Banff to Lake Louise via Bow Valley Parkway | Road Biking | 115 KM Ride | 

This is the most popular ride for road cyclists in the Bow Valley, and one of the very best road-biking rides in Canada. The Bow Valley Parkway, or Highway 1A, is the old highway between Banff and Lake Louise, and has relatively little traffic.
There are a few good hills along the way in both directions. You are gaining elevation overall on the way to Lake Louise, and generally have a headwind on the way there, which usually means a tailwind on the way home (no guarantees!).
Castle Junction (30 km), Baker Creek (45 km) and Lake Louise (58 km) all have rest stops with food, bathrooms and water refills, and can also serve as good turn-around points depending on how far you want to go.