I appreciate all the advice and through searching the forum, have read most of the points repeated here. I'm not disagreeing with any of them and for most riding won't even bring a lock but there are times I travel with the yakima hitch and want to take my bike or go wine tasting or go on a leisurely ride with family where the weight won't bother me. Yes, it will get stolen if a pro wants to steal it but I want to add some deterrent regardless.

That said, I would appreciate just the answer to my question with the given I am looking to buy a lock or two. I really just want to know the preferred size and combo of my preference to purchase ABUS. I was thinking the 9"ABUS Granit X-Plus 540 U-Lock would be long enough and I think I could attach it to my Yakima Hitch rack. The Granit X-Plus 54 Mini U-Lock and or a Granit City Chain X-Plus 1060 I'm undecided on. The chain might help attaching the frame and front wheel to a part of the hitch that would be more difficult to take apart.

Thanks.