CERVELO C24 ASPERO GRX RX610

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.

THREADED BOTTOM BRACKET
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.

INTERNAL CABLE ROUTING
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
STEM
Cervélo ST36 Alloy, w Cable Management
HANDLEBAR
Zipp Service Course 70 XPLR Alloy, 31.8mm clamp, 5 degree flare, 11 degree outsweep
SEATPOST
Cervélo Alloy 27.2 15mm Offset
SADDLE
Cervélo Saddle
SHIFTERS
Shimano GRX, RX610, 12 speed
BRAKE CALIPERS
Shimano GRX RX610
BRAKE ROTOR
Shimano RT66 6-Bolt
FRONT DERAILLEUR
Shimano GRX, RX820, 12 speed
REAR DERAILLEUR
Shimano GRX, RX820, 12 speed
CASSETTE
Shimano HG710, 11-36, 12 speed
CHAIN
Shimano M7100, 12 speed
CRANKSET
Shimano GRX 610, 46/30T, 12 speed
BOTTOM BRACKET
FSA, T47 BBright, 24mm spindle
WHEELS
Front: Alexrims Boondocks 7D, 12x100mm, 28H, 23mm IW, 6 bolt, tubeless compatible Rear: Alexrims Boondocks 7D, 12x142mm, 28H, 23mm IW, HG freehub, 6 bolt, tubeless compatible
THRU AXLES
Cervelo Aero Thru-Axles, 12×100/142
TIRES
WTB Vulpine TCS Light Fast Rolling Dual DNA 60tpi 700x40c
ACCESSORIES
Smartpak 400A Top Tube Storage Bag