Flying Horse Stage 1 Motorized Bicycle 2-Stroke CDI Electron Ignition Coil &ndash; Gas Bike Electrical Ignition Upgrade RELIABLE SPARK: The Flying Horse Stage 1 CDI is equipped with an NGK spark plug cap and performance spark plug wire which gives you less resistance and power loss than your stock CDI. This increases the efficiency of your engine and overall spark output. BOOSTS PERFORMANCE: With a stronger spark comes increased combustion resulting in less unburnt fuel, higher torque and top speed. SMOOTHS FIRING: Consistent spark will provide cleaner combustion at higher speeds and an overall smoother ride. EASY INSTALATION: Just disconnect your old CDI and plug in your new Stage 1 and your good to go. No adjustments or tuning necessary. UNIVERSAL FIT: Compatible with most 48cc, 60cc, 66cc and 80cc 2-stroke bicycle engine kits