text: It sure is. Cycling for 20 miles every other day ( Id drop dead ) is awesome. Your heart rate will be accelerated, that in itself starts a chain reaction of your glucose meant for fuel, being used quickly. When that is depleted, your body will need another source, fat. \n\nIf you want to lose weight and all you are doing is cycling , it should be fine. But if you are looking to really tone your body all over, id try some weights. You are working your legs with cycling. This leaves the rest of you that will not be as toned. So if all over toning is what you are looking for, add some light weights.\n\nDiet. Lean meats and veggies, seeds , nuts this sort of thing will make your weight loss efforts much much quicker. You will also need these lean proteins to re build muscle.