3300 trailer limit, but beefiest hitch is class 1 (2000 lbs)

[arencambre]

The 0.8mm (0.031") difference is inconsequential

No, the shape is different. 2" couplings are incompatible with a 50mm ball.

More info at https://www.honestjohn.co.uk/forum/post/index.htm?t=61476.

 

[D.J.]

No, the shape is different. 2" couplings are incompatible with a 50mm ball.

More info at https://www.honestjohn.co.uk/forum/post/index.htm?t=61476.

I'm gonna need to see an image of why it doesn't work.

Have you seen such an image?

 

[arencambre]

I'm gonna need to see an image of why it doesn't work.

Have you seen such an image?

That's a great question!

Here's the Curt 40099, which claims to be the European-style 50 mm version:


And here's the Curt 40164, the US kind:


Eyeballing it, I'm not seeing the difference. Are couplers so precise that a 0.8mm variance is the difference between success and failure?

 

[D.J.]

That's a great question!

Here's the Curt 40099, which claims to be the European-style 50 mm version:
View attachment 76011

And here's the Curt 40164, the US kind:
View attachment 76012

Eyeballing it, I'm not seeing the difference. Are couplers so precise that a 0.8mm variance is the difference between success and failure?

I have used a 1⅞ ball in a 2" coupler.
It works

Need to fully tighten the 2" coupler for it to work.

The 50mm will work in a 2" American style coupler

1⅞“ is 47.6mm

 

[arencambre]

Need to fully tighten the 2" coupler for it to work.

That assumes you have one of those adjustable couplers. The trailer of interest does not:

 

[D.J.]

That assumes you have one of those adjustable couplers. The trailer of interest does not:
View attachment 76013

What coupler does the trailer have?

 

[arencambre]

What coupler does the trailer have?

It's the photo in the post you quoted, a regular 2" coupler.

 

[D.J.]

It's the photo in the post you quoted, a regular 2" coupler.

So, it's adjustablle then?

Like

 

[arencambre]

So, it's adjustablle then?

No. It does not have that part. It's a plain 2" coupler.

 

[D.J.]

No. It does not have that part. It's a plain 2" coupler.

You sure about that? Aren't they all adjustable? How was it manufactured without the adjustment nut.

I suspect there is an adjustment nut under there

 

[D.J.]

No. It does not have that part. It's a plain 2" coupler.

Can you just replace the inners with standard adjustable inners?