Jay Leno walks away quite impressed after his ride on the Royal Enfield Musket. The modern bikes turns the vintage Bullet into a V-twin, and engineering the conversion is all the work of just one man.

Royal Enfield Super Meteor 650, and the Kawasaki Vulcan S. The weight, meanwhile, lies at just 441 pounds, which ensures a top speed of 106 miles per hour. Engine 578cc, V-twin, liquid-cooled ...

So, too, is Suzuki’s 645cc V-Twin found in the SV650 ... I am, of course, talking about Royal Enfield’s 650cc, air-cooled, fuel-injected, 270-degree parallel-twin. And if you’ve never ...