Bests & Worsts Reviews from Amazon

Very good electric motor. I use at 50v 20ah battery for this kit. I enjoy cruising around the park and neighborhood on weekends. I also commute to work using this kit. The fastest you can go on level ground is 32mph with this 1000w motor. It will accelerate to 32mph quickly. When I use it at 32mph, the battery will die in around 30-40mins but I usually cruise at 20mph when going to work anyway. The highest speed recorded was 42mph but that was when I was going downhill. The speedometer and odometer have lag on it. It doesn't start counting the distance immediately but that doesn't matter to me. It has very good torque. The throttle is very sensitive. This bike will get you going fast. I weigh 180lbs when wearing my backpack with my college textbooks, laptop, and water bottles. I'm unsure how the motor will respond if you weigh over 200+lbs. This conversion kit fit right onto my Giant Warp DS2 perfectly. Easy and perfect installation. I gave it a 4/5 instead of 5/5 because of one issue. The only issue i've experienced with this kit is that the motor will randomly shut off while I am riding sometimes and I have to turn it on again. I've checked my battery connections and they are secure so it was must have to do with the motor/controller. This does not happen often(only 1 time this month, 2 times last month). This could be dangerous if you are riding in traffic and the motor cuts off at the wrong place at the wrong time.