M-Racing Unrestricted CDI – Derbi Euro 4 (Aprilia, Gilera)

The stock CDI on a 50cc Derbi Euro 4 is factory-restricted to meet emission regulations, capping your bike's power and top speed. This M-Racing unrestricted CDI removes that limit and gives you full engine output.

Installation:

Fitting is Plug & Play: unplug the stock CDI, plug in the new one, done. No special tools, no soldering. Keep in mind that on Euro 4 bikes the CDI is not the only restrictor; a cylinder kit or sports exhaust may be needed for a full unrestriction.

Compatibility:

• Derbi Senda X-Treme
• Gilera SMT
• Aprilia SX

Benefits:

• ⚡ Electronic restriction removed, full power restored
• 📈 Higher top speed
• 🔧 Plug & Play fit, no wiring changes needed
• 🎯 Essential step before fitting a cylinder kit or sports exhaust

Note: this CDI is designed for Derbi Euro 4 engines. On Euro 4 bikes, other restrictions may remain after swapping the CDI.