Customized Speed Release Cables (40km/h):These speed release cables are specially designed to unlock up to 40km/h for compatible Ninebot electric scooters, offering improved riding performance when used in appropriate conditions. Precise Fit for Ninebot F-Series:Compatible models include Ninebot F3 and F3 Pro Eelectric scooters. The cables are tailored to match the original interface and routing, helping ensure stable installation and reliable connection. Speed Unlock Lines & Performance Parts:Engineered as dedicated speed unlock lines, these parts support more agile acceleration and higher speed potential. They are suitable for riders who need higher efficiency for commuting or long-distance cruising on suitable roads. Durable Construction & Stable Signal Transmission:Made from robust materials to withstand frequent use and varying riding conditions, the cables deliver stable signal transmission between the scooter controller and related components for consistent performance. Application & Usage Notes:Intended for use with compatible Ninebot F3 F3 ProE electric scooters only. Please confirm your scooter model before purchase.(not use for German version) Color: Black Material: plastic Package Contents: 1*Speed Release Cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.