Welcome to our store！</br> 1、The controller shell is made of aluminium alloy with groove design, which can protect the inner circuit and has good heat dissipation feature to avoid thermal overloading. 2、This product is a brushless motor controller, it can provide steady speed and sensitive control of braking and direction changes. 3、The wires and interfaces are durable, and ensure low malfunction of long time use. 4、The cables have different colors for your easily installation. 5、Suitable for mountain road bike. <div class="wang-edit-text"><span style="font-family:Arial;font-size:16px;">Features:</span> <span style="font-family:Arial;font-size:16px;">1.The controller shell is made of aluminium alloy with groove design, which can protect the inner circuit and has good heat dissipation feature to avoid thermal overloading.</span> <span style="font-family:Arial;font-size:16px;">2.This product is a brushless motor controller, it can provide steady speed and sensitive control of braking and direction changes.&nbsp;</span> <span style="font-family:Arial;font-size:16px;">3.The wires and interfaces are durable, and ensure low malfunction of long time use.</span> <span style="font-family:Arial;font-size:16px;">4.The cables have different colors for your easily installation.</span> <span style="font-family:Arial;font-size:16px;">5.Suitable for mountain road bike.</span> <span style="font-family:Arial;font-size:16px;">Specification:</span> <span style="font-family:Arial;font-size:16px;">Condition:Brand New</span> <span style="font-family:Arial;font-size:16px;">Material: Aluminum alloy</span> <span style="font-family:Arial;font-size:16px;">Color: as pictures shown</span> <span style="font-family:Arial;font-size:16px;">Brake: V brake/disc brake</span> <span style="font-family:Arial;font-size:16px;">Controller: 36V/48V universal</span> <span style="font-family:Arial;font-size:16px;">Suitable for 1000W 1500W motor</span> <span style="font-family:Arial;font-size:16px;">Motor mounting opening: the front drive opening is 100mm, the rear drive opening is 135mm</span> <span style="font-family:Arial;font-size:16px;"><span class="ui-risk_flag6" style="">Package</span> list:</span> <span style="font-family:Arial;font-size:16px;">1 x Brushless Controller</span> <style> .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }</style></div> Satisfaction - Our customers are our top priority. If you find any product problems after receiving the goods, such as damage and incorrect quantity of goods, please contact the seller immediately. We try our best to provide you with satisfactoryaftersalesservice</br>