Cervelo Aspero GRX825 Di2 1x

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.

Features

• 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.
• Universal Derailleur Hanger: 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.
• 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.

Specifications

Sizes Available

48cm, 51cm, 54cm, 56cm, 58cm, 61cm

Weight

8.78 kg

Frame

Cervélo Áspero Carbon Frame

Fork

Cervélo All-Carbon, Tapered Áspero Fork

Handlebar

Cervélo AB09 Carbon, 31.8mm clamp, 16° flare

Handlebar Widths

48: 36cm • 51: 38cm • 54: 40cm • 56: 40cm • 58: 42cm • 61: 42cm

Stem

Cervélo ST36 Alloy

Stem Lengths

48: 70mm • 51: 80mm • 54: 90mm • 56: 90mm • 58: 100mm • 61: 100mm

Seatpost

Cervélo SP19 Carbon 27.2

Seatpost Offset

48–58: 0mm • 61: 15mm

Saddle

Prologo Nago R4 PAS Steel

Bottom Bracket

FSA T47 BBright for 24mm spindle

Headset

FSA IS2 1-1/4", 45°×45° / 1-1/2", 36°×45°

Front Thru Axle

Cervélo Aero Thru Axle Front, M12×1.5mm, 127mm

Rear Thru Axle

Cervélo Aero Thru Axle Rear, M12×1.0mm, 169mm

Front Wheel

Reserve 40TA GR, DT Swiss 370 hub, 12×100mm, 24H, Centerlock, Tubeless Ready

Rear Wheel: Reserve 44TA GR, DT Swiss 370 hub, 12×142mm, MS freehub, 24H, Centerlock, Tubeless Ready

Tires

WTB Vulpine TCS Light Fast Rolling Dual DNA SG, 120tpi,…