ÁSPERO-5
FLAT OUT
Designed for long, fast gravel races, Aspero-5 is for those who toe the start line with purpose, and aim to be in the group straightaway. Our engineers like to say, “if it looks fast, it probably is.” It’s a bit tongue-in-cheek, but there’s some truth to it, and Aspero-5 looks fast standing still. The cables are tucked neatly inside the stem and headtube, there’s a hint of a wheel cutout, and all of the tube shapes come from our race-proven library of shapes.
FLAT OUT
Designed for long, fast gravel races, Aspero-5 is for those who toe the start line with purpose, and aim to be in the group straightaway. Our engineers like to say, “if it looks fast, it probably is.” It’s a bit tongue-in-cheek, but there’s some truth to it, and Aspero-5 looks fast standing still. The cables are tucked neatly inside the stem and headtube, there’s a hint of a wheel cutout, and all of the tube shapes come from our race-proven library of shapes.
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LIGHTWEIGHT SPEED
Some might say aero doesn’t matter on a gravel bike, but if you’ve battled a headwind across an open prairie, the thirty-two grams of drag you’ll save with the Áspero-5 come as a welcome respite. Most gravel racing is done without the benefit of a World Tour peloton—or World Tour tactics—and when it’s your nose in the wind all day, it’s nice to know your bike’s shouldering a bit of the load.
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.
MULTIPLE CONFIGURATIONS
We designed Aspero with clearance for up to 700c x 41mm tires or 650b x 47mm tires. Of course, there are variables—rim width, tire casing, and tread depth—which will affect final clearance. We (and the International Organization for Standardization, or ISO), always recommend 6mm 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.
SRAM INTEGRATED POWER
Red and Force builds include Quarq Zero powermeters integrated into the crank. The integration of a powermeter results in better stiffness, lighter weight, and improved accuracy over aftermarket solutions—and the DZero delivers power measurement accurate to +/- 1.5%, even in variable temperatures.
Red AXS Eagle
$14,500SIZES: 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-5 Fork |
| Headset | FSA IS2 1-1/4 x 1-1/2 |
| Stem | Cervélo ST32 Alloy |
| Handlebar | Cervélo AB09 Carbon, 31.8mm clamp, 16 degree flare |
| Seatpost | Cervélo SP19 Carbon 27.2 |
| Saddle | Prologo Nago R4 PAS NACK |
| Shifters | SRAM Red AXS, 12 speed |
| Brake Calipers | SRAM Red |
| Brake Rotor | SRAM Paceline X Centerlock |
| Rear Derailleur | SRAM XX1 Eagle AXS, 12 speed |
| Cassette | SRAM XX1 Eagle, 10-50 12 speed |
| Chain | SRAM XX1 Eagle, 12 speed |
| Crankset | SRAM Red 1 AXS, 44T, DUB Wide, with power meter |
| Bottom Bracket | SRAM DUB Ceramic Wide, BBright |
| Wheels | Rear: Reserve 44TA GR, Zipp ZR1 ST, 12x142mm, XDR freehub, 24H centerlock, tubeless compatible Front: Reserve 40TA GR, Zipp ZR1 ST, 12x100mm, 24H centerlock, tubeless compatible |
| Thru Axles | Cervelo Aero Thru-Axles, 12x100/142 |
| Tires | Panaracer Gravel King SK 700x40mm |
| Accessories | Smartpak 400A Top Tube Storage Bag |
GRX RX825 Di2
$10,500SIZES: 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-5 Fork |
| Headset | FSA IS2 1-1/4 x 1-1/2 |
| Stem | Cervélo ST32 Alloy |
| Handlebar | Cervélo AB09 Carbon, 31.8mm clamp, 16 degree flare |
| Seatpost | Cervélo SP19 Carbon 27.2 |
| Saddle | Prologo Nago R4 PAS TiRox |
| Shifters | Shimano GRX, RX825, 12 speed |
| Brake Calipers | Shimano GRX RX820 |
| Brake Rotor | Shimano CL800 Centerlock |
| Front Derailleur | Shimano GRX, RX825, 12 speed |
| Rear Derailleur | Shimano GRX, RX825, 12 speed |
| Cassette | Shimano HG710, 11-36, 12 speed |
| Chain | Shimano M8100, 12 speed |
| Crankset | Shimano GRX 820, 48/31T, 12 Speed, 4iiii Precision, GEN3+ Single Sided |
| Bottom Bracket | FSA, BBright thread together, 24mm spindle |
| Wheels | Rear: Reserve 44TA GR, Zipp 176, 12x142mm, HG freehub, 24H centerlock, tubeless compatible Front: Reserve 40TA GR, Zipp 76, 12x100mm, 24H centerlock, tubeless compatible |
| Thru Axles | Cervelo Aero Thru-Axles, 12x100/142 |
| Tires | Panaracer Gravel King SK 700x40mm |
| Accessories | Smartpak 400A Top Tube Storage Bag |
Frameset
$6,900SIZES: 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-5 Fork |
| Headset | FSA IS2 1-1/4 x 1-1/2 |
| Stem | Cervélo ST32 Alloy |
| Handlebar | Cervélo AB09 Carbon, 31.8mm clamp, 16 degree flare |
| Seatpost | Cervélo SP19 Carbon 27.2 |
| Thru Axles | Cervelo Aero Thru-Axles, 12x100/142 |
Red AXS Eagle
GRX RX825 Di2
Frameset
Geometry
| 48 | 51 | 54 | 56 | 58 | 61 | |
|---|---|---|---|---|---|---|
| Reach | mm | 370 | 379 | 388 | 397 | 406 | 415 |
| Stack | mm | 505 | 530 | 555 | 580 | 605 | 30 |
| 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.
