The weight limit of an Old Man Mountain rack is 70 pounds (or 31.75 kilograms) when axle mounted. When eyelet mounted we recommend a weight limit of 55 pounds (or 25 kilograms). whether 55 or 70 pounds, that is a lot of weight to carry on a bike and it will diminish the ride quality. We suggest spreading your total weight load to be 40% on the front wheel and 60% on the rear [...]