Bear in mind that the tongue weight capacity of a vehicle is typically 10% of its towing capacity. So a vehicle rated for 2000 lbs towing (like the CX-5) would typically be rated for only 200 lbs of tongue weight carry. It doesn't matter if your hitch or carrier is rated for more -- the vehicle is the limitation.
200 lbs tongue weight is not a lot when talking about motorcycles, especially after you deduct the weight of the carrier. The VersaHaul linked above is 80 lbs, for example, leaving only 120 lbs for the motorcycle. It would have to be very small bike to stay within capacities.
(What I can't answer is how tolerant the CX-5 is if you go over the weight limit. You're potentially compromising handing, steering and braking performance. By how much I can't comment.)