With this coil / CDI unit, suitable for the Vespa / Piaggio 4T2V models, not only does your speed go up significantly (towards 60) but you also immediately have an adjustable limiter.

So whether you want limited 45 (because you have a moped scooter) or 25 is a matter of just adjusting with the screw. Another advantage of our CDI with limiter is that you can simply turn the limiter function on and off while driving by remote control!