Compatible: 4 pin CDI fit for most of most 50cc 70cc 90cc 110cc Scooter ATV DY100. Produced according to the original factory standards, it fits perfectly with the size of the fitted model and can be purchased and used with confidence. Premium Quality: Made of high quality material, it is very durable and safe to use. Function: This DC fired CDI will eliminate rev-limit which keeps your bike restricted, and also reset your ignition advance curve for better acceleration. Excellent Performance: This unit will give you 5-10 miles speed boost on your bike and all you need to do just plug it on. Perfect Replacement: original standard, a perfect replacement for the broken one. Specifications: Condition: Brand new and high quality Material: Metal, plastic Connection Type: 4 pin Color: As picture shown Weight: Approx. 121g Package includes: 1 * CDI Box