| 摘要 |
The invention relates to a device which eliminates the drawbacks of footstraps passed under the pedal. It consists of a guide (5) inside the crank (1). Circulating inside this guide (5) is an endless chain of balls (2). The bottom bracket assembly fitted to the device includes two fixed pinions (3), one per crank. The pedal (10), fitted to the device, includes a pinion (4) with the same toothing and same number of teeth as the pinion (3). During the rotation of the crank (1) the pinion (4) retains its angular position. The connection between the pinion (4) and the pedal (10) allows the latter to describe the angle (11) freely. The device according to the invention is intended for all types of bikes, all-terrain bikes, and cyclocross bikes. <IMAGE>
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