Cervélo Áspero-5 GRX RX825 Di2 1 digital moss 2027: the carbon gravel bike built for competition

An electronic carbon gravel bike designed for performance and efficiency

THE Cervélo Áspero-5 GRX RX825 Di2 1 digital moss 2027 is a carbon gravel bike designed for competition, conceived for cyclists seeking maximum speed, precision, and efficiency on the most demanding courses. A true embodiment of Cervélo's aerodynamic expertise, it incorporates the DNA of the new Áspero-5, touted as the most aerodynamic gravel bike ever created by the brand.

This new generation is touted as being 37 watts faster than the previous Áspero-5 and 34 watts faster than its closest competitor. 66 grams lighter than its predecessor despite even more advanced aerodynamic work, it combines pure speed, advanced integration, and terrain versatility thanks to clearance for tires up to 45 mm.

In this version, the Cervélo Áspero-5 receives a transmission Shimano GRX RX825 Di2 1x12 speed, a cassette Shimano XTR 10-51 tooth cassette, a Wolf Tooth Aero 48 tooth chainring, a 4iiii Precision GEN3+ power meter, and a Reserve carbon wheel setup weighing 48g/53g. A high-end package, designed for gravel racing, long fast distances, and courses both smooth and rough.

Frame

Cervélo Áspero-5 carbon frame geared towards Gravel Racing

The Cervélo Áspero-5 2027 was developed with one clear objective: to win gravel races. Its carbon frame benefits from over 30 years of Cervélo aerodynamic expertise and brings this mastery to the world of competitive gravel riding.

37 watts gained compared to the previous generation

The new Áspero-5 is advertised as being 37 watts faster than its predecessor and 34 watts faster than its closest competitor. The frame design, integration, and cockpit improvements optimize aerodynamics while maintaining excellent control on varied terrain.

A lighter and more efficient gravel bike

Despite an increased surface area to improve aerodynamic performance, this new generation is 66g lighter than its predecessor. The result is a lively, responsive bike that performs well both on accelerations and long, fast sections.

Integrated storage in the diagonal tube

The Áspero-5 incorporates a storage system in the downtube, directly inspired by the Cervélo P-Series. Lightweight, discreet and aerodynamic, it allows you to carry an inner tube, tools and a repair kit inside the frame, protected from the wind.

Fork and geometry

Cervélo All-Carbon Carbon Fork

The Cervélo All-Carbon Tapered Áspero Fork provides precision, front-end rigidity and stability, whether on rough roads, fast tracks or more technical trails.

Tire clearance up to 45 mm

The frame is designed to accept tires up to 45mm, in order to offer true versatility and adapt the bike to different terrain profiles, from fast gravel to more rugged terrain.

Optimized geometry for matching or contrasting tires

With tires of the same width, for example 42 mm front and rear, the handling remains stable, secure, and ready for challenging terrain. Cervélo has also optimized the geometry to work with a 4 mm difference between the front and rear tires, for example 40 mm / 44 mm, to further improve aerodynamics and maneuverability on less technical courses.

Cockpit

Cervélo HB16 carbon handlebar

The Cervélo HB16 Carbon handlebar with 31.8 mm clamping is designed to complement the bike's aerodynamics. It contributes to front-end stiffness, steering precision, and overall performance on long rides and in competition.

Cervelo ST31 carbon stem

The Cervélo ST31 Carbon stem completes the cockpit integration. The aerodynamic optimization of the handlebar/stem combination alone contributes to approximately 6 watts of power saving on the new Áspero-5.

Handlebar sizes according to frame

• Size 48: 36 cm
• Size 51: 38 cm
• Size 54: 40 cm
• Size 56: 40 cm
• Size 58: 42 cm
• Size 61: 42 cm

Stem lengths according to frame

• Size 48: 80 mm
• Size 51: 80 mm
• Size 54: 90 mm
• Size 56: 90 mm
• Size 58: 100 mm
• Size 61: 100 mm

Transmission

Transmission Shimano GRX RX825 Di2 1x12 speed

This version receives an electronic transmission Shimano The GRX RX825 Di2 is specifically designed for demanding gravel riding and competition. It ensures fast, precise, and reliable gear changes, even in challenging conditions.

Crankset Shimano GRX RX820 and Wolf Tooth Aero 48 tooth chainring

The crankset Shimano The GRX RX820 is paired with a Wolf Tooth Components Aero 48-tooth chainring for GRX. This single-chainring setup prioritizes simplicity, efficiency, and aerodynamics, while offering gearing suitable for fast gravel racing.

Precision GEN3+ 4iiii Power Sensor

The bike is equipped with a single-sided 4iiii Precision GEN3+ power meter, a valuable asset for structured training, performance monitoring and effort management in competition.

Rear derailleur Shimano GRX RX827 SGS

The rear derailleur Shimano The GRX RX827 SGS is designed to withstand the stresses of gravel riding and work with a wide range of gears, while maintaining excellent shifting precision.

Cassette Shimano XTR M9200 10-51 teeth

The cassette Shimano The XTR M9200 10-51 tooth 12-speed cassette offers a very wide gear range. It allows you to ride fast on rolling sections while maintaining gears suitable for steep gradients, long climbs, and rough terrain.

Chain Shimano M8100

The chain Shimano M8100 ensures excellent compatibility with the 12-speed transmission and contributes to the overall smoothness of the group.

Crank lengths according to frame

• Size 48: 170 mm Shimano
• Size 51: 170 mm Shimano
• Size 54: 170 mm
• Size 56: 170 mm
• Size 58: 172.5 mm
• Size 61: 172.5 mm

Brakes

Braking Shimano GRX Di2

The levers Shimano The GRX RX825 handles both electronic transmission and hydraulic braking. This setup offers excellent ergonomics, precise control, and braking power suitable for both fast descents and more technical terrain.

Records Shimano CL800 Center Lock

The discs Shimano CL800 Center Lock guarantees powerful, progressive and consistent braking, even during intensive use or in difficult conditions.

Wheels

Reserve 48 GR / 53 GR carbon wheels

The Cervélo Áspero-5 GRX RX825 Di2 1 is equipped with a Reserve 48 GR front wheel and a Reserve 53 GR rear wheel. This differentiated carbon build is designed to combine performance, aerodynamics, stability, and efficiency on fast gravel courses.

Hubs DT Swiss 350

The wheels rest on hubs DT Swiss 350, renowned for their reliability, smoothness and ease of maintenance. At the rear, the freehub body is MS standard.

Tubeless compatibility

The wheels are tubeless compatible, allowing for lower pressure riding, improved comfort, traction and puncture resistance.

Tires Vittoria Corsa Pro Control TLR G2.0 700x42c

The original equipment includes tires Vittoria Corsa Pro Control TLR G2.0 in 700x42c, offering an excellent compromise between performance, grip and control on degraded roads and fast tracks.

Components

Cervélo SP27 carbon seatpost

The Cervélo SP27 Carbon seatpost contributes to comfort and vibration damping, while maintaining an excellent level of rigidity and performance.

Saddle Fizik Vento Argo X3

The saddle Fizik Vento Argo X3 complements the sporty orientation of the bike with a seat adapted to long rides and a dynamic position.

CeramicSpeed SL T47 BBright bottom bracket

The CeramicSpeed SL T47 BBright bottom bracket for 24mm axle optimizes rotational smoothness, rigidity and transmission efficiency.

Accessories included

• Cervelo Rear Accessory Mount
• Cervélo In-Frame Storage Rolls - inner tube storage
• Cervélo In-Frame Storage Rolls - repair kit storage
• Cervélo Smartpak Top Tube Storage Bag 400A
• 2 bottle cages Arundel Mandible Matte UD Carbon Finish
• Cervélo Front Computer / Accessory Mount 266

Technical specifications

Frame and cockpit

• Frame: Cervélo Áspero-5 carbon
• Fork: Cervélo All-Carbon, Tapered Aspero Fork
• Handlebar: Cervélo HB16 Carbon, 31.8 mm clamp
• Stem: Cervélo ST31 Carbon
• Seatpost: Cervélo SP27 Carbon
• Saddle: Fizik Vento Argo X3
• Steering system: FSA IS2 1-1/4, 45° x 45° / 1-1/2, 36° x 45°

Transmission and braking

• Gear levers / brakes: Shimano GRX RX825
• Crankset: Shimano GRX RX820
• Chainring: Wolf Tooth Components Aero 48T for GRX
• Power sensor: 4iiii Precision GEN3+ single-sided
• Bottom bracket: CeramicSpeed SL, T47 BBright for 24mm axle
• Rear derailleur: Shimano GRX RX827 SGS
• Cassette: Shimano XTR M9200, 10-51 teeth, 12 speeds
• Chain : Shimano M8100
• Discs: Shimano CL800 Center Lock

Wheels and tires

• Front wheel: Reserve 48 GR, DT Swiss 350, 12x100 mm, 24H, Center Lock, tubeless compatible
• Rear wheel: Reserve 53 GR, DT Swiss 350, 12x142 mm, MS body, 24H, Center Lock, tubeless compatible
• Tires: Vittoria Corsa Pro Control TLR G2.0, 700x42c

Axes and standards

• Front thru axle: Cervélo Aero Thru Axle Front, M12x1.5 mm, length 122 mm
• Rear thru axle: Cervélo Aero Thru Axle Rear, M12x1.0 mm, length 169 mm
• Standard housing: T47 BBright
• Freewheel body: MS

Weights and sizes

• Advertised weight: 8.3 kg
• Available sizes: 48, 51, 54, 56, 58, 61 cm

Recommended use

• Gravel race
• Gravel competition
• Long distances, fast
• Mixed terrain, both fast and challenging
• Cyclists looking for a high-end, aerodynamic, and electronic carbon gravel bike

Why choose the Cervélo Áspero-5 GRX RX825 Di2 1 2027 ?

• Competition carbon gravel frame developed for speed
• 37 watts of gain claimed compared to the previous generation
• Tire clearance up to 45 mm
• Integrated storage in the diagonal tube
• Electronic transmission Shimano GRX RX825 Di2 1x12 speed
• Wolf Tooth Aero 48 tooth chainring
• 4iiii Precision GEN3+ power meter included
• Cassette Shimano XTR 10-51 teeth
• Reserve carbon wheels 48 GR / 53 GR with hubs DT Swiss 350
• CeramicSpeed SL T47 BBright Case
• Tires Vittoria Corsa Pro Control TLR 700x42c
• Cervélo HB16 / ST31 carbon cockpit
• High-end build designed for gravel racing and long-distance performance

Please note that the specifications may be changed without prior notice by the manufacturer, based on the availability of components and other factors.