Thunder CDI for 48cc 66cc 80cc - High Performance

Upgrade your CDI to this high powered Lock secured unit. Keys used to disable the CDI from firing to add some security to your bike. What you need is more spark. This easy installation will give your motor the power it craves.

- High-Performance Part
- Easy, fast, secure installation

* Orders received Monday - Friday by 12:00 noon PT are eligible for
Same Day Shipping! Except for USPS which ships the next business day.

Our gasoline operated products are NOT compliant with Environmental Protection Agency ( E.P.A. ) or California Air Resources Board (C.A.R.B) for the use on/off Public roads. Upon purchase, the buyer agrees to use products for racing (closed-course competition) only and NOT for on/off public roads.

If you need help with installation or troubleshooting, kindly use our Builder Locator to find builders near you. Builders are experts with motorized bicycles.