
Headset Bearing Cube 1-1/4" ACROS (19-00038) 34x46.8x7
Cube ACROS headset bearing 34x46.8x7 45/45° for Litening models. Ensures smooth steering and long-lasting performance.

A UCI-compliant aero race bike with a C:68X carbon frame, Dura-Ace Di2 2x12 drivetrain, Streem Vonoa wheels and 30% less drag. Extremely fast, precise and race ready.
Air-slicing speed, carbon frame tech and long-haul comfort for race-proven performance
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® AERO 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 and has clearance for tyres up to 28mm. But most important of all, it's very, very fast.
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 C:68X® carbon aero chassis with 30% drag reduction, it features Shimano's Dura-Ace 2x12 Di2 groupset – with built-in power meter – for precise gear changes and powerful braking literally at your fingertips. A Newmen Streem Aero/Sprint 60/66 Vonoa wheelset with a lower profile up front gives superb handling and incredible aero performance, even in windy conditions. Tubeless-ready 28mm Continental Grand Prix 5000 tyres combine rapid acceleration with the grip that you need. And the bike's low overall weight and day-long comfort help ensure you'll perform at your peak, hour after hour.
With our Advanced Twin Mold process we use two precisely manufactured forms for our C:62®, C:68® and C:68X® carbon frames. The first form is to ensure an accurate layup. The second, inner form keeps every individual fibre precisely where it needs to be while the frame cures. The result is a significantly lighter, stronger frame, with fibre density tailored to anticipated loadings at specific points.
Air sucks, and that's why Aero Optimized Geometry matters. Developed with a combination of wind tunnel testing, Computer Fluid Dynamics and feedback from athletes, it's our way of ensuring you can get the best possible performance out of you and your bike. Stable when you need it, agile when it counts and above all very, very fast.
We know that you want to keep track of your performance stats. It's important, which is why we designed a neat, unobtrusive mount for your bike computer. Now you can record and access data wherever you ride, safe in the knowledge that your device is securely mounted and out of harm's way.
Combining all our expertise from carbon frame building into the ultimate material, C:68X® carbon uses the optimum blend of fibre and nano particle-infused resin. Precision Advanced Twin Mold manufacturing means we can avoid bonded sleeves or inserts, too. It's the new benchmark for light, stiff and strong.
Full Internal Cable Routing takes the clutter of external cables and consigns it to the past. We started from scratch, designing frame and handlebars to accept gear and brake cables internally so that nothing interrupts the bike's clean lines. It's neater, it's more aero, it protects cables from damage and it reduces maintenance. All the wins.
Weight matters when you're chasing every fraction of a second. That's why our one-piece carbon cockpit has been carefully designed to mimic the range of riding positions available with a traditional stem and handlebar combo, but with a substantial weight saving. Light, strong and elegant, it's another way of making every watt count.
If you want to race, there are rules. We know that, which is why all our road race bikes that could be used for racing are fully compliant with UCI regulations on bicycle design and construction. We've created a full range of high performance machines that follow the rules, so you can just concentrate on your performance…