Excellent Performance, Reliable Quality, Good Value for Money
I bought KN20S 250W, together with wireless throttle display and cadence sensor. Very precise response of motor and sensor makes the riding really fun. The throttle is also very useful. It makes the uphilling and starting super easy. Overall quality is impressive. Every component has high level of finish. No malfunction or breakage over 1 year. Customer service is the best. The reps are always ready and you can get the answers immediately.