Julian Bond, founder of this website, tries BMW's CE04 electric scooter for size and demonstrates its disappointing lack of backrest at the MCN Show at London's ExCel centre. There is a so-called 'backrest' available as an option, but it's nothing of the sort – it's barely worthy of the name bumstop – in fact 'bumpstop' would be more appropriate!
See the bumstop in the photo of the CE04 in Surrey, here: https://bikeweb.com/node/3724.
The only true backrest available from BMW is the one built into the optional top box, as shown on the police version in this folder – great for the passenger, useless for the rider, unless it were designed to slide forward, which it isn't. That would be a good idea though! PNB
Photo: © Paul Blezard
See the police-equipped CE04 here: https://bikeweb.com/node/3692