Warbird C GRX 820 2x
Warbird C GRX 820 2x
The most comfortable gravel bike can also be fast. Enter Warbird C GRX 820 2x. Its carbon fiber frameset and gravel race geometry emphasize stability and endurance, while fatigue-fighting Class 5 VRS™ keeps you feeling fresh as you pile on the miles. Speaking of long rides, Warbird’s frame and fork cargo mounts let you carry your snacks, repair kit, extra layers, and more so you can worry less about resupply stops. And that Shimano GRX 820 2x12 groupset? It’s as good as mechanical shifting gets in the gravel world.
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Warning for Residents of California
Warning for Residents of California
⚠️ WARNING: This product can expose you to chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.



Bike Key Features
-
On-Bike Storage
View More- Adventures require gear and riders should get to choose whether they carry it on their bike or on their body
-
Frame Protection
View More- Our products are built from experience — we’ve been there enough to know that a carbon fork can benefit from added protection just as much as the downtube on a suspension bike.
-
Class 5 VRS
View More- Comfort equates to speed and distance over rough terrain
- Rider benefit is inherent to the design
Product Details
Build Kit
Frameset
Frame
Warbird
Color
Tan
Fork
Waxwing Deluxe V2
Rear Shock
N/A
Components
Headset
FSA NO.42/ACB
Seatpost
Salsa Guide, zero offset
Stem
Salsa Guide
Grips/Bar Tape
Anti-slip, shock-proof silicone tape
Saddle
WTB Gravelier Medium, Cromoly SL, 142 x 250mm
Handlebar
Salsa Cowbell
Drivetrain
Front Derailleur
Shimano GRX RX820 SGS
Rear Derailleur
Shimano GRX RX820 SGS
Cassette
Shimano HG710, 11–36t, 12-speed
Chain
Shimano M6100
Crankset
Shimano GRX RX8200-2, 48–31t
Shifter
Shimano GRX RX820
Brake Levers
Shimano GRX RX820
Brake Calipers
Shimano GRX RX820
Bottom Bracket
Shimano RS500-PB
Rotors
Shimano RT54 (Center Lock, 160mm front and rear)
Wheels
Front Tire
Teravail Cannonball 700c x 42mm, Durable casing, tubeless-ready
Rear Tire
Teravail Cannonball 700c x 42mm, Durable casing, tubeless-ready
Front Hub
Shimano TC500, 12 x 100mm
Rear Hub
Shimano TC500, 12 x 142mm
Spoke
2.0/1.8 gauge, black
Rim
WTB EZR i25, TCS 2.0, 28h, 700c (taped w/ WTB tubeless valve and sealant included)
Weight
Complete Bike
20 lb 12 oz for 56cm
Geometry

Size | 49cm | 52.5cm | 54.5cm | 56cm | 57.5cm | 59cm | 61cm |
---|---|---|---|---|---|---|---|
A. Effective Top Tube | 499.0 | 525.0 | 545.0 | 560.0 | 575.0 | 590.0 | 610.0 |
B. Stand Over | 670.2 | 714.48 | 744.3 | 770.11 | 785.96 | 808.4 | 830.55 |
C. Reach | 360.24 | 368.13 | 371.97 | 381.19 | 390.42 | 399.65 | 407.74 |
D. Stack | 517.85 | 547.09 | 565.97 | 584.85 | 603.73 | 622.61 | 641.5 |
E. Total Seat Tube Length | 390.0 | 440.0 | 475.0 | 510.0 | 520.0 | 545.0 | 570.0 |
F. Headtube Length | 90.0 | 120.0 | 140.0 | 160.0 | 180.0 | 200.0 | 220.0 |
G. Headtube Angle |
71.0
|
70.75
|
70.75
|
70.75
|
70.75
|
70.75
|
70.75
|
H. Seat Tube Angle |
75.0
|
74.0
|
73.0
|
73.0
|
73.0
|
73.0
|
72.5
|
I. BB Drop | 70.0 | 70.0 | 70.0 | 70.0 | 70.0 | 70.0 | 70.0 |
J. BB Height | 279.0 | 279.0 | 279.0 | 279.0 | 279.0 | 279.0 | 279.0 |
K. Chainstay Length | 430.0 | 430.0 | 430.0 | 430.0 | 430.0 | 430.0 | 430.0 |
L. Fork Length Axle to Crown | 405.0 | 405.0 | 405.0 | 405.0 | 405.0 | 405.0 | 405.0 |
M. Fork Offset | 50.0 | 50.0 | 50.0 | 50.0 | 50.0 | 50.0 | 50.0 |
N. Wheelbase | 996.14 | 1011.96 | 1022.39 | 1038.21 | 1054.03 | 1069.85 | 1084.54 |
Crank Arm Length | 165.0 | 170.0 | 170.0 | 172.5 | 172.5 | 175.0 | 175.0 |
Handlebar Width | 380.0 | 400.0 | 420.0 | 440.0 | 460.0 | 460.0 | 460.0 |
Recommended Rider Height | 14.0 - 157.0 | 155.0 - 165.0 | 162.0 - 173.0 | 170.0 - 180.0 | 178.0 - 188.0 | 185.0 - 193.0 | 190.0 |
Stem Length | 60.0 | 70.0 | 80.0 | 90.0 | 90.0 | 100.0 | 110.0 |
Measurements based on:
- A Warbird Carbon Fork which is 405 x 50mm offset
- A 700c x 32mm tire measuring 698mm in diameter
- Standover for all sizes is measured vertically to top of toptube from a position 50mm forward of BB center
Frame Specs
- Design Wheel/Tire Sizes 622 - 32 (700 x 32mm)
- Alternate Wheel/Tire Sizes 622 – 32-45 (700c x 32–45mm / 1.2–1.8”) / 584 – 47-51 (650b x 47mm–51mm / 1.85–2.0”)
- Max Tire Outer Diameter 700c: 716mm / 650b: 696mm (Some front derailleurs may reduce tire clearance. Check manufacturer’s specifications to confirm clearance before installing.)
- Frame Construction Carbon
- Fork Construction Carbon
- Suspension Fork Length (Travel) 436.7mm A2C (40mm travel)
- Rigid Fork Length 405mm A2C
- Fork Offset 50mm
- Rear Spacing 142mm
- Rear Axle Size M12 x 167mm, TP=1.5, TL=20
- Headset - Upper IS41
- Headset - Lower IS52
- Front Spacing 100mm
- Front Axle Size M12 x 120mm, TP=1.5, TL=12
- Steerer Tube 28.6mm
- Crown Race Integrated SHIS 40, 36° angle
- Seatpost 27.2mm
- Seatpost Clamp 32.0mm
- Derailluer Hanger 465, (QBP# FS2322)
- Bottom Bracket BB86 press fit
- Crankset (Max Ring) 1x: 44t max; 2x: 52/36t max, 46/30t minimum
- Accessory Mounts Downtube Accessory Mounts: Yes, one; Rack Mounts Frame: Yes; Fender Mounts Frame: Yes, required fender hardware included
- Bottle Mounts Frame: Frames up to 54cm: 2 in main triangle, frames 56cm and larger: 3 in main triangle; Fork: Yes, two
- Fork Mounts Rack Mounts Fork: Yes, low-rider; Fender Mounts Fork: Yes
Supportive Documents
Additional Features
Class 5 VRS
The Class 5™ Vibration Reduction System has specially shaped seatstays with a tall, thin, vertically oriented profile that promotes vertical compliance by allowing the seatstays to "flex" outwards on impacts. The horizontally oriented chainstays work to resist torque and maintain a laterally stiff rear end. The seatstays and chainstays lack bridges, furthering the full length of the stays to contribute to flexibility. And a rear thru-axle delivers precise tracking while allowing the seatstays to provide that incredible compliance
Interior Junction Control Molding Technology
We use internal molds at all the main front triangle junctions during layup and curing. This allows for precise control of wall thickness and inner wall smoothness in these areas. This process increases compaction and reduces voids and wrinkles in critical high stress zones. The end result is a top-quality carbon frame that delivers consistent high performance
Warbird Geometry
Warbird features the latest evolution of our already industry leading gravel racing geometry. Warbird places the rider in a position that can be maintained for hours on end over bumpy B-roads and loose surfaces, drastically reducing fatigue. A low bottom bracket and stable wheelbase help keep the tires planted and boost confidence. Long top tubes paired with short stems provide increased stability at high speed and on rough descents
Waxwing Deluxe V2 Fork
Our Waxwing V2 gravel fork features carbon construction with a carbon steerer and utilizes a 12x100mm thru axle for true tracking and flat-mount brake for quick setup. Waxwing V2 also comes loaded with features. Three-Pack mounts accommodate bottle cages or Anything Cages for increased hydration or cargo capacity. Mid-blade rack mounts allow make it easy to install our Down Under low rider rack for front panniers. Fender mounts let you keep riding comfortably in wet weather
700c x 42 mm Wheel/Tire Spec
For faster acceleration and overall speed
Dual Wheel Size Compatible
Warbird fits up to 700c x 45 mm OR 650b x 2.0" wheels/tires. We offer models with each spec so you can choose the wheel size that best meets your needs, or set up a second wheel set so your Warbird is optimized for the race course at hand
Top tube bag mounts
Bolt on your EXP-R Series Trillium Tube Bag for a secure connection that eliminates strap wear.
Generous Water Bottle Capacity
Helps you stay hydrated during ultra-endurance training rides and races. 2–3 bottle mounts inside main triangle (56 cm and above receive 3), 1 accessory mount on underside of downtube, 2 bottle mounts possible on fork via Three-Pack mounts
Internal Sleeved Cable Routing
Helps you stay hydrated during ultra-endurance training rides and races. 2–3 bottle mounts inside main triangle (56 cm and above receive 3), 1 accessory mount on underside of downtube, 2 bottle mounts possible on fork via Three-Pack mounts
Refined Drivetrain Compatibility
Designed to accept 1x, 2x, and current electronic offerings
Stealth Dropper Post Compatible
Accepts 27.2 mm dropper posts for more confident descending at high speeds on rough, unpredicatable gravel roads. Internal stealth routing when running 1x setups
Fender Mounts
Fenders allow for longer, more pleasant rides in wet weather
Rear Rack Friendly
Compatible with the Salsa Wanderlust Rack when using the optional Salsa Rack-Lock seat collar
FAQ
Can I run fenders on the Warbird?
Yes, Warbird will fit up to 700c x 38mm tires or 650b x 47mm tires with fenders.
Can I use a suspension fork on this frame?
Yes, this frame was designed and tested for use with a gravel suspension fork with an axle-to-crown length up to 436.7mm (typically 40 mm of travel). Check the fork manufacturer’s specifications to ensure the model and travel combination you intend to use is equal to or less than this length. Using a longer length fork will void the frame warranty andcould result in frame failure.
Do you offer touch-up paint?
No, we do not offer touch up paint. Hobby shops or automotive stores are excellent places to find paint. We suggest you test the paint on a scrap piece of metal before using it on your frame.
I crashed and dented (or cracked) my frame. Is it safe to ride?
Stop riding your frame immediately and take it to the nearest Salsa authorized dealer for inspection. A dented or cracked tube represents a structural weakening of the frame, and is a safety risk.
What is the warranty for this bike?
View Warranty
Warranty Information
All Salsa products are warranted against manufacturing defects in materials and workmanship from the date of retail purchase of the product, subject to the limitations detailed below.