Will the Swytch kit fit on my Brompton handlebars? 31 January 2019 18:29 Updated Follow In short – yes! The kits connection bracket will fit all variations of Brompton handlebars – S, M, P, H. Related articles Can I convert my T-bar Brompton? Will my bike still fold with Swytch? Do I need a torque arm? Do you need our tyre size? Do we have a telephone number?