A one hour ride at a moderate pace should not require extra carbs before you ride. You will want to have a post ride snack containing fast carbs and some protein. I like orange juice cut 50/50 with water and a scoop of vanilla protein powder. You want to protein for your muscles.

However - if you want permanent weight loss, you should build muscle. Muscles will increase your resting metabolism and generally make you look better. Weight lifting is a great addition to cycling.