Cervélo Áspero GRX RX820 2026
Contender Signature Service
A complimentary $300 value covering professional assembly, tuning, inspection, and careful re-packaging by our technicians.
Request Info
Cervélo Áspero GRX RX820 2026
Product Details
The Cervélo Áspero GRX RX820 established its reputation in 2019 by reshaping gravel expectations with an aggressive, race-first philosophy that prioritized uncompromising speed above all else. This newest iteration receives a thoughtful evolution that maintains that legendary performance while adding enhanced comfort, improved drivetrain compatibility, and a refined overall design aesthetic.
The updated Áspero features a fully internal cable routing system that creates a dramatically sleeker profile while delivering measurable aerodynamic improvements. The addition of a UDH-compatible derailleur hanger opens possibilities for future drivetrain upgrades while simplifying maintenance requirements. Whether attacking on technical terrain or maintaining high speeds on open fire roads, the refined frame cuts through wind resistance with greater efficiency, helping riders conserve valuable energy over extended, demanding efforts.
Drawing inspiration from Cervélo's proven R5-CX cyclocross expertise, engineers refined the rear triangle geometry and front-end compliance characteristics to better absorb trail chatter while preserving the snappy, responsive handling that defines the Áspero experience. Generous mud clearance ensures reliable performance across challenging weather conditions and varied surface adventures, from muddy cyclocross races to remote gravel expeditions.
Perfect for competitive gravel racers and performance-focused riders who refuse to compromise on speed, the Áspero GRX RX820 remains the definitive choice for those demanding top-tier capability. Whether chasing podium positions or pursuing fast weekend adventures, this bike delivers the race-proven performance that serious gravel riders depend on.
Key Features
- Frame – Cervélo All-Carbon with Internal Cable Routing
- Drivetrain – Shimano RX820 12-Speed
- Wheelset – Reserve 30 GR Aluminum
| Specification | Detail |
|---|---|
| Fork | Cervélo All-Carbon, Tapered Aspero Fork |
| Headset | FSA IS2 1-1/4, 45° x 45° / 1-1/2, 36° x 45° |
| Seatpost | Cervélo SP19 Carbon 27.2 |
| Seatpost Sizing | Size 48 - 0mm Size 51 - 0mm Size 54 - 0mm Size 56 - 0mm Size 58 - 0mm Size 61 - 15mm |
| Left Shifter/Brake | Shimano GRX, RX820 |
| Right Shifter/Brake | Shimano GRX, RX820 |
| Front Derailleur | Shimano GRX, RX820 |
| Rear Derailleur | Shimano GRX, RX820 |
| Brake Rotors | Shimano CL800 Centerlock |
| Front Thru Axle | Cervélo Aero Thru Axle Front, M12x1.5mm, 127mm length |
| Rear Thru Axle | Cervélo Aero Thru Axle Rear, M12x1.0mm, 169mm length |
| Bottom Bracket | FSA, T47 BBright for 24mm spindle |
| Crankset | Shimano GRX, RX820, 48/31T |
| Crank Sizing | Size 48 - 170mm Size 51 - 170mm Size 54 - 170mm Size 56 - 170mm Size 58 - 172.5mm Size 61 - 172.5mm |
| Handlebar | Cervélo AB09 Carbon, 31.8mm clamp, 16 degree flare |
| Handlebar Sizing | Size 48 - 36cm Size 51 - 38cm Size 54 - 40cm Size 56 - 40cm Size 58 - 42cm Size 61 - 42cm |
| Stem | Cervélo ST36 Alloy |
| Stem Sizing | Size 48 - 80mm Size 51 - 80mm Size 54 - 90mm Size 56 - 90mm Size 58 - 100mm Size 61 - 100mm |
| Saddle | Prologo Nago R4 PAS Steel |
| Cassette | Shimano HG710, 11-36T, 12-Speed |
| Chain | Shimano M8100 |
| Front Wheel | Reserve 30 GR AL, Reserve 4LD, 12x100mm, 24H, centerlock, tubeless compatible |
| Rear Wheel | Reserve 30 GR AL, Reserve 4LD, 12x142mm, XDR freehub, 24H, centerlock, tubeless compatible |
| Tire | WTB Vulpine TCS Light Fast Rolling Dual DNA 60tpi 700x45c |
| Max Tire Width | 700c - 45mm / 650c - 47mm |
| Measurement | 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) | 577/582 | 587/592 | 597/602 | 614/619 | 631/637 | 648/654 |
| 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) | 681 | 704 | 733 | 757 | 784 | 808 |
| Trail (mm) | 62 | 62 | 62 | 62 | 62 | 62 |
| 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) | 990/995 | 999/1004 | 1010/1015 | 1028/1033 | 1046/1051 | 1063/1068 |
| Chainstay Length (mm) | 425 | 425 | 425 | 425 | 425 | 425 |