Additional reactive braking response, a novel parking mechanism, and a chance to lock the wheel with just one hand only. This bike is a lot entertaining! The blokes at Surron Motor have been super valuable with anything. I used to be so energized if the bike eventually arrived. I'd advocate https://sur-ron-storm-bee38158.onzeblog.com/36815583/getting-my-surron-ultra-bee-charger-to-work