You've put in the miles, honed your training to perfection, and now it's time to race. The Litening AERO C:68X SLT is the bike you'll need. Built around our even lighter and more efficient C:68X® carbon aero chassis, it features Shimano's Dura-Ace Di2 2x12 gears paired to a Dura-Ace chainset with 4iiii power meter, for precise gear changes literally at your fingertips. A Newmen Streem Aero/Sprint 60/66 Vonoa wheelset with a lower profile up front gives predictable handling combined with aero performance, even in windy conditions. Tubeless-ready 28mm Schwalbe Pro One Aero tyres serve up rapid acceleration with the grip that you need. Powerful, progressive Shimano Dura-Ace Di2 hydraulic disc brakes mean you can brake later, to maintain your speed for longer. And the bike's low overall weight and day-long comfort help ensure you'll perform at your peak, hour after hour.