We have a few things to satisfy your request E-powersport.com 

They have a custom Controller, that is programmable and has been upgraded with a stronger acceleration curve. East coast team has also used different gears to get more oomph. It’s way more than a Bird scooter.

I can tell you how real they are, we sell them.  Been working with the West Coast distributor for the last couple of months getting them out.

I raced my 8kw against a 250cc and he did get me over 55mph, but I was way ahead of him.  It wasn’t a racer, but a Kawasaki or Suzuki road bike.  He was still very impressed with the acceleration.  Then I let him know, it cost me less than a penny per mile to drive and he took my card. :)

Yes and no.  It depends on how you drive it.  I have an 8kw 72v 41.6AH E-Enduro and I can get over 60miles a charge.  It can get me to 61mph, but doing that acceleration drains the battery, the same way stomping on the gas at a stop light will reduce your ICE mileage.  When you start using them you realize the…

This is currently being worked on.

The lower range is with one battery.  Two will get you double the range.  We sell these at www.e-powersport.com and the lowest priced best supported ebikes on the market.