Feature 15 pin CDI for most of 50cc 70cc 90cc 110cc motorcycle, dirt bike, scooter and ATV 2Increase ignition energy intensity for easy starting and smooth riding 3Eliminate rev-limit which keeps your bike restricted, and also reset your ignition advance curve for better acceleration 4This unit will give you 5-10 miles speed boost on your bike 5Easy to install, just plug it on. A good replacement for the original broken oneFeatures: 5 pin CDI for most of 50cc 70cc 90cc 110cc motorcycle, dirt bike, scooter and ATV. Increase ignition energy intensity for easy starting and smooth riding. Eliminate rev-limit which keeps your bike restricted, and also reset your ignition advance curve for better acceleration. This unit will give you 5-10 miles speed boost on your bike. Easy to install, just plug it on. A good replacement for the original broken one. Specifications: Condition: 100% brand new Material: metal, plastic Color: shown as picture Size: 65 * 37* 22mm / 2.2 * 1.5 * 0.9in Connection Type: 5 pin Package Weight: approx.96g Fitment: for most of 50cc 70cc 90cc 110cc motorcycle, dirt bike, scooter and ATV Package List: 1 * 5 Pin CDI Box Note: It is easy to install, but professional installation is always recommended.