| 摘要 |
<p>The derailer has a chain guiding unit (1) provided with an inner guide plate (2) and an outer guide plate (3), where the outer guide plate has an inner contour (4) with a guide surface (5). The guide surface covers the chain distribution to chain rings, where the breadth of the guide surface in a chain running direction is larger than the distance of consecutive outer plates of the chain. The guide surface has a constant elevation compared to the outer surface of the outer guide plate.</p> |
