Velopedia Bicycle Archive
2025 Argon 18 Sum Frameset
Original manufacturer specifications including Frameset drivetrain, 700c wheels, geometry for 6 published sizes.
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What Velopedia knows
- Model year
- 2025
- Category
- Road
- Original MSRP
- $1,875.00
- Sizes
- XXS, XS, S, M, L, XL
- Geometry
- 6 manufacturer sizes · Geometry context
- Record coverage
- 3 preserved details · 2 archived images · original MSRP · preserved geometry
- Archive ID
- 900002272
Frameset
| Frame Construction | Sum frameset |
|---|
Drivetrain
| Component Group | Frameset |
|---|
Wheels & Tires
| Wheel Size | 700c |
|---|
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 | XXS | XS | S | M | L | XL |
|---|---|---|---|---|---|---|
| Seat tube | 395 mm | 425 mm | 460 mm | 505 mm | 550 mm | 595 mm |
| Effective top tube | 503 mm | 520 mm | 538 mm | 557 mm | 578 mm | 600 mm |
| Head tube | 69 mm | 85 mm | 101 mm | 126 mm | 152 mm | 180 mm |
| Head-tube angle | 71.2° | 72.1° | 72.7° | 72.7° | 72.7° | 73° |
| Seat-tube angle | 75° | 74.5° | 74° | 73.5° | 73° | 72.5° |
| Chainstay / rear center | 410 mm | 410 mm | 410 mm | 410 mm | 410 mm | 410 mm |
| Wheelbase | 967 mm | 972 mm | 975 mm | 990 mm | 1006 mm | 1020 mm |
| Bottom-bracket drop | 69 mm | 73 mm | 77 mm | 77 mm | 77 mm | 77 mm |
| Reach | 375 mm | 382 mm | 389 mm | 397 mm | 405 mm | 414 mm |
| Stack | 471 mm | 493 mm | 516 mm | 540 mm | 565 mm | 592 mm |
| Standover height | 676 mm | 700 mm | 727 mm | 766 mm | 804 mm | 841 mm |
Geometry source: Argon 18 first-party labeled geometry and fit matrix ↗ Measurements can vary by configuration, wheel size, or flip-chip position where noted by the manufacturer.
Geometry tools
Analyze a published size
XXS geometry
Archive context: Its stack of 471 mm sits toward the lower end. The head angle of 71.2° sits toward the steeper end. Its reach of 375 mm sits toward the longer end.
Compared with 38 distinct road geometries in the XXS-equivalent size cohort from model years 2023–2027 in the Velopedia archive.XS geometry
Archive context: The head angle of 72.1° sits toward the steeper end. Its stack of 493 mm sits toward the lower end. Its wheelbase of 972 mm sits toward the shorter end.
Compared with 69 distinct road geometries in the XS-equivalent size cohort from model years 2023–2027 in the Velopedia archive.S geometry
Archive context: Its wheelbase of 975 mm sits toward the shorter end. The head angle of 72.7° sits toward the steeper end. Its bottom-bracket drop of 77 mm sits toward the deeper-drop end.
Compared with 93 distinct road geometries in the Small-equivalent size cohort from model years 2023–2027 in the Velopedia archive.M geometry
Archive context: Its reach of 397 mm sits toward the longer end. Its bottom-bracket drop of 77 mm sits toward the deeper-drop end. Its stack of 540 mm sits toward the lower end.
Compared with 94 distinct road geometries in the Medium-equivalent size cohort from model years 2023–2027 in the Velopedia archive.L geometry
Archive context: Its bottom-bracket drop of 77 mm sits toward the deeper-drop end. The seat angle of 73° sits toward the more relaxed end. Its reach of 405 mm sits toward the longer end.
Compared with 82 distinct road geometries in the Large-equivalent size cohort from model years 2023–2027 in the Velopedia archive.XL geometry
Archive context: The seat angle of 72.5° sits toward the more relaxed end. Its bottom-bracket drop of 77 mm sits toward the deeper-drop end. Its reach of 414 mm sits toward the longer end.
Compared with 67 distinct road geometries in the XL-equivalent size cohort from model years 2023–2027 in the Velopedia archive.Used-frameset inspection
If you’re buying this frameset used
Before buying: confirm the serial number and exact model, inspect frame and fork alignment, and inventory every included axle, hanger, clamp, headset part, cable guide and proprietary fitting.
Inspect the frame and fork →- FrameInspect the complete frame and fork in bright light for cracks, dents, distortion, corrosion, impact marks, suspicious paint differences or signs of repair. Check the head tube, bottom-bracket area, dropouts, joints and clamped surfaces especially closely.Inspect the frame and fork →
- Included hardwareInventory every axle, hanger, clamp, headset part, cable guide, frame plug and proprietary fitting included with the frameset. Confirm replacement availability before treating a missing small part as insignificant.
- AlignmentSight along the frame and fork from several directions. Confirm that the fork, rear dropouts, head tube and other visible interfaces appear straight; professional measurement is appropriate when alignment cannot be established visually.
Used-frameset inspection checklist 13 universal checks for a record with limited component data Open checklistClose checklist
The archived record does not contain enough component detail for a fully specification-informed frameset checklist. Use these universal checks on the frameset in front of you, inventory every included part and confirm exact interfaces before choosing components.
Identity and fit
Follow the full used-bike inspection order →Archived: 2025 Argon 18 Sum Frameset · Road · Published sizes: XXS, XS, S, M, L, XL
Frame and fork
Inspect the frame and fork →Archived: Frame: Sum frameset
Alignment
Inspect the frame and fork →Frame interfaces
Inspect the bottom bracket and shell →Before accepting the frameset
Inspect the frame and fork →Build relationships are limited to the archived manufacturer specifications. Confirm exact fit and standards before ordering parts or performing service.
Have you owned this bike?Help document firsthand fit, ride and maintenance details that may no longer be available.
This archive record has limited published detail. Share what would help another rider understand how this model fit, rode and held up over time. Velopedia reviews every contribution before publication.
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Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.