In Graz, we do love to use bikes to get around town. It's the fastest, most flexible and environmentally friendly mode of transport available. There is many cycle paths available and Google maps mostly does a good job in helping you find the best and safest routes. On the website of the City of Graz, you can find a cycling map of Graz as well: Cycling map (link). Graz Tourismus offers a useful compendium of everything you might need to know if you want to jump on a bike in Graz: Cycling in Graz (link).