Far more reactive braking reaction, a singular parking mechanism, and the chance to lock the wheel with just one hand only. This bike is much fun! The guys at Surron Motor have been super handy with anything. I had been so psyched if the bike lastly came. I'd advocate them https://jasperrrtrr.amoblog.com/the-single-best-strategy-to-use-for-sur-ron-ultra-bee-58584535