When we set out to develop a new ultralight race bike, the Litening AIR C:68X SLX was what we had in mind. Slippery through the air, comfortable enough to race all day and weighing in at around 799g for a mid-sized frame, it's the UCI-compliant speed machine you've been looking for. Sram's Red AXS with built-in power meter handles stop and go duties, while Newmen Streem Climbing 35/38 Vonoa carbon wheels – shod with Continental tyres – help keep you in full control even as the speed increases. The ultimate race machine? That's up to you.