Normally there is no extra cost unless you need an extra long frame. To help you choose the correct size let us know your inside leg measurement and height. If your weight is approaching this level let us know what type of riding you intend to do. We may recommend some modifications if you use the Windcheetah on poorly surfaced roads. The main advantages are the absence of distortion during the manufacturing process, which provides exceptionally accurate frame alignment.
Welded frames have a tendency to distort during manufacture, which can lead to alignment problems.
The Windcheetah frame can be debonded safely and then reassembled. This is particularly useful if the machine has been damaged in an accident and needs localised repair. Yes, of course. We're not happy unless you are. I'm afraid not.