Long story and you wont care BUT I often have to swap out the tow ball on the car. Trailer uses the smaller one and the bike rack is way better with the bigger one AND needs a little flat plate under it to stop it moving about so you cant fit the trailer on anyway...
Uses a 38MM (or close to it) nut...
Repco/supercheap don't usually go up that big so any other recommendations???
Cheers
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