Great Product. Well built! Buy a 20 ah or more battery for it and it will get you around for 2 hrs! Goes very Fast but keep in mind there is no reverse with this unit. The throttle is for the left hand as well just so you know! Also make sure You get atleast 2 wire splices for the battery hookup! You'll be a step ahead if you do.
The motor is very harsh and vibrates violently. I've owned 3 other ebike hub motors and this one doesn't even provide half the acceleration as the others, although, top speed is similar.