Here's an impressive back flip Kain Saul performed on an XR1200. I reached out to the dealer to find out what they did to the bike. Here are the modifications they made: STD Harley Street rod shockers Tag handle bars Strengthened triple tree Power front forks with heavier springs and valving Chain drive but standard swing arm KTM front master cylinder and rear brake pedal removed Knobby tires Everything else was stock.