Burisch electric bike is in good condition only a few minor scratches & marks. Battery always kept charged. The Burisch Synergy GT250 electric bicycle is a cutting edge 2015 design with many top quality components from the likes of Shimano and SR Suntour. It hosts a fully hand built aluminium frame, lithium ion battery and brushless motor technology. The bike can be operated in three modes, un-assisted, dynamic assisted, and full automatic mode.