Gravel racing has sped up to the point where drafting and aerodynamics decide results the same way they do on the road, and the Cervélo Áspero-5 was built for that reality. The all-new Áspero-5 was built for the front end of the race, and is the most aerodynamic gravel bike ever created, with the new bike a stunning 37 Watts faster than the outgoing model, and 34 Watts faster than its nearest competitor. This GRX RX825 Di2 1 build wraps that frame platform in Shimano's electronic gravel drivetrain and a factory-fitted power meter, offered in Five Black and Royal Mercury. It is a bike with a single, uncompromising purpose: carrying speed across mixed terrain when there's nobody left to hide behind.

The frame carries three decades of Cervélo aero research into gravel, with truncated airfoil tube sections and a curved seat tube that tucks close to the rear wheel. The aero handlebar and stem are responsible for nearly 6 Watts of that savings on their own, and the new Áspero-5 is 66 grams lighter than its predecessor, despite adding a significant amount of surface area to improve aerodynamic performance. Cervélo has carried over the T47 threaded BBright bottom bracket standard from the latest Áspero, and it all adds up to claimed weights of 1,023g for the frame and 393g for the fork.

This build runs a 1x drivetrain, and the gearing choice is worth understanding before you buy. The crankset is a Shimano GRX RX820 with a 4iiii Precision GEN3+ single-sided power meter, paired with a Wolf Tooth Aero 48T chainring and a Shimano XTR M9200 10-51T 12-speed cassette. That range handles both sustained power efforts and genuine technical climbing without compromise. Shifting runs through the Shimano GRX RX827 SGS rear derailleur and GRX RX825 Di2 levers , so if you want a wide-range, mullet-style setup with power data included out of the box rather than sourced as a separate upgrade, this is the configuration that delivers it.... Read More