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Cervelo Aspero GRX 820

Cervelo Aspero GRX 820
  • Color: Sea Ice
  • Color: Woodsmoke
Color: Sea Ice
Size: Select size
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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, we 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, we added in a bit more clearance for mud, too, taking what we 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.

Aspero uses the asymmetrical T47a threaded bottom bracket we pioneered on R5-CX. It’s a simple, rider-serviceable interface that allows us to deliver the benefits of BBRight in a more user-friendly form.

We used SRAM’s Universal Derailleur Hanger (UDH) standard on the new Aspero. It’s ideal if you want to live your best ‘business in the front, party in the back’ life with one of SRAM’s Transmission drivetrains today, and ensures compatibility for future drivetrain developments.

Aspero shares the same bearing dimensions as R5, Soloist, R5-CX, and Caledonia, which means you can use any combination of bearing caps and stems. Want a super-racy, fully-internal look? Grab the ST31 and HB13 from R5.


Fork Cervélo All-Carbon, Tapered Aspero Fork
Headset FSA IS2 1-1/4 x 1-1/2
Rims/Wheels Fulcrum Rapid Red 300, 12x100(F)/142(R), 24H, 24mm IW, HG freehub, centerlock, tubeless compatible
Tires WTB Vulpine TCS Light Fast Rolling Dual DNA 60tpi 700x40c
Crankset Shimano GRX 820, 48/31T, 12 Speed
Bottom Bracket FSA, T47 BBright, 24mm spindle
Chain Shimano M8100, 12 speed
Front Derailleur Shimano GRX, RX820, 12 speed
Rear Derailleur Shimano GRX, RX820, 12 speed
Cassette/Rear Cogs Shimano HG710, 11-36, 12 speed
Shifters Shimano GRX, RX820, 12 speed
Brakes Shimano CL800 Centerlock
Handlebars Cervélo AB09 Carbon, 31.8mm clamp, 16 degree flare
Stem Cervélo ST36 Alloy, w Cable Management
Saddle Prologo Dimension NDR T4.0
Seat Post Cervélo SP19 Carbon 27.2
Accessories & Extras Smartpak 400A Top Tube Storage Bag

* Subject to change without notice.

Part Numbers

Option UPC MPN Store SKU
Sea Ice / 48 0042677658573 0J0ASBG82A48 CER295638238
Sea Ice / 51 0042677658580 0J0ASBG82A51 CER296314281
Sea Ice / 54 0042677658597 0J0ASBG82A54 CER296794164
Sea Ice / 56 0042677658603 0J0ASBG82A56 CER296412976
Sea Ice / 58 0042677658610 0J0ASBG82A58 CER292630718
Sea Ice / 61 0042677658627 0J0ASBG82A61 CER291355921
Woodsmoke / 48 0042677658511 0J0ASBG81A48 CER32804568
Woodsmoke / 51 0042677658528 0J0ASBG81A51 CER32718021
Woodsmoke / 54 0042677658535 0J0ASBG81A54 CER321315834
Woodsmoke / 56 0042677658542 0J0ASBG81A56 CER329357726
Woodsmoke / 58 0042677658559 0J0ASBG81A58 CER322879578
Woodsmoke / 61 0042677658566 0J0ASBG81A61 CER321419631