What's the best controller to use

can somebody tell me what would be the best controller to use with cromotor. I want to get the top speed that I can get out of this motor but I also want it to be dependable what's the best controller and battery pack voltage to use.

Adaptto. You can get it from official site, allex and artur (vectorbikes).
20s or 22s are the usual setups for battery.
http://adaptto.com/
http://adaptto.envolt.se/
http://www.vectorebike.com/