There is another spare on the rear bumper as well. With both spares at the rear, the ball weight was too light for my liking, so the manufacturer added the second to the front before we picked the caravan up. It should have been underslung forward of the axles, but an extra water tank was added that meant the spare would not fit in its original position. Fully loaded, the ball weight is around 240-250, with an all up travel weight of around 2.9 - 3.1t, depending on how much water I choose to lug around. The ATM is 3.5t.