ÁSPERO
HAUL ASS, NOT CARGO
We engineered Áspero for pure, unapologetic speed, ready to take down finish lines, KOMs, PRs, and FKTs. A bike built without limits, for the riders looking to test them. It’s stiff—Classics-racing stiff—and performs like you’d want a road bike to perform off-road. We think that makes sense, and it’s what we were trying to do when we were stuffing bigger tires into our existing frames and swapping in aftermarket forks to get a 40mm tire up front.
HAUL ASS, NOT CARGO
We engineered Áspero for pure, unapologetic speed, ready to take down finish lines, KOMs, PRs, and FKTs. A bike built without limits, for the riders looking to test them. It’s stiff—Classics-racing stiff—and performs like you’d want a road bike to perform off-road. We think that makes sense, and it’s what we were trying to do when we were stuffing bigger tires into our existing frames and swapping in aftermarket forks to get a 40mm tire up front.
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MULTIPLE CONFIGURATIONS
We designed Aspero with clearance for up to 700c x 40mm tires or 650b x 49mm tires. Of course, there are variables—rim width, tire casing, and tread depth—which will affect final clearance. We always recommend 4mm of clearance between the tire and frame.
**New Shimano road (not gravel) 12 speed front derailleurs reduce tire clearance in the rear of the frame to 700 x 38c or 650b x 45c.
TWO-POSITION ADJUSTMENT
Trail—front-wheel response to rider input—is the most critical factor in high-velocity handling. Flipping the two-position "Trail Mixer" to compensate for the difference in circumference between a 650b and 700c tire maintains consistent handling by maintaining consistent trail figures.
BALANCED HANDLING
Stiffness and handling work together to ensure the bike tracks predictably and responds immediately to critical pedal and bracing inputs.
GRX RX815 Di2
$6,500SIZES: 48, 51, 54, 56, 58, 61Please note: price and parts spec information is subject to change.
Open Build Specs
| Sizes | 48, 51, 54, 56, 58, 61 |
| Fork | Cervélo All-Carbon, Tapered Aspero Fork |
| Headset | FSA IS2 1-1/8 x 1-1/2 |
| Stem | Cervélo ST27 Alloy |
| Handlebar | Cervélo AB09 Carbon, 31.8mm clamp, 16 degree flare |
| Seatpost | Cervélo SP19 Carbon 27.2 |
| Saddle | Prologo Dimension NDR T4.0 |
| Shifters | Shimano GRX, RX815, 11 speed |
| Brake Calipers | Shimano GRX RX810 |
| Brake Rotor | Shimano MT800 Centerlock |
| Front Derailleur | Shimano GRX, RX815, 11 speed |
| Rear Derailleur | Shimano GRX, RX815, 11 speed |
| Cassette | Shimano HG800, 11-34, 11 Speed |
| Chain | Shimano HG701, 11 speed |
| Crankset | Shimano GRX 810, 48/31T, 11 Speed |
| Bottom Bracket | FSA, BBright thread together, 24mm spindle |
| Wheels | Reserve 40/44 |
| Thru Axles | Cervelo Aero Thru-Axles, 12x100/142 |
| Tires | Panaracer Gravel King SK 700x38c |
| Accessories | Smartpak 400A Top Tube Storage Bag |
GRX RX815 Di2
$6,500SIZES: 48, 51, 54, 56, 58, 61Please note: price and parts spec information is subject to change.
Open Build Specs
| Sizes | 48, 51, 54, 56, 58, 61 |
| Fork | Cervélo All-Carbon, Tapered Áspero Fork |
| Headset | FSA IS2 1-1/8 x 1-1/2 |
| Stem | Easton EA90 Alloy OR Cervélo Alloy |
| Handlebar | Easton EC70AX Carbon |
| Seatpost | Easton EC70 Carbon |
| Saddle | Prologo Dimension NDR T4.0 OR Selle Italia NOVUS BOOST EVO Superflow Manganese |
| Shifters | Shimano GRX RX815 Di2, 11 spd |
| Brake Calipers | Shimano GRX RX815 Hydraulic Disc |
| Brake Rotor | Shimano SM-RT800, 160mm |
| Front Derailleur | Shimano GRX 815 Di2, 11 spd |
| Rear Derailleur | Shimano GRX 815 Di2, 11 spd |
| Cassette | Shimano HG800, 11 spd, 11-34 |
| Chain | Shimano CN-HG701, 11 spd |
| Crankset | Shimano GRX 810 48/31 |
| Bottom Bracket | JY-BB 24 |
| Wheels | Reserve 32 |
| Thru Axles | Cervelo Indexed Thru-Axles w/ Lever, 12x100/142 |
| Tires | Panaracer Gravel King SK Folding 700x38 |
| Accessories | Smartpak 400A Top Tube Storage Bag |
Rival XPLR eTap AXS 1
$5,500SIZES: 48, 51, 54, 56, 58, 61Please note: price and parts spec information is subject to change.
Open Build Specs
| Sizes | 48, 51, 54, 56, 58, 61 |
| Fork | Cervélo All-Carbon, Tapered Aspero Fork |
| Headset | FSA IS2 1-1/8 x 1-1/2 |
| Stem | Cervélo ST27 Alloy |
| Handlebar | Cervélo AB09 Carbon, 31.8mm clamp, 16 degree flare |
| Seatpost | Cervélo SP19 Carbon 27.2 |
| Saddle | Prologo Dimension STN |
| Shifters | SRAM Rival AXS, 12 speed |
| Brake Calipers | SRAM Rival |
| Brake Rotor | SRAM Centerline Centerlock |
| Front Derailleur | - |
| Rear Derailleur | SRAM Rival XPLR AXS, 12 speed |
| Cassette | SRAM Rival XPLR, 10-44, 12 Speed |
| Chain | SRAM Rival, 12 speed |
| Crankset | SRAM Rival, 40T, DUB Wide |
| Bottom Bracket | SRAM DUB, BBright |
| Wheels | Reserve 40/44 |
| Thru Axles | Cervelo Aero Thru-Axles, 12x100/142 |
| Tires | Panaracer Gravel King SK 700x38c |
| Accessories | Smartpak 400A Top Tube Storage Bag |
Rival XPLR eTap AXS 1
$5,500SIZES: 48, 51, 54, 56, 58, 61Please note: price and parts spec information is subject to change.
Open Build Specs
| Sizes | 48, 51, 54, 56, 58, 61 |
| Fork | Cervélo All-Carbon, Tapered Áspero Fork |
| Headset | FSA IS2 1-1/8 x 1-1/2 |
| Stem | Easton EA70 Alloy OR Cervélo Alloy |
| Handlebar | Easton EC70AX Carbon |
| Seatpost | Easton EC70 Carbon |
| Saddle | Prologo Dimension STN OR Selle Italia NOVUS BOOST EVO Superflow Manganese |
| Shifters | SRAM Rival eTap AXS HRD 12 spd |
| Brake Calipers | SRAM Rival HRD |
| Brake Rotor | SRAM CenterLine 160mm |
| Front Derailleur | N/A |
| Rear Derailleur | SRAM Rival XPLR eTap AXS 12 spd |
| Cassette | SRAM Rival XPLR 12s XG1251, 10-44 |
| Chain | SRAM Rival, 12 spd |
| Crankset | SRAM Rival AXS 1 40T |
| Bottom Bracket | SRAM Dub |
| Wheels | Reserve 32 |
| Thru Axles | Cervelo Indexed Thru-Axles w/ Lever, 12x100/142 |
| Tires | Panaracer Gravel King SK Folding 700x38 |
| Accessories | Smartpak 400A Top Tube Storage Bag |
GRX RX810
$4,300SIZES: 48, 51, 54, 56, 58, 61Please note: price and parts spec information is subject to change.
Open Build Specs
| Sizes | 48, 51, 54, 56, 58, 61 |
| Fork | Cervélo All-Carbon, Tapered Aspero Fork |
| Headset | FSA IS2 1-1/8 x 1-1/2 |
| Stem | Cervélo ST27 Alloy |
| Handlebar | Cervélo AB09 Carbon, 31.8mm clamp, 16 degree flare |
| Seatpost | Cervélo SP19 Carbon 27.2 |
| Saddle | Prologo Dimension NDR T4.0 |
| Shifters | Shimano GRX, RX810, 11 speed |
| Brake Calipers | Shimano GRX RX810 |
| Brake Rotor | Shimano MT800 Centerlock |
| Front Derailleur | Shimano GRX, RX810, 11 speed |
| Rear Derailleur | Shimano GRX, RX810, 11 speed |
| Cassette | Shimano HG800, 11-34, 11 Speed |
| Chain | Shimano HG701, 11 speed |
| Crankset | Shimano GRX 810, 48/31T, 11 Speed |
| Bottom Bracket | FSA, BBright thread together, 24mm spindle |
| Wheels | Fulcrum Rapid Red 300 |
| Thru Axles | Cervelo Aero Thru-Axles, 12x100/142 |
| Tires | Panaracer Gravel King SK 700x38c |
| Accessories | Smartpak 400A Top Tube Storage Bag |
GRX RX810
$4,300SIZES: 48, 51, 54, 56, 58, 61Please note: price and parts spec information is subject to change.
Open Build Specs
| Sizes | 48, 51, 54, 56, 58, 61 |
| Fork | Cervélo All-Carbon, Tapered Áspero Fork |
| Headset | FSA IS2 1-1/8 x 1-1/2 |
| Stem | Easton EA70 Alloy OR Cervélo Alloy |
| Handlebar | Easton EC70AX Carbon |
| Seatpost | Easton EC70 Carbon |
| Saddle | Prologo Dimension NDR T4.0 OR Selle Italia NOVUS BOOST EVO Superflow Manganese |
| Shifters | Shimano GRX RX810, 11 spd |
| Brake Calipers | Shimano GRX RX810 Hydraulic Disc |
| Brake Rotor | Shimano SM-RT800, 160mm |
| Front Derailleur | Shimano GRX 810, 11 spd |
| Rear Derailleur | Shimano GRX 810, 11 spd |
| Cassette | Shimano HG800, 11 spd, 11-34 |
| Chain | Shimano CN-HG701, 11 spd |
| Crankset | Shimano GRX 810 48/31 |
| Bottom Bracket | JY-BB 24 |
| Wheels | Easton EA70AX |
| Thru Axles | Cervelo Indexed Thru-Axles w/ Lever, 12x100/142 |
| Tires | Panaracer Gravel King SK Folding 700x38 |
| Accessories | Smartpak 400A Top Tube Storage Bag |
GRX RX600
$3,300SIZES: 48, 51, 54, 56, 58, 61Please note: price and parts spec information is subject to change.
Open Build Specs
| Sizes | 48, 51, 54, 56, 58, 61 |
| Fork | Cervélo All-Carbon, Tapered Aspero Fork |
| Headset | FSA IS2 1-1/8 x 1-1/2 |
| Stem | Cervélo Alloy |
| Handlebar | Zipp Service Course 70 XPLR Alloy, 31.8mm clamp, 5 degree flare, 11 degree outsweep |
| Seatpost | Cervélo Alloy 27.2 |
| Saddle | Cervélo Road Saddle |
| Shifters | Shimano GRX, RX600, 11 speed |
| Brake Calipers | Shimano GRX RX400 |
| Brake Rotor | Shimano RT66 6-Bolt |
| Front Derailleur | Shimano GRX, RX810, 11 speed |
| Rear Derailleur | Shimano GRX, RX810, 11 speed |
| Cassette | Shimano HG700, 11-34, 11 Speed |
| Chain | Shimano HG601, 11 speed |
| Crankset | Shimano GRX 600, 46/30T, 11 Speed |
| Bottom Bracket | FSA, BBright thread together, 24mm spindle |
| Wheels | Alexrims Boondocks |
| Thru Axles | Cervelo Aero Thru-Axles, 12x100/142 |
| Tires | Panaracer Gravel King SK Sport 60tpi 700x38c |
| Accessories | Smartpak 400A Top Tube Storage Bag |
GRX RX600
$3,300SIZES: 48, 51, 54, 56, 58, 61Please note: price and parts spec information is subject to change.
Open Build Specs
| Sizes | 48, 51, 54, 56, 58, 61 |
| Fork | Cervélo All-Carbon, Tapered Áspero Fork |
| Headset | FSA IS2 1-1/8 x 1-1/2 |
| Stem | Easton EA50 Alloy OR Cervélo Alloy |
| Handlebar | Easton EA50 AX Alloy |
| Seatpost | Easton EA50 Alloy |
| Saddle | Cervelo Road Saddle OR Selle Italia MODEL X Superflow FeC Alloy |
| Shifters | Shimano GRX RX600, 11 spd |
| Brake Calipers | Shimano GRX RX600 Hydraulic Disc |
| Brake Rotor | Shimano SM-RT66, 160mm |
| Front Derailleur | Shimano GRX 600, 11 spd |
| Rear Derailleur | Shimano GRX 600, 11 spd |
| Cassette | Shimano 105 R7000, 11 spd, 11-34 |
| Chain | Shimano CN-HG601, 11 spd |
| Crankset | Shimano GRX 600 46/30 |
| Bottom Bracket | JY-BB 24 |
| Wheels | Alexrims Boondocks-7D |
| Thru Axles | Cervelo Indexed Thru-Axles w/ Lever, 12x100/142 |
| Tires | Panaracer Gravel King SK Sport Folding 700x38 60tpi |
| Accessories | Smartpak 400A Top Tube Storage Bag |
Apex 1
$3,100SIZES: 48, 51, 54, 56, 58, 61Please note: price and parts spec information is subject to change.
Open Build Specs
| Sizes | 48, 51, 54, 56, 58, 61 |
| Fork | Cervélo All-Carbon, Tapered Aspero Fork |
| Headset | FSA IS2 1-1/8 x 1-1/2 |
| Stem | Cervélo Alloy |
| Handlebar | Zipp Service Course 70 XPLR Alloy, 31.8mm clamp, 5 degree flare, 11 degree outsweep |
| Seatpost | Cervélo Alloy 27.2 |
| Saddle | Cervélo Road Saddle |
| Shifters | SRAM Apex, 11 speed |
| Brake Calipers | SRAM Apex |
| Brake Rotor | SRAM Centerline 6-Bolt |
| Front Derailleur | - |
| Rear Derailleur | SRAM Apex 1 Long Cage, 11 speed |
| Cassette | SRAM PG 1130, 11-42, 11 Speed |
| Chain | SRAM PC-1110, 11 speed |
| Crankset | SRAM Apex 1, 40T, 24mm spindle |
| Bottom Bracket | JY BBright, for GXP spindle |
| Wheels | Alexrims Boondocks 7D, 12x142mm, 28H, 23mm IW, HG freehub, 6 bolt, tubeless compatible, Alexrims Boondocks 7D, 12x100mm, 28H, 23mm IW, 6 bolt, tubeless compatible |
| Thru Axles | Cervelo Aero Thru-Axles, 12x100/142 |
| Tires | Panaracer Gravel King SK Sport 60tpi 700x38c |
| Accessories | Smartpak 400A Top Tube Storage Bag |
Apex 1
$3,100SIZES: 48, 51, 54, 56, 58, 61Please note: price and parts spec information is subject to change.
Open Build Specs
| Sizes | 48, 51, 54, 56, 58, 61 |
| Fork | Cervélo All-Carbon, Tapered Áspero Fork |
| Headset | FSA IS2 1-1/8 x 1-1/2 |
| Stem | Easton EA50 Alloy OR Cervélo Alloy |
| Handlebar | Easton EA50 AX Alloy |
| Seatpost | Easton EA50 Alloy |
| Saddle | Cervelo Road Saddle OR Selle Italia MODEL X Superflow FeC Alloy |
| Shifters | SRAM Apex 1 HRD, 11 spd |
| Brake Calipers | SRAM Apex HRD |
| Brake Rotor | SRAM CenterLine 160mm |
| Front Derailleur | N/A |
| Rear Derailleur | SRAM Apex 1 |
| Cassette | SRAM PG-1130, 11 spd, 11-42 |
| Chain | SRAM PC-1110, 11spd |
| Crankset | SRAM Apex 1 40T |
| Bottom Bracket | JY-BB 22/24 |
| Wheels | Alexrims Boondocks-7D |
| Thru Axles | Cervelo Indexed Thru-Axles w/ Lever, 12x100/142 |
| Tires | Panaracer Gravel King SK Sport Folding 700x38 60tpi |
| Accessories | Smartpak 400A Top Tube Storage Bag |
Frameset
$2,700SIZES: 48, 51, 54, 56, 58, 61Please note: price and parts spec information is subject to change.
Open Build Specs
| Sizes | 48, 51, 54, 56, 58, 61 |
| Fork | Cervélo All-Carbon, Tapered Áspero Fork with Adjustable Trail |
| Headset | FSA IS2 1-1/8 x 1-1/2 |
| Seatpost | Cervélo SP19 27.2 Carbon |
| Thru Axles | Cervelo Indexed Thru-Axles w/ Lever, 12x100/142 |
| Accessories | Cervelo Rear Accessory Mount, Smartpak 400A Top Tube Storage Bag |
GRX RX815 Di2
GRX RX815 Di2
Rival XPLR eTap AXS 1
Rival XPLR eTap AXS 1
GRX RX810
GRX RX810
GRX RX600
GRX RX600
Apex 1
Apex 1
Frameset
Geometry
| 48 | 51 | 54 | 56 | 58 | 61 | |
|---|---|---|---|---|---|---|
| Reach | mm | 370 | 379 | 388 | 397 | 406 | 415 |
| Stack | mm | 505 | 530 | 555 | 580 | 605 | 630 |
| Head Tube Angle | 71° | 71.5° | 72° | 72° | 72° | 72° |
| Front Center | mm | 583 | 592 | 602 | 619 | 637 | 654 |
| Bottom Bracket Drop | mm | 78.5 | 78.5 | 76 | 76 | 73.5 | 73.5 |
| Head Tube Length | mm | 83 | 107 | 133 | 159 | 188 | 214 |
| Top Tube Length | mm | 512 | 532 | 553 | 575 | 591 | 608 |
| Seat Tube Angle | 74.5° | 74° | 73.5° | 73° | 73° | 73° |
| Standover Height | mm | 690 | 732 | 764 | 788 | 814 | 838 |
| Trail | mm | 58.6(700C) / 58.1(650B) | 58.6(700C) / 58.1(650B) | 58.6(700C) / 58.1(650B) | 58.6(700C) / 58.1(650B) | 58.6(700C) / 58.1(650B) | 58.6(700C) / 58.1(650B) |
| Wheel Size | 700C | 700C | 700C | 700C | 700C | 700C |
| Fork Offset | mm | 52/57 | 49/54 | 46/51 | 46/51 | 46/51 | 46/51 |
| Wheelbase | mm | 990 | 1000 | 1010 | 1027 | 1046 | 1063 |
| Chainstay Length | mm | 420 | 420 | 420 | 420 | 420 | 420 |
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.
