I’ve got a Niu NQI sports but the…
I’ve got a Niu NQI sports but the battery is broken and iv tried contacting them about a new battery but they haven’t got back and ive only had it for 6 months and it goes 30 miles per hour and Where I have to go everytime for work is a fast road that is 50 to 60 miles per hour would it be possible to make the bike go a bit faster