The World's Most Powerful E-Bike is SLOW

This is my test and review of the most powerful upgrade kit available for the sur ron, the KO Moto controller and motor kit. The surron should be pushing twice the power now, but it actually goes SLOWER than before! After going back and forth with KO, they concluded that my 62 tooth rear sprocket requires a high RPM that their motor cannot handle. Somehow the "upgraded" KO surron motor can't spin as fast as the stock motor can, which blows my mind. It is all a problem with the KV rating of the KO motor. Regardless of KV, I'm disappointed this spins slower than the stock motor and no one talks about that! This is a separate disappointment from the less-than-positive customer service I received. I was even told by a KO employee not to post certain parts of the video or I could face legal action. How about that! KO Moto: https://www.ko-moto.com/ My Sur Ron: Controller: @E-Moto Bros ASI BAC4000 https://emotobros.com/ Battery: 72v 38Ah from Chi Batteries ✅ 5% off with code "SURRONSTER" ✅ https://chibatterysystems.com/?ref=SU... Most parts listed here    • My Sur Ron UPGRADES  *over 20 modifications*   key words: ko motor ko moto surron ko motor ko controller controller surron sur ron bac4000 vs bac8000 vs ko controller ebike electric upgrade surron modification surron upgrade power upgrade most powerful strongest fastest electric bike slow supermoto minimoto wheels dirtbike dirt bike ebike emoto test review fail