Velopedia Bicycle Archive

2021 Kona 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
$1,399.00
Sizes
S, M, L, XL
Colors
Gloss Metallic Alpine Blue w/ Metallic Silver & Black Decals
Geometry
4 manufacturer sizes · Geometry context
Record coverage
24 preserved details · archived image · original MSRP · preserved geometry
Archive ID
900001987
Model history 7 other years
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Manufacturer catalog

Published sizes and colors

4 sizes · 1 color

Manufacturer-published sizes and colors; availability and exact size/color pairings may vary by market or production run.

Published sizes

SMLXL

Published colors

Gloss Metallic Alpine Blue w/ Metallic Silver & Black Decals

Frameset

Frame ConstructionKona Race Light 6061 Aluminum Butted
Frame MaterialAluminum
ForkRockShox Recon Silver RL Solo Air 100mm Tapered 110mm Spacing
Rear Shockn/a

Drivetrain

ShiftersShimano Deore 12 spd
Front Derailleurn/a
Rear DerailleurShimano Deore 12 spd
CranksetShimano Deore 12spd; Chainring: 32t
Bottom BracketShimano 73mm
CassetteShimano Deore 10-51t 12spd
ChainShimano Deore 12spd
PedalsKona JS2

Brakes

BrakesBrake Calipers: Shimano MT401 Hydraulic; Front Brake Rotor: Shimano RT10 180mm; Rear Brake Rotor: Shimano RT10 160mm; Brake Levers: Shimano MT401 Hydraulic

Cockpit & Contact Points

HeadsetFSA No.57B
HandlebarKona XC/BC Riser
StemKona XC
SaddleWTB Volt
SeatpostKona Thumb w/Offset 31.6mm

Wheels & Tires

Hubs(F) Shimano 110x15mm / (R) Shimano 135x10mm
RimsWTB ST I27 TCS 2.0
SpokesStainless Black 14g
Front TireMaxxis Forekaster 29x2.35"
Rear TireMaxxis Forekaster 29x2.35"
Wheel Size29"

Size-specific frame data

Geometry

4 sizes · 15 measurements

Manufacturer-published geometry normalized for consistent archival comparison. Effective top tube and reach remain separate measurements because they describe different aspects of fit.

MeasurementSMLXL
Seat tube370 mm420 mm470 mm530 mm
Top tube576 mm604 mm631 mm669 mm
Head tube95 mm105 mm115 mm125 mm
Head-tube angle68°68°68°68°
Seat-tube angle75°75°75°75°
Chainstay / rear center450 mm450 mm450 mm450 mm
Wheelbase1135 mm1164 mm1192 mm1231 mm
Bottom-bracket drop60 mm60 mm60 mm60 mm
Bottom-bracket height315 mm315 mm315 mm315 mm
Reach415 mm440 mm465 mm500 mm
Stack602 mm611 mm620 mm629 mm
Standover height727 mm733 mm738 mm760 mm
Fork offset / rake51 mm51 mm51 mm51 mm
Front center691 mm720 mm749 mm787 mm
Fork length / axle-to-crown506 mm506 mm506 mm506 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

Choose a size

S geometry

Archive context: The chainstay of 450 mm sits toward the longer rear-center end. Its bottom-bracket drop of 60 mm sits toward the deeper-drop end. The head angle of 68° sits somewhat steeper than typical.

Compared with 86 distinct mountain geometries in the Small-equivalent size cohort from model years 2019–2023 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 S geometry

Parts & serviceability

Find replacement parts

3 top part searches
ChainMatching configuration
Shimano Deore 12spd Interpreted as Shimano Deore · 12-speed Component family — verify exact version
CassetteMatching configuration
Shimano Deore 10-51t 12spd Interpreted as Shimano Deore · 12-speed Component family — verify exact version
Front tireMatching fit standard
Maxxis Forekaster 29x2.35" Named tire and published size
More qualified parts (6)
SaddleQualified part search
WTB Volt Named archived component — verify exact version
CranksetQualified part search
Shimano Deore 12spd; Chainring: 32t Component family — verify exact version
Rear derailleurMatching configuration
Shimano Deore 12 spd Interpreted as Shimano Deore · 12-speed Component family — verify exact version
ShiftersQualified part search
Shimano Deore 12 spd Interpreted as Shimano Deore · 12-speed Component family — verify exact version
HeadsetExact archived part
FSA No.57B Exact archived model
RimsQualified part search
WTB ST 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.

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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 →
  • 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 →
  • 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.Check wheels and tires →
Bike-specific inspection checklist 20 checks based on 6 archived component groups Open checklistClose checklist
0 of 20 checked Progress stays in this browser for this bike.

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.

Archived: 2021 Kona Kahuna · Mountain · Published sizes: S, M, L, XL

Archived: Frame: Kona Race Light 6061 Aluminum Butted · Fork: RockShox Recon Silver RL Solo Air 100mm Tapered 110mm Spacing

Archived: Fork: RockShox Recon Silver RL Solo Air 100mm Tapered 110mm Spacing

Archived: Shifters: Shimano Deore 12 spd · Rear derailleur: Shimano Deore 12 spd · Crankset: Shimano Deore 12spd; Chainring: 32t · Bottom bracket: Shimano 73mm · Cassette: Shimano Deore 10-51t 12spd · Chain: Shimano Deore 12spd

Archived: Brakes: Brake Calipers: Shimano MT401 Hydraulic; Front Brake Rotor: Shimano RT10 180mm; Rear Brake Rotor: Shimano RT10 160mm; Brake Levers: Shimano MT401 Hydraulic

Archived: Wheel size: 29" · Rims: WTB ST i27 TCS 2.0 · Hubs: (F) Shimano 110x15mm / (R) Shimano 135x10mm · Front tire: Maxxis Forekaster 29x2.35" · Rear tire: Maxxis Forekaster 29x2.35"

Controls and contact points

Archived: Headset: FSA No.57B · Handlebar: Kona XC/BC Riser · Stem: Kona XC · Seatpost: Kona Thumb w/Offset 31.6mm · Saddle: WTB Volt · Pedals: Kona JS2

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.

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