[mrbb]

OK first off the ball size has NOTHING to do with what receiver it fits on
it will all come down to what size hole you have in your receiver, for the shank of the BALL to fit thru, you want as tight a fit on shank to receiver hole as possible.

I have honestly NO clue what the hole size is on a 2017 honda receiver, but I am darn sure your DEALER can answer this question with a phone call

IF he says it has a 3/4 inch hole in it, then buy a 2 inch ball with a 3/4 inch shank!

NOW The next question and one you MAY wish to THINK about is LENGTH of the shank itself, as you do NOT need one that is hanging down too low, it will just get beat up, booger the treads up making getting it off down the road a royal pain, and it will drag on things
. BOTH shank size and length are OPTIONS On balls when you buy them, as are weight ratings of the balls and material the ball itself is made out of
some will rust WAY faster than others.

SO< when you CALL the dealer to as HOW BIG the hole is in the receiver, also ask HOW thick the receiver is, and then you will know what size shank you need in bother Dia. and length!
Ball material, is your choice as well, harden steel, chrome plated, stainless steel and the likes??

 

[mrbb]

I think the 1" shank will be too large but that remains to be seen. I would suggest this type that bolts into the ball rather than the ball having a shank it helps with not having the shank sticking out the bottom where it may catch on things not a huge deal but if you can find one they work well.

I am not 100% but I think they pretty much did away with these balls, due to the ball gets the load and that can result in them un screwing as loads ride and you travel!(being a round ball, rather hard to hold to get a bunch of torque on then too, , more modern one's have a flat sided base to allow some grabbing, but they still I think are no longer sold for again being known to come loose while towing)

and you still have the head of the bolt on the bottom of things, a NUT from a proper length shank , will sit about flush like on the end of the treads, OR you can always cut to have it flush with nut too, and there more proven to NOT come unloose , when installed right(locking nut and torqued down) as the ball then is NOT as likely to SPIN thru time, as the one here
NOT bashing, just saying!

 

[mrbb]

you can also add something like this, which will also get the ball UP higher to keep more trailers more level and less tongue weight on the atv, plus you can use trailers that have the pin hole or other things, or can even tow ?? things with it, add a D ring clevis or??

I have one similar to this for many yrs, NOT a weld on ball like this one is, but another option for those that have interest??

ATV TEK Trio HD Multipurpose Hitch with Ball Mount : Cabela's


mine is like this one

https://www.denniskirk.com/513214.sku?ad=11620160422