Where’s Batman FacebookTweetPin The Custombike concept is a hybrid bike that is powered by a lithium-ion battery. The chopper-style motorcycle features a thermal engine and HERS system for regenerative braking. FacebookTweetPin Related Posts 2004 Big Dog Chopper Thunder Beach Fall Rally | Motorcycles Green and Lean Custom Chopper 2011 Rocketeer Bobber | Motorbike Flat 4 Honda Custom Design 2007 Custom Chopper