Everybody is looking for a faster electric Scooters but faster unfortunately comes with a price, you will feel a steering wobbling at higher speeds. One thing you MUST add to limit this wobbling (if your scooter don't have one already) is a steering damper.
This Steering damper for Viper dual is suitable scooters like our Rebel, the FLJ, the Janobike and others with similar suspension (C suspension). 
 
We can provide some guidance on how they must be fitted but the brackets need to be drilled on the suspension but we would suggest that you seek for professional help in order to be fitted correctly.