Device for raising seat of bicycle i.e. BMX, has part comprising variable length, and diameter, and external part with diameter and length, where external part is deformable to interior of device, and slot provided at specific length
摘要
<p>The device has a part comprising a variable length (a'), and a diameter (d), and an external part with a diameter (c) and a length (a), where the external part is deformable to the interior of the device. A slot is provided at a specific length of the external part, where the slot is directed to the interior of the device. The length of the part and the length of the external part are provided as a function of the diameter. The diameter of the part corresponds to the diameter of a rod of a seat.</p>
