Advice for new ebike

Hi, I recently lost an ancheer mountain ebike, I believe it was 250w with a 36V battery. It also had the control centre wiring in this little black case attached on the back of the frame where I could unplug a white wire(I believe this was speed controller) in order to make it faster allowing me to have an average pedal assist max speed of 28km/h, sometimes even getting to 32/33km/h. My bike was stolen but I still have the battery luckily so I was wondering if there are ebike recommendations so I can get the same experience and same speed or if there are any conversion kits people would recommend so I don’t need to spend extra money on a bike with a brand new battery as I already have one. I know that with roughly the same specs I should be able to have the same experience as my old bike but I need to make sure that the control centre is not limiting the max speed as 15mph just won’t cut it for me, the 28+km/h made all the difference. Attached is a pic of my old bike just so ppl know what I’m kinda looking for. Ideally if someone could recommend a conversion kit with no speed limiter or a speed limiter that can be adjusted to allow the motor to work at max capacity would be very helpful for me.

Thanks

Hi, I recently lost an ancheer mountain ebike, I believe it was 250w with a 36V battery. It also had the control centre wiring in this little black case attached on the back of the frame where I could unplug a white wire(I believe this was speed controller) in order to make it faster allowing me to have an average pedal assist max speed of 28km/h, sometimes even getting to 32/33km/h. My bike was stolen but I still have the battery luckily so I was wondering if there are ebike recommendations so I can get the same experience and same speed or if there are any conversion kits people would recommend so I don’t need to spend extra money on a bike with a brand new battery as I already have one. I know that with roughly the same specs I should be able to have the same experience as my old bike but I need to make sure that the control centre is not limiting the max speed as 15mph just won’t cut it for me, the 28+km/h made all the difference. Attached is a pic of my old bike just so ppl know what I’m kinda looking for. Ideally if someone could recommend a conversion kit with no speed limiter or a speed limiter that can be adjusted to allow the motor to work at max capacity would be very helpful for me.

Thanks