6 or 8 tires for the V16 model – 9 tires for the V18-V20-V24 models – sturdy structure – flexible and independent frame (V18-V20-V24) – drawbar that shortens hydraulically during work – simple and functional system for regulating the pressure of the finger wheels on the ground – variation of the working angle of the last 2 finger wheels – hydraulic self-steering system with possibility of varying steering incidence – hydraulic central finger wheels kit (optional) – 7th-8th front wheel kit (only V16).