Rear tire: 29×2.25.
Velopedia Bicycle Archive
2021 Kona Sutra ULTD
Original specifications: 29" wheels · geometry for 6 published sizes.
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At a glance
Archive #900002020- 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
- In this record
- 22 specifications · archived image · original MSRP · geometry
Original buildSteel · 29"
Frameset
| Frame Construction | Kona Cromoly Butted |
|---|---|
| Frame Material | Steel |
| Fork | Kona Project Two Cromoly Disc Touring fork |
| Fork Material | Steel |
Drivetrain
| 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
| 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" |
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Geometry
Frame measurements by size.
Frame diagram
Select an available measurement to locate it on the frame.
All geometry measurements6 sizes · 15 measurements
| 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 |
Dimensions as recorded.
Gearing
Lower gears help on climbs. Higher gears suit higher speeds.
RPM = pedal turns per minute.
How it works
Ratio = front teeth ÷ rear teeth. Hub gears also include the hub’s internal ratio. A 400% range means the highest ratio is four times the lowest.
Speeds are estimates from tire size and pedal cadence. Actual speeds vary.
Try your current gearingChanged tires or gears? Calculate your setup.
Your changes apply to this calculation. The archived build stays unchanged.
Gearing results
| Measure | Original | Your setup |
|---|---|---|
| Lowest ratio | — | — |
| Highest ratio | — | — |
| Total range | — | — |
| Lowest-gear speed | — | — |
| Highest-gear speed | — | — |
Speeds are estimates. These calculations do not establish component compatibility or available tire clearance.
Parts & serviceability
Find replacement parts

SRAM PC-1110 Chain One Color, 114 Links/11 Speed
Model match

SRAM NX PG-1130 11-Speed Cassette One Color, 11-42t
Model match

Maxxis Rekon Race Dual Compound/EXO/TR 29in Tire Tanwall/Dual Compound/EXO, 29x2.25
Replacement option
More parts (7)Fewer parts
Chainring: 36t X-Sync
Based on the original build. Check fit and installed parts before ordering. Affiliate links may earn Velopedia a commission. As an Amazon Associate I earn from qualifying purchases.
Service essentialsQuick reference before buying parts
Archived specifications for reference. Check the fitted parts before ordering.
- Front tire
- Maxxis Recon Race EXO TR 29x2.25"Check: Verify the fitted tire’s size marking and rim type.
- Rear tire
- Maxxis Recon Race EXO TR 29x2.25"Check: Verify the rear size; it may differ from the front.
- Drivetrain
- 11-speedCheck: Match the installed drivetrain family, not just its speed count.
- Seatpost diameter
- 31.6 mmCheck: Read the post’s diameter marking; seat-clamp size differs.
- Bottom bracket / shell
- SRAM 73mmCheck: Verify shell type and width, crank interface, and spindle length or spacers.
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
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Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.





