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Note: The image depicts only the color of the bicycle. Component specifications may vary from those listed in the description.

A MATTER OF WATTS

Back in 2019, Áspero shook up the cycling world by ushering in a “new era of speed in gravel.” The new Áspero stays true to those early, simpler days of pure gravel racing, but now comes with a series of refinements: a threaded bottom bracket, tidier cable routing, and a UDH-compatible derailleur hanger for riders running SRAM drivetrains. And of course, it’s more aerodynamic.

With Áspero, however, aerodynamic performance isn’t just about outright speed—it’s about saving energy through reduced drag. After a long day of headwinds, the three watts saved compared to the previous Áspero might be the equivalent of one less energy gel your stomach has to digest. Try it, and you’ll feel the difference.

Beyond the aero gains, we’ve also dropped the seat stays to improve rear-end compliance and slightly reduced front-end stiffness to take the sting out of those final hours of truly long races. Between the lowered stays we carved out more mud clearance, drawing from what we learned on the R5-CX (and at the mud-soaked 2023 Unbound).

Each of these updates might seem small on its own, but together they add up to a lot. The result is a bike that looks very much like the original Áspero, but in practice is faster, more comfortable, and more versatile.

GRX RX820
€4,399

Sizes: 48cm, 51cm, 54cm, 56cm, 58cm, 61cm
Fork: Cervélo All-Carbon, Tapered Áspero Fork
Handlebar: Cervélo AB09 Carbon, 31.8mm clamp, 16° flare
Handlebar Width:

Size 48 – 36cm

Size 51 – 38cm

Size 54 – 40cm

Size 56 – 40cm

Size 58 – 42cm

Size 61 – 42cm

Stem: Cervélo ST36 Alloy
Stem Length:

Size 48 – 80mm

Size 51 – 80mm

Size 54 – 90mm

Size 56 – 90mm

Size 58 – 100mm

Size 61 – 100mm

Seatpost: Cervélo SP19 Carbon 27.2
Seatpost Offset:

Size 48 – 0mm

Size 51 – 0mm

Size 54 – 0mm

Size 56 – 0mm

Size 58 – 0mm

Size 61 – 15mm

Saddle: Prologo Nago R4 PAS Steel
Bottom Bracket: FSA, T47 BBright for 24mm spindle
Headset: FSA IS2 1-1/4, 45° x 45° / 1-1/2, 36° x 45°

Front Thru-Axle: Cervélo Aero Thru Axle Front, M12x1.5mm, 127mm length
Rear Thru-Axle: Cervélo Aero Thru Axle Rear, M12x1.0mm, 169mm length

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
Tires: WTB Vulpine TCS Light Fast Rolling Dual DNA 60tpi 700x45c

Brake Levers: Shimano GRX, RX820
Crankset: Shimano GRX, RX820, 48/31T
Chainring: –
Power Meter: –
Crank Lengths:

Size 48 – 165mm SRAM, 170mm Shimano

Size 51 – 165mm SRAM, 170mm Shimano

Size 54 – 170mm

Size 56 – 170mm

Size 58 – 172.5mm

Size 61 – 172.5mm

Chain: Shimano M8100
Cassette: Shimano HG710, 11-36T, 12-Speed
Front Derailleur: Shimano GRX, RX820
Rear Derailleur: Shimano GRX, RX820
Brake Rotors: Shimano CL800 Centerlock

Accessories:

Cervélo Front Computer/Accessory Mount 810

Cervélo Rear Accessory Mount

Cervélo Smartpak Top Tube Storage Bag 400A

Max Tire Width (actual):

700c – 45mm

650c – 47mm

Available technical data: