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 HANGAR

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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Rival XPLR AXS 1

SIZES: 48, 51, 54, 56, 58, 61 

Please note: price and parts spec information is subject to change.

Open Build Specs

Sizes48, 51, 54, 56, 58, 61
ForkCervélo All-Carbon, Tapered Aspero Fork
HeadsetFSA IS2 1-1/4 x 1-1/2
StemCervélo ST36 Alloy, w Cable Management
HandlebarCervélo AB09 Carbon, 31.8mm clamp, 16 degree flare
SeatpostCervélo SP19 Carbon 27.2
SaddlePrologo Dimension STN
ShiftersSRAM Rival AXS, 12 speed
Brake CalipersSRAM Rival
Brake RotorSRAM Centerline Centerlock
Rear DerailleurSRAM Rival XPLR AXS, 12 speed
CassetteSRAM Rival XPLR, 10-44, 12 Speed
ChainSRAM Rival, 12 speed
CranksetSRAM Rival, 40T, DUB Wide
Bottom BracketSRAM DUB Wide, T47 BBright
WheelsFront: Reserve 40, 25.5mm IW, Zipp 76, 24H, centerlock, tubeless compatible Rear: Reserve 44, 25mm IW, Zipp 176,12x142mm, XDR freehub, 24H, centerlock, tubeless compatible
Thru AxlesCervelo Aero Thru-Axles, 12x100/142
TiresWTB Vulpine TCS Light Fast Rolling Dual DNA 60tpi 700x40c
AccessoriesSmartpak 400A Top Tube Storage Bag
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Woodsmoke
Sea Ice

Apex XPLR AXS 1

SIZES: 48, 51, 54, 56, 58, 61 

Please note: price and parts spec information is subject to change.

Open Build Specs

Sizes48, 51, 54, 56, 58, 61
ForkCervélo All-Carbon, Tapered Aspero Fork
HeadsetFSA IS2 1-1/4 x 1-1/2
StemCervélo ST36 Alloy, w Cable Management
HandlebarCervélo AB09 Carbon, 31.8mm clamp, 16 degree flare
SeatpostCervélo SP19 Carbon 27.2
SaddlePrologo Dimension STN
ShiftersSRAM Apex AXS, 12 speed
Brake CalipersSRAM Apex
Brake RotorSRAM Centerline Centerlock
Rear DerailleurSRAM Apex XPLR AXS, 12 speed
CassetteSRAM Apex XLPR, 11-44, 12 speed
ChainSRAM Apex, 12 speed
CranksetSRAM Apex 1, 40T, DUB Wide
Bottom BracketSRAM DUB Wide, T47 BBright
WheelsFulcrum Rapid Red 300, 12x100(F)/142(R), 24H, 24mm IW, HG freehub, centerlock, tubeless compatible
Thru AxlesCervelo Aero Thru-Axles, 12x100/142
TiresWTB Vulpine TCS Light Fast Rolling Dual DNA 60tpi 700x40c
AccessoriesSmartpak 400A Top Tube Storage Bag
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Sea Ice
Woodsmoke

GRX RX820

SIZES: 48, 51, 54, 56, 58, 61 

Please note: price and parts spec information is subject to change.

Open Build Specs

Sizes48, 51, 54, 56, 58, 61
ForkCervélo All-Carbon, Tapered Aspero Fork
HeadsetFSA IS2 1-1/4 x 1-1/2
StemCervélo ST36 Alloy, w Cable Management
HandlebarCervélo AB09 Carbon, 31.8mm clamp, 16 degree flare
SeatpostCervélo SP19 Carbon 27.2
SaddlePrologo Dimension NDR T4.0
ShiftersShimano GRX, RX820, 12 speed
Brake CalipersShimano GRX RX820
Brake RotorShimano CL800 Centerlock
Front DerailleurShimano GRX, RX820, 12 speed
Rear DerailleurShimano GRX, RX820, 12 speed
CassetteShimano HG710, 11-36, 12 speed
ChainShimano M8100, 12 speed
CranksetShimano GRX 820, 48/31T, 12 Speed
Bottom BracketFSA, T47 BBright, 24mm spindle
WheelsFulcrum Rapid Red 300, 12x100(F)/142(R), 24H, 24mm IW, HG freehub, centerlock, tubeless compatible
Thru AxlesCervelo Aero Thru-Axles, 12x100/142
TiresWTB Vulpine TCS Light Fast Rolling Dual DNA 60tpi 700x40c
AccessoriesSmartpak 400A Top Tube Storage Bag
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Peaches and Cream
Woodsmoke
Sea Ice

GRX RX610

SIZES: 48, 51, 54, 56, 58, 61 

Please note: price and parts spec information is subject to change.

Open Build Specs

Sizes48, 51, 54, 56, 58, 61
ForkCervélo All-Carbon, Tapered Aspero Fork
HeadsetFSA IS2 1-1/4 x 1-1/2
StemCervélo ST36 Alloy, w Cable Management
HandlebarZipp Service Course 70 XPLR Alloy, 31.8mm clamp, 5 degree flare, 11 degree outsweep
SeatpostCervélo Alloy 27.2 15mm Offset
SaddleCervélo Saddle
ShiftersShimano GRX, RX610, 12 speed
Brake CalipersShimano GRX RX610
Brake RotorShimano RT66 6-Bolt
Front DerailleurShimano GRX, RX820, 12 speed
Rear DerailleurShimano GRX, RX820, 12 speed
CassetteShimano HG710, 11-36, 12 speed
ChainShimano M7100, 12 speed
CranksetShimano GRX 610, 46/30T, 12 speed
Bottom BracketFSA, T47 BBright, 24mm spindle
WheelsFront: 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 AxlesCervelo Aero Thru-Axles, 12x100/142
TiresWTB Vulpine TCS Light Fast Rolling Dual DNA 60tpi 700x40c
AccessoriesSmartpak 400A Top Tube Storage Bag
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Woodsmoke
Sea Ice

Aspero Apex XPLR 1

SIZES: 48, 51, 54, 56, 58, 61 

Please note: price and parts spec information is subject to change.

Open Build Specs

Sizes48, 51, 54, 56, 58, 61
ForkCervélo All-Carbon, Tapered Aspero Fork
HeadsetFSA IS2 1-1/4 x 1-1/2
StemCervélo ST36 Alloy, w Cable Management
HandlebarZipp Service Course 70 XPLR Alloy, 31.8mm clamp, 5 degree flare, 11 degree outsweep
SeatpostCervélo Alloy 27.2 15mm Offset
SaddleCervélo Saddle
Brake CalipersSRAM Apex
Brake RotorSRAM Centerline 6-Bolt
Rear DerailleurSRAM Apex XPLR, 12 speed
CassetteSRAM Apex XLPR, 11-44, 12 speed
ChainSRAM Apex, 12 speed
CranksetSRAM Apex 1, 40T, DUB Wide
Bottom BracketSRAM DUB Wide, T47 BBright
WheelsFront: 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 AxlesCervelo Aero Thru-Axles, 12x100/142
TiresWTB Vulpine TCS Light Fast Rolling Dual DNA 60tpi 700x40c
AccessoriesSmartpak 400A Top Tube Storage Bag
Magnifying Glass Icon
Sea Ice
Woodsmoke

GRX RX610 1

SIZES: 48, 51, 54, 56, 58, 61 

Please note: price and parts spec information is subject to change.

Open Build Specs

Sizes48, 51, 54, 56, 58, 61
ForkCervélo All-Carbon, Tapered Aspero Fork
HeadsetFSA IS2 1-1/4 x 1-1/2
StemCervélo ST36 Alloy, w Cable Management
HandlebarZipp Service Course 70 XPLR Alloy, 31.8mm clamp, 5 degree flare, 11 degree outsweep
SeatpostCervélo Alloy 27.2 15mm Offset
SaddleCervélo Saddle
ShiftersShimano GRX, RX610
Brake CalipersShimano GRX RX610
Brake RotorShimano RT66 6-Bolt
Rear DerailleurShimano GRX, RX822, 12 speed
CassetteShimano M7100, 10-45, 12 speed
ChainShimano M7100, 12 speed
CranksetShimano GRX 610, 40T, 12 speed
Bottom BracketFSA, T47 BBright, 24mm spindle
WheelsFront: 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 AxlesCervelo Aero Thru-Axles, 12x100/142
TiresWTB Vulpine TCS Light Fast Rolling Dual DNA 60tpi 700x40c
AccessoriesSmartpak 400A Top Tube Storage Bag
Magnifying Glass Icon
Sea Ice
Peaches and Cream
Woodsmoke

Frameset

SIZES: 48, 51, 54, 56, 58, 61 

Please note: price and parts spec information is subject to change.

Open Build Specs

Sizes48, 51, 54, 56, 58, 61
ForkCervélo All-Carbon, Tapered Aspero Fork
HeadsetFSA IS2 1-1/4 x 1-1/2
SeatpostCervélo SP19 Carbon 27.2
Thru AxlesCervelo Aero Thru-Axles, 12x100/142

Rival XPLR AXS 1

Apex XPLR AXS 1

GRX RX820

GRX RX610

Aspero Apex XPLR 1

GRX RX610 1

Frameset

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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 | mm
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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