The maximum tounge weight is not the max weight you can pull, It is the maximum force that can be pressed down on the tounge without causing a problem. I am not sure how much a class 1 can hold but I wouldnt recomend it for much. You should be able to find a class 2, they may just be hard to find. How much do you estimate you will be pulling?
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Lucas S. Starkvegas, MS