Cervélo Aspero-5 GRX RX825 Di2 1 (colour Royal Mercury / grey) Gravel Bike - complete bike

The Cervélo Áspero‑5 is built to lead the pack. As the most aerodynamic gravel bike ever, it combines 30 years of Cervélo's expertise in aerodynamics with the raw reality of gravel racing. The result? 37 watts faster than the previous model and 34 watts faster than its closest competitor. A significant portion of this gain comes from the integrated aero handlebar and stem, accounting for nearly 6 watts on its own.

Lightweight and Efficient

Despite a larger surface area for better aerodynamics, the new Áspero‑5 is 66 grams lighter than its predecessor. This not only makes it faster but also more agile and responsive on technical trails.

Optimized Geometry for Every Terrain

Whether you ride with the same tire size (e.g., 42 mm front and rear) for stability on rough terrain, or a 4 mm difference between front and rear tires (e.g., 40 mm front, 44 mm rear) for maximum aerodynamics and sharper handling on less technical routes, the Áspero‑5 adapts perfectly.

Smart Storage, Aerodynamically Integrated

The Áspero‑5 introduces downtube storage, first implemented on the P-Series triathlon bikes. This clever solution allows you to store an inner tube, tools, and a flat kit inside the frame—completely out of the wind and lightweight, so you don't lose speed.

Race-Ready from the First Meter

With tire clearance up to 45 mm and a threaded bottom bracket, the Áspero‑5 is race-ready right out of the box. Its world debut was truly legendary: UCI Gravel World Champion Marianne Vos won in a rainbow jersey with this bike, and today it is used by some of the most elite riders in the world.

Maximum Gravel Performance

The Áspero‑5 is the ultimate choice for those seeking uncompromising speed, aerodynamics, and gravel performance.

Specifications
Sizes: 48 cm, 51 cm, 54 cm, 56 cm, 58 cm, 61 cm
Fork: Cervélo All-Carbon, Tapered Aspero-5 Fork
Handlebar: Cervélo HB16 Carbon, 31.8 mm Clamp

Handlebar Width per Size48 cm – 38 cm, 51 cm – 38 cm, 54 cm – 40 cm, 56 cm – 40 cm, 58 cm – 42 cm, 61 cm – 42 cm

Stem: Cervélo ST31 Carbon

Stem Length per Size48 cm – 70 mm, 51 cm – 80 mm, 54 cm – 90 mm, 56 cm – 90 mm, 58 cm – 100 mm, 61 cm – 100 mm

Seatpost: Cervélo SP27 Carbon

Seatpost Offset per Size48 cm – 0 mm, 51 cm – 0 mm, 54 cm – 0 mm, 56 cm – 0 mm, 58 cm – 0 mm, 61 cm – 15 mm

Saddle: Prologo Nago R4 PAS Tirox
Bottom Bracket: Ceramic Speed SL, T47 BBright for 24 mm Spindle
Headset: FSA IS2 1-1/4, 45° x 45° / 1-1/2, 36° x 45°Front Thru Axle: Cervélo Aero Thru Axle Front, M12x1.5 mm, 122 mm Length
Rear Thru Axle: Cervélo Aero Thru Axle Rear, M12x1.0 mm, 169 mm Length

Front Wheel: Reserve 40TA GR, DT Swiss 350, 12x100 mm, 24H, Centerlock, Tubeless Compatible
Rear Wheel: Reserve 44TA GR, DT Swiss 350, 12x142 mm, MS Freehub, 24H, Centerlock, Tubeless Compatible
Tires: Vittoria Corsa Pro Control TLR G2.0 700x42c

Shifters / Brake Levers: Shimano GRX, RX825
Crankset: Shimano GRX, RX820
Chainring: Wolf Tooth Components Aero 48T for GRXPower Meter: 4iiii Precision, GEN3+ Single Sided

Crank Length per Size48 cm – 165 mm SRAM, 170 mm Shimano51 cm – 165 mm SRAM, 170 mm Shimano54 cm – 170 mm, 56 cm – 170 mm, 58 cm – 172.5 mm, 61 cm – 172.5 mm

Chain: Shimano M8100
Cassette: Shimano XTR, M9200, 10-51T, 12-Speed
Rear Derailleur: Shimano GRX, RX827 SGSBrake Rotors: Shimano CL800 Centerlock

Accessories
Cervélo Front Computer / Accessory Mount 887Cervélo Rear Accessory MountCervélo In-Frame Storage Rolls – Inner Tube StorageCervélo In-Frame Storage Rolls – Flat Kit StorageCervélo Smartpak Top Tube Storage Bag 400AArundel Mandible Water Bottle Cage, Matte UD Carbon Finish (2 pieces)

Maximum Tire Width: 45 mm

Geometry
The Áspero-5 is a gravel racer with powerful and comfortable characteristics thanks to its adapted geometry. Below are the main specifications: