As suggested before, the trick is to keep the bead opposite the ratchet head in the center of the rim. That may mean running the ratchet head at 6 o'clock which allows the bead breaker (at 12 o'clock) to make certain that it does.
(3 rears and one front changed so far.)

 

Yup, amazing how it all works when you follow instructions 😀 Last time I’ve, literally, done it with instructions next to a tool and it all worked out great.

 

Yes, the threaded handled lined up well. It fits straight through the body to the threads, and screws in easily...

The welds look like silver peanut butter , but everything is lined up....

 

I finally got another chance to try out my Rabaconda street bike tire changer this past Wednesday. If you recall, I mentioned in post #63 that my first attempt at using this machine didn't go very well. I was working on a 2016 HD Ultra 17" front tire with dual spoke mount rotors. The included magnetic wheel supports didn't raise the wheel enough to prevent contact with the frame of the machine. I called customer support, and they sent me an adapter free of charge which raises the magnetic wheel supports. I'd rate customer support as very good!
Time to work on the rear 16" wheel off this same 2016 HD Ultra. My friend was running a Metzeler ME888 Marathon Ultra rear tire and the same brand/model of tire was going to be installed.

Tire removal/installation process was a piece of cake. This machine just works. Unfortunately, for comparison, I've never worked with a Metzeler ME888 Marathon Ultra rear tire on my No-Mar machine. But whenever I've worked on a 180/65-16 rear tire (Dunlop American Elites) on my No-Mar, I've always had difficulty. With this Rabaconda, it was a piece of cake. I was shocked at how easy it was compared to the difficulty I've had on the No-Mar. I truly believe the trick is the Rabaconda ratcheting duck head.

A couple of additional thoughts:

Bead Breaking
I've never had a problem breaking a bead with the No-Mar. I purchased an extension to use on the No-Mar bead breaker (3 feet of 1-1/4" black pipe) for more leverage. When breaking the bead using the No-Mar machine, you need to position the dog/cam block above the yellow dot on the frame arm. Then you need to pick-up the wheel and rotate it below the bead breaker arm so that you can break the bead around the wheel. Sometimes, it's possible if you don't position the wheel correctly under the bead breaker arm, the tire can jump while you press down on the bead breaker. Then after bead breaking, you need to remove the wheel, remove the dog and cam blocks and replace with the posi-clamps. Adjust the posi-clamps and then clamp down the tire.
It's much simpler with the Rabaconda. I was concerned that the bead breaking arm on the Rabaconda wasn't long enough to provide enough leverage, but that wasn't an issue.

Advantages of the Rabaconda over the No-Mar were:
1. No chance of the wheel jumping around during bead breaking
2. Very easy to turn wheel to reposition during bead breaking
3. No need to change anything when ready to remove the tire.

On this particular tire change (2016 HD Ultra rear tire 180/65B-16)
1. Wheel fit on the machine with the stock magnetic wheel supports. I did not need to use the adapters they sent me.
2. I could not fit the stopper pin in an available hole. The hole was blocked by the rotor. So I just used the supplied strap.

I was very impressed with the machine and it's portable! I would highly recommend this machine over a No-Mar and I have both.

 

I have no experience with the no mar, but I've done a bunch of tires with the Rabaconda now and am pretty happy with it. Glad it's working for you too.

 

lol I’ve tried for two hours today to mount 18” bias tire on the rear. Maybe I was doing something wrong but once I’ve got to last quarter the duck head would just jump off the rim. Radial slipped right on but this one had to throw the towel.

 

Keep the bead opposite the duck head in the drop center. Use the drop center gizmo's and it's cake.

 

Yup, had two drop centers at 2 and 10 and still.

 

More bead grease? Hope you figure it out.

 

Yes, more tire lube.
Where have you been placing the tire lube?
Put tire lube on:
Duck head
Outside of rim
Inside of tire, bead seat area

You want to place the tire lube in the area so that it helps the tire slip over the rim.