Known from the race track - chassis stiffeners are great from the technical point of view and also give your scoot a dramatic race optic. They come as 2 high-quality, anodised metal bars, to be mounted below the handlebar. There are special ones for MBK Nitro/Yamaha Aerox and Peigeot Speedfight I+II, and a universal fitting version for every scooter model.
A detailed mounting instructions comes with the struts.