<B>Customer Note: <br> We Only Provide Controller Wiring Instructions for This Motor Kit. <BR>You Need to Have Some Hands-on Ability and Knowledge to Complete The Installation. <BR>If Necessary, You Can Go to Youtub and Search for "kunray 72v3000w motor kit" to Get the Test Install Video for Help. <br>Please Read Carefully Before Buying, Thank You.</b> <b>Kunray 72V 3000W BLDC Motor Kit Introduction</B> <br><br><b>*About Motor:</b> <br> <b>Motor Type:</b> Brushless High Speed DC Motor <br><b>Rated Voltage</b>: 72VDC <br><b>Rated Power(Watt):</b> 3000W <br><b>Rated Current:</b> 45A <br><b>Rated Speed:</b> 4900r/min (MAX 5800RPM) <br><b>Toque:</b> 5.4N.m <br><b>Sprocket:</b> T8F 11T Chainwheel, Fit For T8F Chain. <br><b>Material：</b> High Quality Aluminum Motor And High Qulity Rotor Magnet All Copper. <br><br><b>*About BLDC Controller:</b> <br><b>Voltage:</b> 48V-72V <BR><B>Proctec Vol:</B> 42V <br><b>Power:</b> 3000W <br><b>Current:</b> 50A <br><b>Mosfet:</b> 24Mosfet. <br>Phage Degree: 120. <br><b>Function:</b> Reverse, Speed Control, Three Speed (High/Low Speed)，Slef-Study, <br>High/Low Level Brake, Hall Sensor, Power Lock , Anti-Theft, Brake Cruise, Hard Start. <br><br><b>*About Handlebar Twist Throttle:</b> <br><b>Rated Voltage:</b> 12-72V Universal. <br><b>Input Voltage:</b> 1.1-4.7V <br><b>Material:</b> High Quality Rubber Handlebar Grips. <BR><BR><B>*About Shipping:</B> <br>Express Delivery by DHL UPS FEDEX SF etc Fast Air Shipping. <br>Delivery Time About 5-15days(normal 5-7work days about). <br><br><b>*Motor Kit Suitable For: </b><br> Electric Scooter, Two Wheel Balance Scooter, E-Bike Electric Motorcycle, <br>Go-Cart, DIY Engine, Etc.... <br><br><b>About Shipping:</b> <br>Shipping by DHL FEDEX SF fast express ,delivery about 5-10work days.