Rear tire: 29×2.35.
Velopedia Bicycle Archive
2021 Kona Kahuna
Original specifications: 29" wheels · geometry for 4 published sizes.
Planning to sell? Draft your listing
At a glance
Archive #900001987- 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
- In this record
- 22 specifications · archived image · original MSRP · geometry
Model history 12 other years
Browse other years
Compare side by side
Identification clues
2021 archived details
- Published colors
- Gloss Metallic Alpine Blue w/ Metallic Silver & Black Decals
- Frame
- Aluminum
Clues, not proof of model year. Colors vary and components may have been replaced.
Original buildAluminum · 29"
Frameset
| Frame Construction | Kona Race Light 6061 Aluminum Butted |
|---|---|
| Frame Material | Aluminum |
| Fork | RockShox Recon Silver RL Solo Air 100mm Tapered 110mm Spacing |
Drivetrain
| 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 |
| Pedals | Kona JS2 |
Brakes
| Brakes | Brake Calipers: Shimano MT401 Hydraulic; Front Brake Rotor: Shimano RT10 180mm; Rear Brake Rotor: Shimano RT10 160mm; Brake Levers: Shimano MT401 Hydraulic |
|---|
Cockpit & Contact Points
| Headset | FSA No.57B |
|---|---|
| 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 Black 14g |
| Front Tire | Maxxis Forekaster 29x2.35" |
| Rear Tire | Maxxis Forekaster 29x2.35" |
| Wheel Size | 29" |
No specifications match. Try a component name or clear your search.
Geometry
Frame measurements by size.
Frame diagram
Select an available measurement to locate it on the frame.
All geometry measurements4 sizes · 15 measurements
| Measurement | S | M | L | XL |
|---|---|---|---|---|
| Seat tube | 370 mm | 420 mm | 470 mm | 530 mm |
| Top tube | 576 mm | 604 mm | 631 mm | 669 mm |
| Head tube | 95 mm | 105 mm | 115 mm | 125 mm |
| Head-tube angle | 68° | 68° | 68° | 68° |
| Seat-tube angle | 75° | 75° | 75° | 75° |
| Chainstay / rear center | 450 mm | 450 mm | 450 mm | 450 mm |
| Wheelbase | 1135 mm | 1164 mm | 1192 mm | 1231 mm |
| Bottom-bracket drop | 60 mm | 60 mm | 60 mm | 60 mm |
| Bottom-bracket height | 315 mm | 315 mm | 315 mm | 315 mm |
| Reach | 415 mm | 440 mm | 465 mm | 500 mm |
| Stack | 602 mm | 611 mm | 620 mm | 629 mm |
| Standover height | 727 mm | 733 mm | 738 mm | 760 mm |
| Fork offset / rake | 51 mm | 51 mm | 51 mm | 51 mm |
| Front center | 691 mm | 720 mm | 749 mm | 787 mm |
| Fork length / axle-to-crown | 506 mm | 506 mm | 506 mm | 506 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

Shimano Deore CN-M6100 Chain Silver, 12 Speed, 126 Links
Specification match

Shimano Deore CS-M6200 12-Speed Cassette Black, 10-51t, HG
Specification match
Other replacement options (1)

Shimano Deore CS-M7200 12-Speed Cassette Black, 10-51t, HG
Specification match

Maxxis Rekon Race Dual Compound/EXO/TR 29in Tire Black/Tan, Dual Compound/EXO/TR, 29x2.35
Replacement option
Other replacement options (1)

Specialized Ground Control Grid Lite T5/T7 TLR Tire Black, 29x2.35
Replacement option
More parts (6)Fewer parts

Shimano Deore RD-M7200 Rear Derailleur Max 51t, Min 10t, 12-Speed
Specification match
Chainring: 32t
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 Forekaster 29x2.35"Check: Verify the fitted tire’s size marking and rim type.
- Rear tire
- Maxxis Forekaster 29x2.35"Check: Verify the rear size; it may differ from the front.
- Drivetrain
- 12-speedCheck: Match the installed drivetrain family, not just its speed count.
- Bottom bracket / shell
- Shimano 73mmCheck: Verify shell type and width, crank interface, and spindle length or spacers.
Not confirmed in this record: Seatpost diameter. Check the fitted parts for these details.
Bike-specific inspection checklist 20 checks based on 6 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 Kahuna · Mountain · Published sizes: S, M, L, XL
Frame and fork
Inspect the frame and fork →Archived: Frame: Kona Race Light 6061 Aluminum Butted · Fork: RockShox Recon Silver RL Solo Air 100mm Tapered 110mm Spacing
Suspension
Evaluate the suspension →Archived: Fork: RockShox Recon Silver RL Solo Air 100mm Tapered 110mm Spacing
Drivetrain
Check drivetrain wear →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
Brakes
Inspect the brakes →Archived: Brakes: Brake Calipers: Shimano MT401 Hydraulic; Front Brake Rotor: Shimano RT10 180mm; Rear Brake Rotor: Shimano RT10 160mm; Brake Levers: Shimano MT401 Hydraulic
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: 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 →Have you owned this model?Help preserve its real-world history by sharing your owner experience.
Share the details that would help another rider understand how this model fits, rides and holds up over time. Velopedia reviews every contribution before publication.
Already contributed? Send me a fresh private edit link
For privacy, Velopedia shows the same confirmation whether or not an experience exists.
Checking current listings…
Find this bike on eBay
Search eBay US; check the model year, size and installed components. We may earn a commission from purchases.
Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.





