Will the kit fit my Brompton handlebars? 31 January 2019 22:57 Updated Follow In short – yes! The kits connection bracket will fit all variations of Brompton handlebars – S, M, P, H. Related articles Will my Brompton still fold after making the Swytch? Can I put the Swytch in my Brompton bag? Will the battery fit with my Brompton bag? Why can I not get the Brompton kit in a 20mph version? Dynamo - will the motor wheel power my lights?