We have sourced a hugely beneficial narrow motor for our Brompton users which suits 74mm dropout widths, rather than the standard 100mm front dropout. In the past, Brompton users who wanted to go electric would have to stretch their forks. Problem! This invalidates the Brompton warranty, and just isn’t kind to your bike. Our Swytch narrow motor is a little more but it keeps your warranty intact and ensures that your Brompton is the very best that it can be. It is smooth, light and very discrete!