From when I bought my C line several years ago, Bromptons by default came with a taller seat post that would work for people that are 6 feet tall or possibly even taller. I know this because I attempted to install the convenient seat height position saver widget, but discovered that they only work with the shorter seat post, which I wasn't going to shell out another $50 for. So now I just know my seat height thereabouts via muscle memory.