| 摘要 |
<p>A bicycle frame of new kind that may receive and allow the rotation of a device for improving the efficiency of the push on the pedal of competition bicycles and similar, wherein the bicycle frame allows the functioning of a device (1, 17) for improving the efficiency of the push on the pedal due to the presence of a rear fork FP comprising two arms (B 1, B2) linked, respectively, to the hub (M) carrying the pedals, and to a housing (1) receiving and allowing the rotation of said device.</p> |
