This new version of Ducati's Naked Bike uses the water cooled 4 valve/cylinder 916cc engine from the ST4 instead of the standard Monster's air cooled 900cc engine, giving this sweet machine 101 HP instead of 77 HP. It also uses the ST4's more advanced frame for much better handling. Lots of torque too... for pulling wheelies. Waiting on the break-in before that though.