No, behind Adliswil there is a small, unpaved path on the left side of the Sihl and a paved but interrupted and a bit curvaceous bicycle path on the right. Nothing for road bikers really, but the left side is interesting for those who favor unpaved routes.
These two routes, especially the lake tour, are better choices for you:
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| When I just want to eat some kilometers but no altitude I cycle around Lake Zurich. Zürich - Rapperswil - Zürich is about 67 km and if you do it clockwise, there are only a few traffic lights. There is a tarred bicycle lane, only in Zürich you'll have to be considerate of pedestrians sometimes. During weekends, there is more car traffic during weekends. There are tours with better views but hey, nothing against Lake Zurich! 
Western Zürich (Tram stop Triemli) - Waldegg - Sellenbüren - Stallikon - Türlen is a route with ca. 250m altitude difference. Without hurry it's 60 minutes (respectively 50 minutes back to Zürich). In Türlen you have the opportunity to take a swim in the lake, or wander around the lake in a preserve area (no bicycling allowed) or to go to a restaurant, so it's a reasonable destination. 75% with bicycle lane and a few tight curves. | |
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