If you get the urge to modify a bike frame , dont throw away the tubing you have leftover. If you chop up very many frames you will notice factory frames use all differant thickness and sizes of tubing. These come in handy when your trying to put a seatpost in a 1'' piece of tubing. You can try differant ones and usually come up with something that fits....like that chunk of old Schwinn will slide in tight in the one inch and then a western flyer seatpost tube will slide in tight inside that. Then you just drill a hole through everything but the inside one and plug weld it and you have a perfect fitting seatpost. The same goes with extending the chainstays. Some cantileaver tubes slide in tight inside a chainstay and allow make a strong weld. It allows you to make them longer and in any weird shape that you have dreamed up. So when you have that junk frame your going to pitch , cut the tubes out and save them for future projects. :wink:
