Cheapest component to lose weight from, on the bike, is the rider. A few more miles should so it. I am 6'5" and 20 st. I have a lot of miles to go. I was down to 12 at University. I find a heavier bicycle too much to push, but too light is too flexy as well. So my Schwinn Passage, at 11, fits the Bill perfectly. and I think my 1981 Voyageur is about a pound more, so I have found my mark.