used caliper from e-bay, vented disc that came with the wheel, stock master cylnder and hose. When I first put on the 450's wheel I had to find a solid disc and it cost $95 to turn it down to stock dia. (that disc is on MMRanch's bike now)
Often guys get caught-up in HP to ''improve'' their bike, never thinking about brake upgrades to slow back down.
A old Waylon Jennings song talks about his first pistol  ''a cap & ball Colt, shoots as fast as lightning, but it loads a mite slow, it can get you into trouble but it can't get you out''
 I live in S.Fla and better brakes can help get me out of trouble as much as a quick throttle.

The dual piston caliper is the biggest boost in power, the bigger disc is just iceing. And the holes tell other Savage riders that 'something's' different.