Parts Including in this kit:
1. 36V 1000W / 48V 1200W /52V 1000-1500W Brushless Gearless Rear Hub Motor Wheel (without tire and tube)
(with thread-on 7-speed freewheel. Reinforced double-layer aluminum alloy rim,12G reinforced black spokes, 3mm2 Motor Extension cable with waterproof plug)
Wheel Size Options: 20x4.0" or 24x4.0" or 26x4.0" Rear Wheel
2. 36V/48V/52V 35A 3-mode sine wave controller (support both hall sensor motor and non hall sensor motor)
3. 24V/36V/48V/52V TFT UKC1 Color display
4. 81X Half-bar Twist Throttle with lock and key/ Or Full Bar Twist Throttle/ Or Thumb Throttle
5. 2 pcs Brake Levers (Left + Right) with electric brake function / Or Brake Sensor only/ Or 4-piston Hydraulic Disc Brake
6. PAS Pedelec Sensor
7. Controller Bag
 

Motor Specification:
1) High Motor Efficiency: max 88% (Save Power)
2) Torque: max torque 40 N.m.
3) RPM: max 480
4) Max Speed: 50-55km/h (different road&weather condition and rider's weight will have different speed)
5) Hub Width (Frame dropout requirement for 7-speed): 175mm or 190mm rear thread-on hub motor
6) Support standard 6-hole type disc brake
7) Rear Wheel with Shimano 7-speed freewheel
 

Controller Specification:
1) 36V/48V/52V 35A 15 MOSFET 3-mode Sine Wave Controller
2) Rated Voltage: DC36V/48V/52V universal
3) Rated Current: 17A
4) Max Current: 35 +/- 1A
5) Rated Power: 36V 612W/ 48V 816W/ 52V 884W
6) Peak Power: 36V 1260W/ 48V 1680W/ 52V 1820W
7) Speed set: 1-4.2V
8) Brake Input: Low Level
9) Low Voltage Protection: DC30V/40V/43V +/- 0.5V
8) Compatible with our LCD Display or without Display (need to plug LCD jumper connector)
9) Size: 212x86.5x48.5mm
10) Weight: 0.61kg

UKC1 Color display Specification:
1)  24V-72V universal
2) Function: max 5-speed level PAS, speed display, speed limit, Cruise, 5-speed level throttle, optional Regenerative braking function
3) With press key button: Up, Down, Power 
4) Can be vertical or horizontal
5) 5V USB Output

Advantage:
1. Sine Wave Controller which support 3-mode (hall sensor mode, non-hall mode, self-learning) and smart match with each motor through self-learning, works with high efficiency, less noise, and lower energy consumption, which makes your electric vehicles or electric motorcycles more comfortable and easier to control, give you best pedal experience
2. Universal Input Voltage Range: 36V/48V/52V
3. Work with or without display
4. Parameter setting via display
5. All protection make it long life and safe: over/under voltage, over current, over load, over heating, anti-runaway, locked-motor protection
6. Multi functions: Work with hall sensor mode or non-hall mode, smart match with different motor, 5-speed level for throttle and PAS, Speed limit, Reverse, Cruise, Push Assistant, Anti-thief, Regenerative Braking, Electric Braking and etc.
7. Best heat sinking with Aluminium Case
8. Black anodized Aluminium Controller Case against scratch
 

Installation Guidance:
1) Unscrew the existing rear wheel screws, remove your rear wheel;
2) Install the motorized wheel and fasten screws;
3) Fix LCD, Brake lever and throttle;
4) Fix PAS at left side (If you don't need PAS, you can also don't install it).
5) Put Controller at suitable position and connect all wires.
6) Turn on battery, throttle key and LCD, set correct value from LCD
Correct wheel size setting: according to your wheel size
Correct max speed setting: set it at max value 75
Correct motor magnet pole quantity 46
Save all value and restart LCD display