The greatest ride in Sydney is from Berowra on the old Pacific Highway,(don't take the new Pacific Motorway the M1). There's a great shop with ample seating along the way called Pie In The Sky, if you don't find a dozen or so bikes there on any weekend its raining. Follow the Pacific highway to Calga, that whole run is amazing both ways.
Watch your speed the cops make a killing on this road.
Another great ride is from Windsor down to Wisemans Ferry over the ferry and out through Spencer along the river and up to Central Mangrove through Peats Ridge then Glenworth Valley to Calga back along the old Pacific Highway to Berowra then down to the Berowra Waters ferry and back to Windsor, 2 ferry rides in one trip, my Mrs loves that ride lol.
Like Molly Meldrum says "do yourself a favour" and ride these roads, Google will help you out with the route but if you get stuck and need to pick my brains Im okay if you PM us in here, I'll help out with directions and info anyway I can.
Stay safe and keep the shinny side up. Steve.