Velopedia Bicycle Archive
2025 Salsa Warbird C GRX 820 2x
Cyclocross/Gravel bicycle from the Velopedia specification archive.
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- Original MSRP
- $4,299.00
- Sizes
- 49cm, 52.5cm, 54.5cm, 56cm, 57.5cm, 59cm, 61cm
- Colors
- Tan
- Weight
- 20 lb 12 oz for 56cm
- Geometry
- 7 manufacturer sizes · Ride analysis
- Archive ID
- 900000642
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Velopedia analysis
What the specifications mean
The 327% cassette range describes the available gearing more clearly than the component-group name alone. The rims and tires are tubeless-ready, but that label does not confirm the bike is currently set up without tubes; tape, valves, sealant and tire condition still matter. Carbon construction changes the inspection emphasis from metal-style dents and corrosion to impact damage, ripples and overtightened clamp areas.
Gearing
327% cassette range
Calculated from the published 11–36-tooth sprocket span.
Tire setup
Tubeless-ready
The rims and tires may support tubeless use, but the bike may still be running tubes.
Frame material
Carbon / composite
Look for impact damage and clamp marks rather than metal-style dents or rust.
Wheel standard
700C · 622 mm
The label fixes rim diameter, not tire width or available frame and fork clearance.
Used-bike inspection
If you’re buying this bike used
Before any test ride: both brakes should stop the bike firmly and release cleanly; both wheels should run true and be securely attached; tires should have no casing damage; and the headset, handlebar, stem, cranks and pedals should have no looseness or play.
Follow the full used-bike inspection order →- FrameInspect the frame in bright light, especially around the head tube, bottom bracket, chainstays and clamped areas. Look for cracks, ripples, crushed sections or signs of a previous impact.Inspect the frame and fork →
- BrakesTest each brake separately and confirm it stops firmly and releases cleanly. Inspect the pads and braking surfaces for wear or contamination, and check the cables or hoses for damage.Inspect the brakes →
- DrivetrainShift through every gear under light load and measure chain wear. Confirm that the shifter, derailleur, chain and cassette belong to the same 12-speed system.Check drivetrain wear →
- Wheels & tiresSpin both wheels and watch the rims for side-to-side or vertical movement. Check for dents, cracks, loose or uneven spokes and hub play, then inspect both tire casings for cuts, cracking or exposed threads. If it is set up tubeless, confirm both tires hold pressure and ask when the sealant was last refreshed.Check wheels and tires →
Bike-specific inspection checklist 20 checks based on 5 archived component groups Open checklistClose checklist
This checklist uses the archived equipment for this bike. It cannot confirm the condition, service history or later component changes of the example in front of you.
Identity and fit
Follow the full used-bike inspection order →Archived: 2025 Salsa Warbird C GRX 820 2x · Cyclocross/Gravel · Published sizes: 49cm, 52.5cm, 54.5cm, 56cm, 57.5cm, 59cm, 61cm
Frame and fork
Inspect the frame and fork →Archived: Frame: Carbon · Fork: Carbon · Carbon Fiber
Drivetrain
Check drivetrain wear →Archived: Shifters: Shimano GRX RX820 · Front derailleur: Shimano GRX RX820 SGS · Rear derailleur: Shimano GRX RX820 SGS · Crankset: Shimano GRX RX8200-2, 48–31t · Bottom bracket: Shimano RS500-PB · Cassette: Shimano HG710, 11–36t, 12-speed · Chain: Shimano M6100
Brakes
Inspect the brakes →Archived: Brakes: Brake Calipers: Shimano GRX RX820; Brake Levers: Shimano GRX RX820; Rotors: Shimano RT54 (Center Lock, 160mm front and rear)
Wheels and tires
Check wheels and tires →Archived: Wheel size: 700C; 32"; 650B · Rims: WTB EZR i25, TCS 2.0, 28h, 700c (taped w/ WTB tubeless valve and sealant included) · Hubs: (F) Shimano TC500, 12 x 100mm / (R) Shimano TC500, 12 x 142mm · Front tire: Teravail Cannonball 700c x 42mm, Durable casing, tubeless-ready · Rear tire: Teravail Cannonball 700c x 42mm, Durable casing, tubeless-ready
Controls and contact points
Archived: Headset: FSA NO.42/ACB · Handlebar: Salsa Cowbell · Stem: Salsa Guide · Seatpost: Salsa Guide, zero offset · Saddle: WTB Gravelier Medium, Cromoly SL, 142 x 250mm
Before and during the test ride
Follow the full used-bike inspection order →Interpretation based on the archived manufacturer specifications. Confirm exact fit and standards before ordering parts or performing service.
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Frameset
| Frame Construction | Carbon |
|---|---|
| Frame Material | Carbon Fiber |
| Fork | Carbon |
| Fork Material | Carbon Fiber |
Drivetrain
| Shifters | Shimano GRX RX820 |
|---|---|
| Front Derailleur | Shimano GRX RX820 SGS |
| Rear Derailleur | Shimano GRX RX820 SGS |
| Crankset | Shimano GRX RX8200-2, 48–31t |
| Bottom Bracket | Shimano RS500-PB |
| Cassette | Shimano HG710, 11–36t, 12-speed |
| Chain | Shimano M6100 |
Brakes
| Brakes | Brake Calipers: Shimano GRX RX820; Brake Levers: Shimano GRX RX820; Rotors: Shimano RT54 (Center Lock, 160mm front and rear) |
|---|
Cockpit & Contact Points
| Headset | FSA NO.42/ACB |
|---|---|
| Handlebar | Salsa Cowbell |
| Stem | Salsa Guide |
| Saddle | WTB Gravelier Medium, Cromoly SL, 142 x 250mm |
| Seatpost | Salsa Guide, zero offset |
Wheels & Tires
| Hubs | (F) Shimano TC500, 12 x 100mm / (R) Shimano TC500, 12 x 142mm |
|---|---|
| Rims | WTB EZR i25, TCS 2.0, 28h, 700c (taped w/ WTB tubeless valve and sealant included) |
| Spokes | 2.0/1.8 gauge, black |
| Front Tire | Teravail Cannonball 700c x 42mm, Durable casing, tubeless-ready |
| Rear Tire | Teravail Cannonball 700c x 42mm, Durable casing, tubeless-ready |
| Wheel Size | 700C; 32"; 650B |
Size-specific frame data
Geometry
Manufacturer-published geometry normalized for consistent archival comparison. Effective top tube and reach remain separate measurements because they describe different aspects of fit.
| Measurement | 49cm | 52.5cm | 54.5cm | 56cm | 57.5cm | 59cm | 61cm |
|---|---|---|---|---|---|---|---|
| Seat tube | 390 mm | 440 mm | 475 mm | 510 mm | 520 mm | 545 mm | 570 mm |
| Effective top tube | 499 mm | 525 mm | 545 mm | 560 mm | 575 mm | 590 mm | 610 mm |
| Head tube | 90 mm | 120 mm | 140 mm | 160 mm | 180 mm | 200 mm | 220 mm |
| Head-tube angle | 71° | 70.75° | 70.75° | 70.75° | 70.75° | 70.75° | 70.75° |
| Seat-tube angle | 75° | 74° | 73° | 73° | 73° | 73° | 72.5° |
| Chainstay / rear center | 430 mm | 430 mm | 430 mm | 430 mm | 430 mm | 430 mm | 430 mm |
| Wheelbase | 996.14 mm | 1011.96 mm | 1022.39 mm | 1038.21 mm | 1054.03 mm | 1069.85 mm | 1084.54 mm |
| Bottom-bracket drop | 70 mm | 70 mm | 70 mm | 70 mm | 70 mm | 70 mm | 70 mm |
| Bottom-bracket height | 279 mm | 279 mm | 279 mm | 279 mm | 279 mm | 279 mm | 279 mm |
| Reach | 360.24 mm | 368.13 mm | 371.97 mm | 381.19 mm | 390.42 mm | 399.65 mm | 407.74 mm |
| Stack | 517.85 mm | 547.09 mm | 565.97 mm | 584.85 mm | 603.73 mm | 622.61 mm | 641.5 mm |
| Standover height | 670.2 mm | 714.48 mm | 744.3 mm | 770.11 mm | 785.96 mm | 808.4 mm | 830.55 mm |
| Fork offset / rake | 50 mm | 50 mm | 50 mm | 50 mm | 50 mm | 50 mm | 50 mm |
| Fork length / axle-to-crown | 405 mm | 405 mm | 405 mm | 405 mm | 405 mm | 405 mm | 405 mm |
| Crank length | 165 mm | 170 mm | 170 mm | 172.5 mm | 172.5 mm | 175 mm | 175 mm |
| Stem length | 60 mm | 70 mm | 80 mm | 90 mm | 90 mm | 100 mm | 110 mm |
Geometry source: Salsa first-party metric geometry table ↗ Measurements can vary by configuration, wheel size, or flip-chip position where noted by the manufacturer.
Geometry interpretation
What this geometry means
49cm geometry
Riding position
A 360.2 mm reach and 517.9 mm stack give this size a middle-ground gravel proportion: neither especially stretched and low nor unusually upright. A 75° seat angle puts the rider relatively forward over the bottom bracket, shortening the effective seated reach compared with a more relaxed seat angle.
Handling tendencies
A 71° head angle combined with a 996.1 mm wheelbase points to moderate and balanced steering and chassis behavior. The longer the chassis and slacker the front end, the more the bike tends to favor composure over very quick direction changes. A 70 mm bottom-bracket drop places the rider relatively low between the wheels, which can add a settled cornering feel while reducing pedal clearance compared with a higher bottom bracket.
52.5cm geometry
Riding position
A 368.1 mm reach and 547.1 mm stack give this size a middle-ground gravel proportion: neither especially stretched and low nor unusually upright.
Handling tendencies
A 70.8° head angle combined with a 1012 mm wheelbase points to moderate and balanced steering and chassis behavior. The longer the chassis and slacker the front end, the more the bike tends to favor composure over very quick direction changes. A 70 mm bottom-bracket drop places the rider relatively low between the wheels, which can add a settled cornering feel while reducing pedal clearance compared with a higher bottom bracket.
Archive context
Its wheelbase of 1012 mm sits toward the shorter end. The seat angle of 74° sits somewhat more relaxed than typical. The head angle of 70.8° sits somewhat steeper than typical.
54.5cm geometry
Riding position
A 372 mm reach and 566 mm stack give this size a middle-ground gravel proportion: neither especially stretched and low nor unusually upright.
Handling tendencies
A 70.8° head angle combined with a 1022.4 mm wheelbase points to moderate and balanced steering and chassis behavior. The longer the chassis and slacker the front end, the more the bike tends to favor composure over very quick direction changes. A 70 mm bottom-bracket drop places the rider relatively low between the wheels, which can add a settled cornering feel while reducing pedal clearance compared with a higher bottom bracket.
Archive context
The seat angle of 73° sits toward the more relaxed end. Its bottom-bracket drop of 70 mm sits toward the shallower-drop end. The head angle of 70.8° sits toward the steeper end.
56cm geometry
Riding position
A 381.2 mm reach and 584.9 mm stack give this size a middle-ground gravel proportion: neither especially stretched and low nor unusually upright.
Handling tendencies
A 70.8° head angle combined with a 1038.2 mm wheelbase points to moderate and balanced steering and chassis behavior. The longer the chassis and slacker the front end, the more the bike tends to favor composure over very quick direction changes. A 70 mm bottom-bracket drop places the rider relatively low between the wheels, which can add a settled cornering feel while reducing pedal clearance compared with a higher bottom bracket.
Archive context
The seat angle of 73° sits toward the more relaxed end. Its bottom-bracket drop of 70 mm sits toward the shallower-drop end. Its reach of 381.2 mm sits somewhat shorter than typical.
57.5cm geometry
Riding position
The 603.7 mm stack is tall relative to the 390.4 mm reach, leaving room for a more upright, relaxed gravel position.
Handling tendencies
A 70.8° head angle combined with a 1054 mm wheelbase points to moderate and balanced steering and chassis behavior. The longer the chassis and slacker the front end, the more the bike tends to favor composure over very quick direction changes. A 70 mm bottom-bracket drop places the rider relatively low between the wheels, which can add a settled cornering feel while reducing pedal clearance compared with a higher bottom bracket.
Archive context
Its reach of 390.4 mm sits somewhat shorter than typical. Its bottom-bracket drop of 70 mm sits somewhat shallower than typical. The seat angle of 73° sits somewhat more relaxed than typical.
59cm geometry
Riding position
The 622.6 mm stack is tall relative to the 399.7 mm reach, leaving room for a more upright, relaxed gravel position.
Handling tendencies
A 70.8° head angle combined with a 1069.9 mm wheelbase points to moderate and balanced steering and chassis behavior. The longer the chassis and slacker the front end, the more the bike tends to favor composure over very quick direction changes. A 70 mm bottom-bracket drop places the rider relatively low between the wheels, which can add a settled cornering feel while reducing pedal clearance compared with a higher bottom bracket.
Archive context
Its reach of 399.7 mm sits toward the shorter end. Its bottom-bracket drop of 70 mm sits somewhat shallower than typical. Its wheelbase of 1069.9 mm sits somewhat shorter than typical.
61cm geometry
Riding position
The 641.5 mm stack is tall relative to the 407.7 mm reach, leaving room for a more upright, relaxed gravel position. The 72.5° seat angle is relatively relaxed, shifting the seated position rearward and effectively lengthening the cockpit compared with a steeper seat-tube layout.
Handling tendencies
A 70.8° head angle combined with a 1084.5 mm wheelbase points to moderate and balanced steering and chassis behavior. The longer the chassis and slacker the front end, the more the bike tends to favor composure over very quick direction changes. A 70 mm bottom-bracket drop places the rider relatively low between the wheels, which can add a settled cornering feel while reducing pedal clearance compared with a higher bottom bracket.
Archive context
The seat angle of 72.5° sits toward the more relaxed end. Its reach of 407.7 mm sits somewhat shorter than typical. The head angle of 70.8° sits somewhat slacker than typical.
Across the size range
From 49cm to 61cm, reach grows by 47.5 mm and stack by 123.7 mm, showing how the frame becomes both longer and taller through the published size range. The rear center stays essentially constant at about 430 mm across sizes, so most of the wheelbase growth happens in the front half of the bike rather than by lengthening the rear triangle.
Geometry describes frame proportions and likely tendencies, not a ride test. Rider proportions, cockpit setup, tires, suspension settings, wheel configuration, and component choices can materially change how a bicycle fits and feels.
Gallery
Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.