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Bicycles > Gravel > Complete


The 2024 Aspero features improvements that include lowered seat stays for increased rear compliance and a slight reduction in front-end stiffness, easing the strain during the final hours of a long race. Additional clearance for mud was also incorporated, drawing on lessons from the R5-CX and the muddy conditions at Unbound 2023. These may seem like minor adjustments, but collectively, they significantly enhance the bike's performance. The outcome is a model that stays true to the original Áspero's essence but offers greater speed, comfort, and versatility.

The Shimano GRX RX820 component group is an advanced, integrated system specifically designed for gravel cycling, providing superior performance and reliability in off-road conditions. This series marks a significant enhancement in Shimano's gravel-specific lineup, combining robust durability with refined ergonomics and precision.

The GRX RX820 features a dual chainring setup, which is a critical component for riders requiring a broader gear range to tackle varied landscapes effectively. The front derailleur's design accommodates wider tires and greater frame variability, ensuring compatibility with the diverse designs found in modern gravel bikes. The rear derailleur incorporates Shimano's renowned Shadow RD+ technology, which stabilizes the chain across rough terrain, reducing chain slap and the risk of derailment.

Shimano has engineered the RX820 levers with an ergonomic design that prioritizes comfort and control. These levers are equipped with an anti-slip texture and a revised pivot location to enhance lever accessibility and braking precision, vital for maintaining control on slippery or uneven surfaces. Additionally, the system includes hydraulic disc brakes, which are essential for consistent, powerful braking performance in all weather conditions.

Furthermore, the RX820 groupset integrates seamlessly with Shimano's digital Di2 shifting system, offering crisp, fast, and reliable gear changes at the push of a button. This electronic shifting mechanism is particularly beneficial in the unpredictable environments of gravel riding, where quick and precise gear changes can significantly impact rider performance and comfort. Overall, the Shimano 2024 GRX RX820 provides a comprehensive solution for the demanding needs of gravel cyclists, emphasizing efficiency, stability, and ease of use.

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  • Designed specifically for gravel cycling, enhancing off-road performance and reliability.
  • Features a dual chainring setup for a broader gear range to tackle diverse terrains.
  • Front derailleur accommodates wider tires and diverse frame designs for optimal compatibility.
  • Rear derailleur includes Shadow RD+ technology to stabilize the chain on rough terrain.
  • Levers are ergonomically designed with an anti-slip texture for better control and comfort.
  • Revised lever pivot enhances accessibility and provides precise braking on uneven surfaces.
  • Equipped with hydraulic disc brakes for consistent and powerful stopping performance in all conditions.
  • Integrates with Shimano's Di2 system for fast, crisp, and reliable electronic gear changes.
  • Electronic shifting is ideal for gravel riding, allowing quick adjustments to changing terrain.
  • Emphasizes efficiency, stability, and ease of use to meet the demanding needs of gravel cyclists.

Bike Specifications

  • SIZES: 48, 51, 54, 56, 58, 61
  • FORK: Cervélo All-Carbon, Tapered Aspero Fork
  • HEADSET: FSA IS2 1-1/4 x 1-1/2
  • STEM: Cervélo ST36 Alloy, with Cable Management
  • HANDLEBAR: Cervélo AB09 Carbon, 31.8mm clamp, 16 degree flare
  • BRAKE ROTOR: Shimano CL800 Centerlock
  • SEATPOST: Cervélo SP19 Carbon 27.2
  • SHIFTERS: Shimano GRX, RX820, 12 speed
  • FRONT DERAILLEUR: Shimano GRX, RX820, 12 speed
  • REAR DERAILLEUR: Shimano GRX, RX820, 12 speed
  • CASSETTE: Shimano HG710, 11-36, 12 speed
  • CHAIN: Shimano M8100, 12 speed
  • CRANKSET: Shimano GRX 820, 48/31T, 12 Speed
  • BOTTOM BRACKET: FSA, T47 BBright, 24mm spindle
  • WHEELS: Fulcrum Rapid Red 300, 12x100(F)/142(R), 24H, 24mm IW, HG freehub, centerlock, tubeless compatible
  • THRU AXLES: Cervelo Aero Thru-Axles, 12x100/142
  • TIRES: WTB Vulpine TCS Light Fast Rolling Dual DNA 60tpi 700x40c
  • SADDLE: Prologo Dimension NDR T4.0
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Size 48 51 54 56 58 61
Wheel Size 700 700 700 700 700 700
Stack 505mm 530mm 555mm 580mm 605mm 630mm
Reach 370mm 379mm 388mm 397mm 406mm 415mm
Head Angle 71° 71.5° 72° 72° 72° 72°
Seat Angle 74.5° 74° 73.5° 73° 73° 73°
Top Tube Length 512mm 532mm 553mm 575mm 591mm 608mm
Head Tube Length 83mm 107mm 133mm 159mm 188mm 214mm
Standover 681mm 704mm 733mm 757mm 784mm 808mm
Fork Offset 52/57mm 49/54mm 46/51mm 46/51mm 46/51mm 46/51mm
Bottom Bracket Drop 78.5mm 78.5mm 76mm 76mm 73.5mm 73.5mm
Front Center 577/582mm 587/592mm 597/602mm 614/619mm 631/637mm 648/654mm
Wheelbase 990/995mm 999/1004mm 1010/1015mm 1028/1033mm 1046/1051mm 1063/1068mm
Chainstay Length 425mm 425mm 425mm 425mm 425mm 425mm
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