2026 Cervelo Aspero GRX RX820

Color: Marigold

Haul Ass, Not Cargo

In 2019, Áspero took the gravel world by storm, heralding a “new era of speed in gravel.” Fun, but flat out. The new Áspero remains true to its original brief, but with some improvements: a threaded BB shell, neater cable routing, and a UDH-compatible derailleur hanger for those who want to use SRAM’s Transmission drivetrains. And it’s more aero, of course. In the case of Áspero, aerodynamic performance is less about pure speed as a result of drag reduction, and more about conservation of energy. After a big day in a headwind, the three watts saved over the previous Aspero might add up to one less energy gel your stomach has to digest—WORTH IT.

In addition to the drag reduction, Cervelo also dropped the seat stays to give a bit more compliance out back, and reduced front-end stiffness slightly to make the last hours of a long race less painful. Between those dropped seat stays, they added in a bit more clearance for mud, too, taking what they learned from R5-CX (and the Unbound mudfest in 2023). It’s a lot of seemingly small improvements, but they add up to a lot. The result is a bike that feels a lot like the original Áspero, but is faster, more comfortable, and more versatile.

Specifications:

• Fork: Cervélo All-Carbon, Tapered Aspero Fork
• Headset: FSA IS2 1-1/4, 45° x 45° / 1-1/2, 36° x 45°
• Seatpost: Cervélo SP19 Carbon 27.2
• Left Shifter/Brake: Shimano GRX, RX820
• Right Shifter/Brake: Shimano GRX, RX820
• Front Derailleur: Shimano GRX, RX820
• Rear Derailleur: Shimano GRX, RX820
• Brake Rotors: Shimano CL800 Centerlock
• Front Thru Axles: Cervélo Aero Thru Axle Front, M12x1.5mm, 127mm length
• Rear Thru Axles: Cervélo Aero Thru Axle Rear, M12x1.0mm, 169mm length
• Bottom Bracket: FSA, T47 BBright for 24mm spindle
• Crankset: Shimano GRX, RX820, 48/31T
• Crank Sizing:
  • Size 48 - 170mm
  • Size 51 - 170mm
  • Size 54 - 170mm
  • Size 56 - 170mm
  • Size 58 - 172.5mm
  • Size 61 - 172.5
• Handlebar: Cervélo AB09 Carbon, 31.8mm clamp, 16 degree flare
• Stem: Cervélo ST36 Alloy
• Saddle: Prologo Nago R4 PAS Steel
• Cassette: Shimano HG710, 11-36T, 12-Speed
• Chain: Shimano M8100
• Front Wheel: Reserve 30 GR AL, Reserve 4LD, 12x100mm, 24H, centerlock, tubeless compatible
• Rear Wheel: Reserve 30 GR AL, Reserve 4LD, 12x142mm, XDR freehub, 24H, centerlock, tubeless compatible
• Tire: WTB Vulpine TCS Light Fast Rolling Dual DNA 60tpi 700x45c
• Max Tire Width: 700c - 45mm / 650c - 47mm
  
  Specifications subject to change