2025 Cervelo Aspero Gravel Bike - GRX RX610 1by

In 2019, the Áspero revolutionized the gravel biking scene, ushering in a "new era of speed" that blended exhilaration with efficiency. Staying true to its roots, the latest Áspero model enhances its design with key updates: a threaded bottom bracket shell for increased durability, cleaner cable routing for a sleeker look, and a Universal Derailleur Hanger (UDH) compatible with SRAM’s latest drivetrains. Additionally, the new Áspero boasts improved aerodynamics—not merely to cut through the wind faster, but to conserve energy more effectively. The minor aerodynamic gains could mean saving the energy equivalent of one less gel after a grueling day against the wind—certainly a worthwhile trade.

Further refinements include lowered seat stays for added compliance, slightly reduced front-end stiffness to ease fatigue in long races, and increased mud clearance inspired by insights from the R5-CX and the challenging conditions at Unbound 2023. These enhancements, though subtle, collectively elevate the Áspero. The result is a bike that remains faithful to the feel of the original yet offers faster, more comfortable, and more versatile performance.

 

 

 

 

 

 

 

 

 

Key Features of the Aspero

Threaded Bottom Bracket: The Aspero incorporates the innovative T47a threaded bottom bracket first introduced on the R5-CX. This asymmetrical design is not only simple and rider-serviceable but also combines the advantages of the BBRight system in a more user-friendly format.

Universal Derailleur Hanger: Embracing SRAM's Universal Derailleur Hanger (UDH), the new Aspero ensures future-proof compatibility with current and upcoming SRAM Transmission drivetrains. It's the perfect setup for those who like a bit of 'business in the front, party in the back' style.

Internal Cable Routing: Aspero benefits from the same bearing dimensions used in the R5, Soloist, R5-CX, and Caledonia models. This compatibility allows the use of various bearing caps and stems. For those seeking a sleek, race-ready appearance, the ST31 stem and HB13 handlebar from the R5 are ideal for achieving a fully internal look.

 

Specifications

 

Fork	Cervélo All-Carbon, Tapered Aspero Fork
Headset	FSA IS2 1-1/4 x 1-1/2
Seatpost	Cervélo Alloy 27.2 15mm Offset
Left Shifter/Brake	Shimano GRX, RX610
Right Shifter/Brake	Shimano GRX, RX610, 12 speed
Rear Derailleur	Shimano GRX, RX822, 12 speed
Brake Calipers	Shimano GRX RX610
Brake Rotors	Shimano RT66 6-Bolt
Thru Axles	Cervélo Aero Thru-Axles, 12x100/142
Crankset	Shimano GRX 610, 40T, 12 speed
Bottom Bracket	FSA, T47 BBright, 24mm spindle
Handlebar	Zipp Service Course 70 XPLR Alloy, 31.8mm clamp, 5 degree flare, 11 degree outsweep
Stem	Cervélo ST36 Alloy, w Cable Management
Saddle	Cervélo Saddle
Cassette	Shimano M7100, 10-45, 12 speed
Chain	Shimano M7100, 12 speed
Front Wheel	Alexrims Boondocks 7D, 12x100mm, 28H, 23mm IW, 6 bolt, tubeless compatible
Rear Wheel	Alexrims Boondocks 7D, 12x142mm, 28H, 23mm IW, MS freehub, 6 bolt, tubeless compatible
Tyre	WTB Vulpine TCS Light Fast Rolling Dual DNA 60tpi 700x40c
Accessories	Smartpak 400A Top Tube Storage Bag