This kit comes with everything you need to convert your bicycle to an E-bike. Here's the packing list:

1.1 x Fatbike Motorized wheel 

2. 1 x Battery

3. 1 x Controller + Charger

4. 2 x Power cut-off Brake lever / sensor

5.1 x Thumb / Twist Throttle

6. 1 x Display

7. 1 x PAS Sensor

Kindly leave comments in this format when place an order(without comments we regard as all defaul):

1. Wheel size:   20" / 26"(default)

2.  Rim width: 8cm(default)/ 10cm

3.  Brake:  a.lever(default) / b.sensor

4.  Throttle:  a.Thumb(default) / b.Twist

5.  PAS: a. V12L(default)/ b. BZ-4 / c. BZ-10C / d.D12L

There are 2 options

There are 4 options

1.V12L(default)

2.D12L

3.BZ-10C

4.D12L

There are 2 options 

1. Power cut-off brake lever(default)

2. Power cut-off brake sensor

There are 2 options when you choose set with display

1. Thumb throttle(default)

2. Half twist throttle

There are 2 options when you choose set without display

1. Thumb throttle with on/off switch(default)

2. Twist throttle with on/off power lock