KOOLUX BK6S Pro 20" Electric Bike 250W 48V 23.4Ah Folding E-Bike City Bike 150km. KOOLUX BK6S PRO Dual battery. TheKOOLUX BK6S PRO E-Bike is equipped with a250W motor (unlockable on500W ) that provides strong and stable performance for your daily rides.
