A 20 year ol bianchi with stem shifters is not worth trying to lighten 3-5 pounds. It's not worth a carbon fork either.Save your money or put it into a new bike.Maybe better for you to loose 5 pounds?Weigh it by standing on the scale with the bike.Record the weight. Now stand on the scale yourself.Record the second weight. Subtract the second fron the first.Result,bike weight.