
Velopedia Bicycle Archive
2021 Kona El Kahuna
Original manufacturer specifications including 29" wheels, geometry for 4 published sizes.
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What Velopedia knows
- Model year
- 2021
- Category
- Mountain
- Original MSRP
- $2,999.00
- Sizes
- S, M, L, XL
- Colors
- Gloss Metallic Black w/ Charcoal & Metallic Silver Decals
- Geometry
- 4 manufacturer sizes · Geometry context
- Record coverage
- 24 preserved details · archived image · original MSRP · preserved geometry
- Archive ID
- 900002007
Frameset
| Frame Construction | Kona 6061 Aluminum Butted |
|---|---|
| Frame Material | Aluminum |
| Fork | Suntour XCR34 Air 100mm Tapered 110 Spacing |
| Rear Shock | n/a |
Drivetrain
| Shifters | Shimano Deore |
|---|---|
| Front Derailleur | n/a |
| Rear Derailleur | Shimano Deore |
| Crankset | FSA E-Bike; Chainring: 36t |
| Bottom Bracket | n/a |
| Cassette | Shimano Deore 11-46t 10spd |
| Chain | Shimano HG54 |
| Pedals | n/a |
Brakes
| Brakes | Brake Calipers: Shimano MT-410; Front Brake Rotor: Shimano RT10 180mm (centerlock); Rear Brake Rotor: Shimano RT10 160mm (centerlock); Brake Levers: Shimano MT-401 |
|---|
Cockpit & Contact Points
| Headset | FSA no.57BP |
|---|---|
| Handlebar | Kona XC/BC Riser |
| Stem | Kona XC |
| Saddle | WTB Volt |
| Seatpost | Kona Thumb w/Offset 31.6mm |
Wheels & Tires
| Hubs | (F) Shimano 110x15mm / (R) Shimano 135x10mm |
|---|---|
| Rims | WTB ST I27 TCS 2.0 |
| Spokes | Stainless 14g |
| Front Tire | WTB Trail Boss 29x2.25" |
| Rear Tire | WTB Trail Boss 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 | S | M | L | XL |
|---|---|---|---|---|
| Seat tube | 370 mm | 420 mm | 470 mm | 530 mm |
| Top tube | 581 mm | 607 mm | 633 mm | 665 mm |
| Head tube | 110 mm | 115 mm | 120 mm | 125 mm |
| Head-tube angle | 69° | 69° | 69° | 69° |
| Seat-tube angle | 74° | 74° | 74° | 74° |
| Chainstay / rear center | 465 mm | 465 mm | 465 mm | 465 mm |
| Wheelbase | 1134 mm | 1160 mm | 1187 mm | 1220 mm |
| Bottom-bracket drop | 60 mm | 60 mm | 60 mm | 60 mm |
| Bottom-bracket height | 315 mm | 315 mm | 315 mm | 315 mm |
| Reach | 404 mm | 428 mm | 453 mm | 484 mm |
| Stack | 619 mm | 623 mm | 628 mm | 633 mm |
| Standover height | 738 mm | 742 mm | 747 mm | 766 mm |
| Fork offset / rake | 51 mm | 51 mm | 51 mm | 51 mm |
| Front center | 676 mm | 701 mm | 728 mm | 761 mm |
| Fork length / axle-to-crown | 506 mm | 506 mm | 506 mm | 506 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
S geometry
Archive context: Its bottom-bracket drop of 60 mm sits somewhat deeper than typical. The seat angle of 74° sits somewhat more relaxed than typical. Its wheelbase of 1134 mm sits somewhat shorter than typical.
Compared with 27 distinct electric-assist geometries in the Small-equivalent size cohort from model years 2021–2023 in the Velopedia archive.M geometry
Archive context: Its bottom-bracket drop of 60 mm sits somewhat deeper than typical. The head angle of 69° sits somewhat steeper than typical. The chainstay of 465 mm sits somewhat longer than typical.
Compared with 25 distinct electric-assist geometries in the Medium-equivalent size cohort from model years 2021–2023 in the Velopedia archive.L geometry
Archive context: Its stack of 628 mm sits somewhat lower than typical. The chainstay of 465 mm sits somewhat longer than typical. Its bottom-bracket drop of 60 mm sits somewhat deeper than typical.
Compared with 27 distinct electric-assist geometries in the Large-equivalent size cohort from model years 2021–2023 in the Velopedia archive.XL geometry
Archive context: Its stack of 633 mm sits toward the lower end. Its bottom-bracket drop of 60 mm sits somewhat deeper than typical. The chainstay of 465 mm sits somewhat longer than typical.
Compared with 20 distinct electric-assist geometries in the XL-equivalent size cohort from model years 2021–2023 in the Velopedia archive.Parts & serviceability
Find replacement parts
More qualified parts (6)
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 →- FrameLook closely for dents and hairline cracks around welds, the head tube and bottom-bracket area. Cosmetic scratches matter less than a change in shape or a crack line.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 →
- E-bike systemConfirm the main battery charges with the correct charger, locks securely into its mount and has no case damage, swelling, corrosion or overheating marks. Power the bike on from cold, test every assist mode and ask for available battery-health and diagnostic records.Check the battery and electronics →
- SuspensionAsk when the fork was last serviced. Check the stanchions for damage, look for oil at the seals and make sure the fork moves smoothly without bushing play.Evaluate the suspension →
- 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 24 checks based on 7 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 El Kahuna · Electric-assist · Published sizes: S, M, L, XL
Frame and fork
Inspect the frame and fork →Archived: Frame: Kona 6061 Aluminum Butted · Fork: Suntour XCR34 Air 100mm Tapered 110 Spacing
Suspension
Evaluate the suspension →Archived: Fork: Suntour XCR34 Air 100mm Tapered 110 Spacing
Drivetrain
Check drivetrain wear →Archived: Shifters: Shimano Deore · Rear derailleur: Shimano Deore · Crankset: FSA E-Bike; Chainring: 36t · Cassette: Shimano Deore 11-46t 10spd · Chain: Shimano HG54
Brakes
Inspect the brakes →Archived: Brakes: Brake Calipers: Shimano MT-410; Front Brake Rotor: Shimano RT10 180mm (centerlock); Rear Brake Rotor: Shimano RT10 160mm (centerlock); Brake Levers: Shimano MT-401
Wheels and tires
Check wheels and tires →Archived: Wheel size: 29" · Rims: WTB ST i27 TCS 2.0 · Hubs: (F) Shimano 110x15mm / (R) Shimano 135x10mm · Front tire: WTB Trail Boss 29x2.25" · Rear tire: WTB Trail Boss 29x2.25"
Controls and contact points
Archived: Headset: FSA No.57BP · Handlebar: Kona XC/BC Riser · Stem: Kona XC · Seatpost: Kona Thumb w/Offset 31.6mm · Saddle: WTB Volt
E-bike system
Check the battery and electronics →Archived: Kona El Kahuna · electric-assist identification
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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Current market
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Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.




