FSA Energy Clincher Road Wheelset. The Energy is FSA's lightest all-aluminum clincher road wheelset. Not to take anything away from the FSA Omega or Gossamer aluminum wheels, the Energy takes the balance of weight and stiffness even further. With performance on a par with some of the best aluminum wheels out there today, the FSA Energy wheelset is versatile enough to put into service for both training and race-day duties. The Energy road wheelset is based on an alloy clincher rim with a CNC-machined braking surface. CNC-machined aluminum hubs have 17mm diameter hub axles fitted with two sealed bearings up front and four on the rear wheel, for smooth-rolling performance. The hubs are laced with aerodynamic bladed spokes, 20 up front, laced radially, and 24 rear, laced radially/2x. What the standard-profile rims lack in aerodynamics they more than make up for in stiffness, responsiveness and rock-solid stability in even the heaviest cross winds. The Energy wheelset weighs in at a respectable 1,650g without skewers. They offer fast acceleration, both off the line and when you're reaching for something extra in a sprint. They're highly responsive, handle even the slightest rider input without hesitation, and corner like they're on rails. Any wheelset that can do all that is a clear winner in our book.