ÁSPERO

HAUL ASS, NOT CARGO

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.

HAUL ASS, NOT CARGO

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. 

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.

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Marigold

GRX RX825 Di2

$6,900
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  • Carbon handlebar | carbon seatpost
  • 44T | 10-51T | 12-speed | power meter
  • Reserve 40|44TA GR carbon wheelset | DT Swiss 370 hubs
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Marigold

Apex XPLR AXS 1

$4,400
Black/Charcoal
  • Carbon handlebar | carbon seatpost
  • 40T | 11-44T | 12-speed
  • Reserve 30 GR AL wheelset
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Black/Charcoal

GRX RX820

$4,100
Marigold
  • Carbon handlebar | carbon seatpost
  • 48/31T | 11-36T | 12-speed
  • Reserve 30 GR AL wheelset
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Apex XPLR 1

$3,600
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  • Alloy handlebar | alloy seatpost
  • 40T | 11-44T | 12-speed
  • Alexrims GX7 alloy wheelset
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GRX RX610

$3,400
Black/Charcoal
  • Alloy handlebar | alloy seatpost
  • 46/30T | 11-36T | 12-speed
  • Alexrims GX7 alloy wheelset

GRX RX825 Di2

Apex XPLR AXS 1

GRX RX820

Apex XPLR 1

GRX RX610

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Geometry

485154565861
Reach | mm370379388397406415
Stack | mm505530555580605630
Head Tube Angle 71°71.5°72°72°72°72°
Front Center | mm577/582587/592597/602614/619631/637648/654
Bottom Bracket Drop | mm78.578.5767673.573.5
Head Tube Length | mm83107133159188214
Top Tube Length | mm512532553575591608
Seat Tube Angle 74.5°74°73.5°73°73°73°
Standover Height | mm681704733757784808
Trail | mm626262626262
Wheel Size 700C700C700C700C700C700C
Fork Offset | mm52/5749/5446/5146/5146/5146/51
Wheelbase | mm990/995999/10041010/10151028/10331046/10511063/1068
Chainstay Length | mm425425425425425425

Frame Sizing

How do I determine what bike size I need?

The age-old question, isn’t it? There are many factors that go into bicycle sizing and fit, particularly for high-performance bikes. Without being able to measure you and see you on a bike, precise fit information is difficult to supply. It’s also not unusual for someone to be able to ride two different sizes depending on their goals, flexibility, and fit tolerance. That said, we have some fantastic retailers, and we’d encourage you to go start a conversation with them about what you want from your new bike. You can find the retailer closest to you on our Dealer Locator.

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