You don’t like the idea of riding your bicycle all over the city, cause the city seems too big, too dangerous, too much traffic?
There’s help:

BBBike is a route planner for cyclists in Berlin. All you need to do is enter your starting address and you destination and its finds the best rout to go. There are several choices, like bike lanes only, no big streets etc, your preferred speed etc. It also generates a map, again with several options.
Of the 10000 streets in Berlin more than 8750 are available for searching, also 400 streets in Potsdam. If a street is not available, then the nearest crossing will be used automatically.
It’s an excellent tool to help for finding your way around the city – and it’s free!
You can use it online or download it to your computer.
Many Thanks to the author, Slaven Rezic!