When heading around a curve, this both forces one of several wheels to slip, if possible, to harmony the obvious distance covered, or results in uncomfortable and mechanically stress filled wheel hop. To stop this, the wheels are permitted to change at unique speeds utilizing a mechanical or hydraulic differential. https://groupak.gr/product-category/neo-peristrefomeno-rolo-alouminiou-revolver-me-epistrosi-vinyliou-apli-leitourgia-choris-michanismous-100-ekmetallefsi-tis-karotsas-revolver-roll-series/