Terol Jiang

hello, you can purchase the Bafang rear wheel hub motor kits, it including all the ebike components, like rim motor, controller, display, speed sensor, cutoff brake, throttle, ect.

yes, agreed. 48v is forceful than 36v, especially for climb if the force do not enough, bike move like a turtle

yes, i consider that DIY a bike to electric bike much cheaper, electric motor & battery total costs need about £600. if enjoy riding, TSDZ2B torque sensor mid motor kits is the best choice, if just instead of walk, wheel motor conversion kits is ok, as the costs of this type is the lowest (must have in store in your country, the shipping costs is very high). PS: TSDZ2B mid motor is special for MTB and off road bike.

yes, 68/73mm is the bottom bracket length (also called BB size) of the bike, i also know there is also have BB100MM and BB120MM in the market. usually the length of the crankset is about 170mm, so what 122.5mm means? Curious!!

does the motor working well now?

oh dear, what we do is use our professional knowledge to help customer solve problems. And we have a new type mid motor, it can work on 36v, 48v and 52v voltage, the display can show the instant working voltage. Of course the price expensive then normal type TSDZ2B/TSDZ2 mid motor. Regarding the battery, you can purchase on Aliexpress.com, which supplier has oversea warehouse, then you can reduce the costs. the picture you show last time is pack type, also attached bottle and polly type pictures.

Oh sir, of course we do not suggest customer use 48v battery to drive 36v motor. we always insist use the matched-voltage battery to drive the motor. if customer has a 48v battery at hand, and he want to save money, want to use it to drive the 36v motor, we must let he know the limited conditions of the battery.

We test this use Hailong 18650cells 13series 48v ebike battery. 48V battery can drive 36v motor. if other battery, maybe it cannot drive the 36v motor. the best choice is 48v battery drive 48v motor.

if your battery is 13series 48v battery, the motor controller will control the ampers, so it canuse to drive the 36v motor.

Hello, 36V TSDZ2 motor can use 48v battery, 48v mid motor must need 48v battery. you can use 48v 9Ah battery, but the BMS of battery need more than 30A, if not, it cannot drive the motor. Sure you only can choose downtube type battery, polly and bottle both ok.

The gear has a problem, you need to use a new to replace. the TSDZ2 mid motor gear you need likes this