3 types of bicycle lanes in Montreal
Segregated bike-lanes for the more important ones, most of them in the downtown area (Maisonneuve, Berri...)
paulhilldson.com
"Semi-segragated" lanes for other important paths in other areas of the city (Rachel...)
www.streetsblog.org
Other bike-lanes (Saint-Urbain...)
lloydalter.typepad.com
Finally, a map of the bike-lanes network in Montreal (sorry for the large size)
The most impressive is probably the one along the Saint-Lawrence river and Canal Lachine that goes all the way from Old Montreal to the western tip of Montreal island, and the other one that stretches along the Saint-Lawrence Seaway in the middle of the river and then to the islands, with a breataking view of downtown on your left.