| 摘要 |
<p>The invention refers to a sprocket-carrying body (100) for a rear wheel of a bicycle, comprising: a tubular body (101), suitable for externally receiving a plurality of sprockets; a plurality of ribs (1,2,3,4,7,8,9) at an outer surface of the tubular body (101), said ribs (1,2,3,4,7,8,9) extending in a substantially axial direction between a first end portion (102) of the tubular body (101), suitable for to receiving sprockets with a larger diameter, and a second end portion (103) of the tubular body (101), suitable for receiving sprockets with a smaller diameter. In order to reduce the weight of the sprocket-carrying body (100) at least one rib (1,2,3) comprises a portion with reduced cross-sectional area (21,22,23) with respect to the cross-sectional area of said rib (1,2,3) at said first or said second end portion (102,103) of said tubular body (101) .</p> |
