Ratio1.78:1
Estimated speed At 90 RPM
Gear
Uses front tire 29×2.1; rear size isn’t listed.
Velopedia Bicycle Archive
2008 Kona Unit 2-9
Original specifications: Single Speed Mix drivetrain · 29" wheels.
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At a glance
Archive #13251- Model year
- 2008
- Category
- Mountain
- Original MSRP
- $899.00
- Sizes
- 16", 18", 19", 20", 22"
- Colors
- Orange
- In this record
- 23 specifications · archived image · original MSRP
Model history 1 other year
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Identification clues
2008 archived details
- Published colors
- Orange
- Frame
- Dedacciai COM 12.5 Butted Cromoly
- Original equipment
- Single Speed Mix
Clues, not proof of model year. Colors vary and components may have been replaced.
Original buildDedacciai COM 12.5 Butted Cromoly · Single Speed Mix · 29" wheels
Frameset
| Frame Construction | TIG-welded |
|---|---|
| Frame Material | Dedacciai COM 12.5 Butted Cromoly |
| Fork | Kona P2 29er Disc |
| Fork Material | Unicrown |
Drivetrain
| Component Group | Single Speed Mix |
|---|---|
| Crankset | FSA V-Drive Mega EXO SS, 32 teeth |
| Bottom Bracket | FSA Mega EXO |
| Cassette | Shimano |
| Rear Cogs | 1-speed, 18 teeth |
| Chain | KMC Z610 |
| Pedals | Shimano PD-M505 |
Brakes
| Brakes | Avid BB-7 disc brakes, Avid FR-5 front/Avid FR- 5 rear levers |
|---|
Cockpit & Contact Points
| Headset | Th |
|---|---|
| Handlebar | FSA XC-282A OS |
| Handlebar Extensions | Not included |
| Stem | FSA OS-190LX |
| Saddle | WTB Laser V Comp |
| Seatpost | FSA FR-270 |
Wheels & Tires
| Hubs | KK Disc |
|---|---|
| Rims | Sun EQ 2.3 29er |
| Spokes | DT Swiss stainless steel, 14ga. (2.0mm) |
| Front Tire | 29 x 2.10" Maxxis Ignitor |
| Wheel Size | 29" wheels |
No specifications match. Try a component name or clear your search.
Gearing
Lower gears help on climbs. Higher gears suit higher speeds.
RPM
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
29 x 2.10" Maxxis Ignitor
Retailer offers
Schwalbe RapidRob Performance 29in Tire Black, Clincher/Wire, 29x2.1
Replacement option
Maxxis Ignitor on eBaySponsored links
FSA Mega EXO
Shimano PD-M505
More parts (5)Fewer parts
WTB Laser V Comp
FSA V-Drive Mega EXO SS
32 teeth
FSA XC-282A OS
FSA OS-190LX
FSA FR-270
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.
Parts and service referenceQuick reference before buying parts
Archived specifications for reference. Check the fitted parts before ordering.
- Front tire
- 29 x 2.10" Maxxis Ignitor
- Drivetrain
- 1-speed
- Bottom bracket / shell
- FSA Mega EXO
Equipment inspection checks 12 checks based on 6 archived component groups Open equipment checksClose equipment checks
Checks selected from the archived equipment. Confirm what is fitted today. This is not a complete safety inspection; use the full inspection guide before test riding.
Full used-bike inspection guide →
Frame and fork
Inspect the frame and fork →Archived: Frame: TIG-welded · Fork: Kona P2 29er Disc · Unicrown
Suspension
Evaluate the suspension →Archived: Fork: Kona P2 29er Disc
Drivetrain
Check drivetrain wear →Archived: Group: Single Speed Mix · Crankset: FSA V-Drive Mega EXO SS, 32 teeth · Bottom bracket: FSA Mega EXO · Cassette: Shimano · Rear cogs: 1-speed, 18 teeth · Chain: KMC Z610
Brakes
Inspect the brakes →Archived: Brakes: Avid BB-7 disc brakes, Avid FR-5 front/Avid FR- 5 rear levers
Wheels and tires
Check wheels and tires →Archived: Wheel size: 29" wheels · Rims: Sun EQ 2.3 29er · Hubs: KK Disc · Front tire: 29 x 2.10" Maxxis Ignitor
Controls and contact points
Archived: Headset: TH · Handlebar: FSA XC-282A OS · Stem: FSA OS-190LX · Seatpost: FSA FR-270 · Saddle: WTB Laser V Comp · Pedals: Shimano PD-M505
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Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.