At CUBE we know that every second counts. That's why, with the Litening AERO C:68X Race, we've built a UCI-compliant race bike around a frame that's reduced drag by 30% – and fitted a crankset with a power meter. Newmen Advanced wheels feature aero profiles with a shallower profile at the front to reduce the effect of crosswinds. Shimano's Ultegra Di2 2x12 transmission is sleek, wide-ranging and incredibly reliable. And matching Ultegra hydraulic disc breaks allow you to go even faster, because you can brake later. No doubt about it – it's fast.

Frame description
Rules are rules. A race bike needs to conform in order to qualify for UCI-sanctioned races. But designing a frame that's significantly more slippery through the air, without breaking the rules? That's completely legit. The Litening C:68X's lightweight carbon chassis – built with our premium C:68X material – was designed with extensive use of Computer Fluid Dynamics and real-world wind tunnel testing. The result is a significant 30% reduction in drag, in a fully UCI-compliant frame that elegantly integrates fork, stem, handlebar and seatpost. It's also extremely comfortable, power meter-ready and has clearance for tyres up to 28mm. But most of all, it's very, very fast.

Find your size!
Enter your height and inseam below and click on 'Calculate my frame size' to see which size you need. You measure your inseam as follows:
1. Stand barefoot with your heels against the wall. Place your feet about 6 inches apart.
2. Grab a book and place it between your legs, with the short side of the book against the wall. Press the book up against your crotch, mimicking the idea of ​​a bicycle saddle.
3. Measure the length from the top of the book to the floor, the distance you measure is your inseam.