More travel front and rear, burlier components, and a dropper seat-post transform Cannondale's ultimate XC race machine, the 2019 Cannondale Scalpel-Si Carbon SE into the ultimate fast trail slayer; meet the Scalpel-Si SE. OutFront Steering Geometry gives you the best of both worlds: slack and stable on hectic descents, yet quick and nimble everywhere else. Unbelievably rigid and precise, Lefty out-corners, out-handles and flat-out rides circles around its flexy XC competition. Its custom extra-long fork offsets (rake) makes Cannondale's OutFront Steering Geometry possible. Proprietary Ai offset drivetrain delivers super short chainstays for climb-winning traction and agile handling, without sacrificing mud/tire clearance or limiting you to single ring set-ups.