| 摘要 |
The subject of the invention is an integral traction cycle 1, of the type comprising a central power take-off, fitted with one or more chain rings 5, connected mechanically to one or more sprockets 7 arranged on the hub 8 of the rear wheel 3, on which is envisaged the first mechanical means of transmission of the motion arranged on the hub 8 of the rear wheel 3, from the side of the latter opposite the one on which said sprockets 7 are located; first means 9, 21, 25 of transmission of motion from said first mechanical means of transmission to the second 14 mechanical means of transmission, arranged in correspondence with the head tube 13 of the cycle's 1 steering; a second means of transmission 16, 17, 19, 22, 23 of motion from said second means of transmission 14 to the hub 18 of the front wheel 2 of the bicycle 1; the transmission ratio between the front wheel 2 and the rear wheel 3 being about, but not obligatorily 1:1, varying on the basis of the "grip" you want to have on the front wheel. <IMAGE> |
