Velopedia Bicycle Archive
2021 Kona Sutra ULTD
Original manufacturer specifications including 29" wheels, geometry for 6 published sizes.
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What Velopedia knows
- Model year
- 2021
- Category
- Gravel & Cyclocross
- Original MSRP
- $2,599.00
- Sizes
- 48, 50, 52, 54, 56, 58
- Colors
- Gloss Prism Rust-Purple w/ Metallic Dark Silver & Charcoal Decals
- Geometry
- 6 manufacturer sizes · Geometry context
- Record coverage
- 25 preserved details · archived image · original MSRP · preserved geometry
- Archive ID
- 900002020
Frameset
| Frame Construction | Kona Cromoly Butted |
|---|---|
| Frame Material | Steel |
| Fork | Kona Project Two Cromoly Disc Touring fork |
| Fork Material | Steel |
| Rear Shock | n/a |
Drivetrain
| Shifters | SRAM Rival 1 w/ Integrated Dropper Lever |
|---|---|
| Front Derailleur | n/a |
| Rear Derailleur | SRAM Rival 1 |
| Crankset | SRAM NX; Chainring: 36t X-Sync |
| Bottom Bracket | SRAM 73mm |
| Cassette | SRAM PG1130 11-42t 11spd |
| Chain | SRAM PC1110 |
| Pedals | n/a |
Brakes
| Brakes | Brake Calipers: SRAM Rival 1 Flat mount; Front Brake Rotor: SRAM Centerline 160mm; Rear Brake Rotor: SRAM Centerline 160mm; Brake Levers: SRAM Rival 1 HRD |
|---|
Cockpit & Contact Points
| Headset | FSA No.1/No.10 |
|---|---|
| Handlebar | Kona Road |
| Stem | Kona Road Deluxe |
| Saddle | WTB Volt |
| Seatpost | TranzX Dropper +RAD Internal 31.6mm |
Wheels & Tires
| Hubs | (F) Formula 100x12mm / (R) Formula 142x12mm |
|---|---|
| Rims | WTB KOM Light Team i27 TCS 2.0 |
| Spokes | Stainless Black 14g |
| Front Tire | Maxxis Recon Race EXO TR 29x2.25" |
| Rear Tire | Maxxis Recon Race EXO TR 29x2.25" |
| Wheel Size | 29" |
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 | 48 | 50 | 52 | 54 | 56 | 58 |
|---|---|---|---|---|---|---|
| Seat tube | 410 mm | 410 mm | 455 mm | 455 mm | 500 mm | 535 mm |
| Top tube | 532 mm | 545 mm | 560 mm | 575 mm | 592 mm | 613 mm |
| Head tube | 115 mm | 125 mm | 140 mm | 160 mm | 180 mm | 215 mm |
| Head-tube angle | 69.5° | 69.5° | 69.5° | 69.5° | 69.5° | 69.5° |
| Seat-tube angle | 75° | 74.5° | 74° | 73.5° | 73° | 72.5° |
| Chainstay / rear center | 445 mm | 445 mm | 445 mm | 445 mm | 445 mm | 445 mm |
| Wheelbase | 1062 mm | 1071 mm | 1081 mm | 1094 mm | 1106 mm | 1123 mm |
| Bottom-bracket drop | 74 mm | 74 mm | 74 mm | 72 mm | 72 mm | 72 mm |
| Bottom-bracket height | 301 mm | 301 mm | 301 mm | 303 mm | 303 mm | 303 mm |
| Reach | 380 mm | 385 mm | 390 mm | 395 mm | 400 mm | 405 mm |
| Stack | 568 mm | 578 mm | 592 mm | 609 mm | 627 mm | 660 mm |
| Standover height | 735 mm | 739 mm | 773 mm | 781 mm | 827 mm | 851 mm |
| Fork offset / rake | 55 mm | 55 mm | 55 mm | 55 mm | 55 mm | 55 mm |
| Front center | 628 mm | 636 mm | 647 mm | 658 mm | 670 mm | 688 mm |
| Fork length / axle-to-crown | 430 mm | 430 mm | 430 mm | 430 mm | 430 mm | 430 mm |
Geometry source: Kona first-party archive metric geometry table ↗ Measurements can vary by configuration, wheel size, or flip-chip position where noted by the manufacturer.
Geometry tools
Analyze a published size
48 geometry
Archive context: The chainstay of 445 mm sits toward the longer rear-center end. The seat angle of 75° sits toward the steeper end. Its wheelbase of 1062 mm sits toward the longer end.
Compared with 37 distinct cyclocross/gravel geometries in the Small-equivalent size cohort from model years 2021–2023 in the Velopedia archive.Want to go deeper?Open this exact published size and configuration in the Velopedia Geometry Analyzer, then complete any measurements the manufacturer did not provide.
Analyze 48 geometry 50 geometry
Archive context: Its wheelbase of 1071 mm sits toward the longer end. Its reach of 385 mm sits toward the longer end. Its stack of 578 mm sits toward the taller end.
Compared with 37 distinct cyclocross/gravel geometries in the Small-equivalent size cohort from model years 2021–2023 in the Velopedia archive.Want to go deeper?Open this exact published size and configuration in the Velopedia Geometry Analyzer, then complete any measurements the manufacturer did not provide.
Analyze 50 geometry 52 geometry
Archive context: The chainstay of 445 mm sits toward the longer rear-center end. Its reach of 390 mm sits toward the longer end. The head angle of 69.5° sits toward the slacker end.
Compared with 34 distinct cyclocross/gravel geometries in the Medium-equivalent size cohort from model years 2021–2023 in the Velopedia archive.Want to go deeper?Open this exact published size and configuration in the Velopedia Geometry Analyzer, then complete any measurements the manufacturer did not provide.
Analyze 52 geometry 54 geometry
Archive context: Its reach of 395 mm sits toward the longer end. Its wheelbase of 1094 mm sits toward the longer end. The chainstay of 445 mm sits toward the longer rear-center end.
Compared with 34 distinct cyclocross/gravel geometries in the Medium-equivalent size cohort from model years 2021–2023 in the Velopedia archive.Want to go deeper?Open this exact published size and configuration in the Velopedia Geometry Analyzer, then complete any measurements the manufacturer did not provide.
Analyze 54 geometry 56 geometry
Archive context: The chainstay of 445 mm sits toward the longer rear-center end. Its reach of 400 mm sits toward the longer end. The head angle of 69.5° sits toward the slacker end.
Compared with 24 distinct cyclocross/gravel geometries in the Large-equivalent size cohort from model years 2021–2023 in the Velopedia archive.Want to go deeper?Open this exact published size and configuration in the Velopedia Geometry Analyzer, then complete any measurements the manufacturer did not provide.
Analyze 56 geometry 58 geometry
Archive context: Its stack of 660 mm sits toward the taller end. The chainstay of 445 mm sits toward the longer rear-center end. The head angle of 69.5° sits toward the slacker end.
Compared with 24 distinct cyclocross/gravel geometries in the XL-equivalent size cohort from model years 2021–2023 in the Velopedia archive.Want to go deeper?Open this exact published size and configuration in the Velopedia Geometry Analyzer, then complete any measurements the manufacturer did not provide.
Analyze 58 geometry Parts & serviceability
Find replacement parts
SRAM PG1130 11-42t 11spd
Named component · published drivetrain speed — verify exact version
Maxxis Recon Race EXO TR 29x2.25"
Named tire and published size
WTB Volt
Named archived component — verify exact version
More qualified parts (5)
SRAM NX; Chainring: 36t X-Sync
Component family — verify exact version
SRAM Rival 1
Interpreted as SRAM Rival · 11-speed Named component · published drivetrain speed — verify exact version
Before ordering: Confirm whether the drivetrain is mechanical or electronic before ordering.
31.6 mm dropper post
Dropper post identified — verify travel, routing and insertion depth
FSA No.1/No.10
Exact archived model
WTB KOM Light Team i27 TCS 2.0
Named archived component — verify dimensions
Searches use the archived manufacturer specification, not the components currently installed on a particular bicycle. Confirm the exact model, size and fit before ordering. As an Amazon Associate I earn from qualifying purchases. Velopedia may also earn from qualifying eBay purchases. Velopedia may also earn from qualifying retailer purchases. Commercial relationships do not influence Archive specifications or analysis.
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 →- FrameCheck paint chips, vent holes and the inside of the seat tube for corrosion. Also look for dents, bent tubes and cracking around welded or brazed joints.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 11-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.Check wheels and tires →
Bike-specific inspection checklist 19 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: 2021 Kona Sutra ULTD · Cyclocross/Gravel · Published sizes: 48, 50, 52, 54, 56, 58
Frame and fork
Inspect the frame and fork →Archived: Frame: Kona Cromoly Butted · Fork: Kona Project Two Cromoly Disc Touring fork · Steel
Drivetrain
Check drivetrain wear →Archived: Shifters: SRAM Rival 1 w/ Integrated Dropper Lever · Rear derailleur: SRAM Rival 1 · Crankset: SRAM NX; Chainring: 36t X-Sync · Bottom bracket: SRAM 73mm · Cassette: SRAM PG1130 11-42t 11spd · Chain: SRAM PC1110
Brakes
Inspect the brakes →Archived: Brakes: Brake Calipers: SRAM Rival 1 Flat mount; Front Brake Rotor: SRAM Centerline 160mm; Rear Brake Rotor: SRAM Centerline 160mm; Brake Levers: SRAM Rival 1 HRD
Wheels and tires
Check wheels and tires →Archived: Wheel size: 29" · Rims: WTB KOM Light Team i27 TCS 2.0 · Hubs: (F) Formula 100x12mm / (R) Formula 142x12mm · Front tire: Maxxis Recon Race EXO TR 29x2.25" · Rear tire: Maxxis Recon Race EXO TR 29x2.25"
Controls and contact points
Archived: Headset: FSA No.1/No.10 · Handlebar: Kona Road · Stem: Kona Road Deluxe · Seatpost: TranzX Dropper +RAD Internal 31.6mm · Saddle: WTB Volt
Before and during the test ride
Follow the full used-bike inspection order →Build relationships are limited to the archived manufacturer specifications. Confirm exact fit and standards before ordering parts or performing service.
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Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.