安装携带拖拉机的横向组件后轮轮一侧的帧的帧（20）（10）上在路线（A）具有可调节的驾驶室（30）和一个马达（31）跨式拖拉机（1）和 具有管状梁（6a）中横向穿过所述框架，用于固定在侧框架（10）接收所述牵引车的移动元件，所述可变形的纵向平行四边形（图4a，4b，4c，4d的形式移动具有拖臂元件 ）布置在竖直平面中并且将具有轮子的腿连接到侧框架（10）并且支撑承载拖拉机的轮子（40）的腿（7）。 平行四边形由在轮架腿（7）的轮轴（41）的接收护套处的第一分支（4a），侧框架的第二分支（4b）和两个分支 在框架的分支部分与承载轮轴的分支（4a）之间纵向的连接连杆（4c，4d），连接腿（4c，4d）铰接在承载 腿的轴线和框架的分支（4b）部分上，使得平行四边形是可变形的。

Straddle tractor (1) in route (A) having an adjustable cab (30) and a motor (31) mounted on a frame (20) of the side frames (10) carrying a lateral assembly Rear wheel wheel of the tractor and having tubular beams (6a) laterally through the frame for fasten the side frames (10) receiving the moving elements of the tractor, said moving elements having trailing arms in the form of longitudinal deformable parallelograms (4a, 4b, 4c, 4d ) arranged in a vertical plane and connecting the wheels doors legs to the side frames (10) and supporting legs (7) bearing the wheels (40) of the tractor. Parallelograms are constituted by a first branch (4a) at a receiving sleeve the axis (41) of the leg (7) wheel holder, a second branch (4b) of a side frame part and two legs link (4c, 4d) between the longitudinal leg portion of the frame and the leg (4a) carrying the wheel axle, and the connecting legs (4c, 4d) are hinged on the leg (4a) bearing the axis of the leg and the leg (4b) of the frame so that the parallelograms are deformable.