Velopedia Bicycle Archive
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Compare published geometry, gearing and specifications for up to three bicycles.
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1 of 2 bicycles
At a glance
Key differences
Supported differences are shown below. Data limitations are labeled separately.
- Data limitation
No geometry is recorded for 2008 Kona Unit 2-9 and 2007 Kona Unit 2-9.
- Gearing
2008 Kona Unit 2-9 has a 6% lower climbing ratio than 2007 Kona Unit 2-9.
A lower ratio gives more mechanical advantage; rear-wheel rollout determines distance per crank turn.
- Identity & price
2008 Kona Unit 2-9 had an original MSRP $100 lower than 2007 Kona Unit 2-9.
Original MSRP is the published list price when new, not today’s used-bike value.
Gearing comparison
Lower gears help on climbs. Higher gears suit higher speeds.
RPM
RPM = pedal turns per minute.
Ratio1.78:1
Estimated speed at 90 RPMGear
Uses front tire 29×2.1; rear size isn’t listed.
Ratio1.89:1
Estimated speed at 90 RPMGear
Uses front tire 29×2.1; rear size isn’t listed.
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.
Complete specification tableShows different published values and gaps where a bicycle lacks data. Different wording reflects source language, not necessarily different components. Swipe for more columns.
Specification
2008 Kona Unit 2-9
2007 Kona Unit 2-9
Overview
Model Year
2008
2007
Brand
Kona
Kona
Model
Unit 2-9
Unit 2-9
Bicycle Type
Mountain bike, front suspension
Mountain bike, non-suspension
Original MSRP
$899.00
$999.00
Colors
Orange
Purple
Sizes
16", 18", 19", 20", 22"
16", 18", 19", 20", 22"
Weight
—
—
Frameset
Frame Construction
TIG-welded
TIG-welded
Frame Material
Dedacciai COM 12.5 Butted Cromoly
Dedacciai COM Butted Cromoly
Fork
Kona P2 29er Disc
Kona Project Two 29er Disc
Fork Material
Unicrown
Steel, unicrown crown
Drivetrain
Component Group
Single Speed Mix
Single Speed Mix
Crankset
FSA V-Drive Mega EXO SS, 32 teeth
FSA V-Drive Mega EXO SS, 34 teeth
Bottom Bracket
FSA Mega EXO
FSA Mega EXO
Cassette
Shimano
—
Rear Cogs
1-speed, 18 teeth
1-speed, 18 teeth
Chain
KMC Z610
KMC Z610, 1/2 x 3/32"
Pedals
Shimano PD-M505
Shimano PD-M505 Clipless
Brakes
Brakes
Avid BB-7 disc brakes, Avid FR-5 front/Avid FR- 5 rear levers
Avid BB-7 disc front/Avid BB-7 disc rear brakes, Avid FR-5 levers
Cockpit & Contact Points
Headset
Th
1 1/8" threadless TH
Handlebar
FSA XC-282A OS
Easton EA30 OS
Handlebar Extensions
Not included
Not included
Stem
FSA OS-190LX
Easton EA30 OS
Saddle
WTB Laser V Comp
WTB Laser V Comp
Seatpost
FSA FR-270
Easton EA30
Wheels & Tires
Hubs
KK Disc
Front: KK Disc, Rear: KK Single Speed Disc
Rims
Sun EQ 2.3 29er
Sun CR-18
Spokes
DT Swiss stainless steel, 14ga. (2.0mm)
DT Swiss stainless steel, 14ga. (2.0mm)
Front Tire
29 x 2.10" Maxxis Ignitor
29 x 2.10" Maxxis Ignitor 29x2.1
Wheel Size
29" wheels
29" wheels
Historical specifications are presented as an archival reference. Components may have varied by market, size, or production run.