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 2009 Kona Unit and 2007 Kona Unit.
- Gearing
2009 Kona Unit has a 11% lower climbing ratio than 2007 Kona Unit.
A lower ratio gives more mechanical advantage; rear-wheel rollout determines distance per crank turn.
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.
Ratio2.00:1
Estimated speed at 90 RPMGear
Uses front tire 26×2.1; 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
2009 Kona Unit
2007 Kona Unit
Overview
Model Year
2009
2007
Brand
Kona
Kona
Model
Unit
Unit
Bicycle Type
Mountain bike, front suspension
Mountain bike, non-suspension
Original MSRP
$849.00
$899.00
Colors
Black Metallic
Black
Sizes
16", 18", 19", 20", 22"
16", 18", 19", 20"
Weight
—
—
Frameset
Frame Construction
TIG-welded
TIG-welded
Frame Material
Kona Chromoly Butted
Dedacciai COM Butted Cromoly
Fork
Kona P2 29er Disc
Kona Project Two Disc
Fork Material
Unicrown
Steel, unicrown crown
Drivetrain
Component Group
Single Speed Mix
Single Speed Mix
Crankset
FSA V-Drive SS, 32 teeth
Race Face Ride ISIS, 34 teeth
Bottom Bracket
FSA Mega EXO
Race Face SRX ISIS
BB Shell Width
73mm
—
Cassette
Formula Sprocket
—
Rear Cogs
1-speed, 18 teeth
1-speed, 17 teeth
Chain
KMC Z610
KMC Z610, 1/2 x 3/32"
Pedals
Kona Jackshit Deluxe
Shimano PD-M505 Clipless
Brakes
Brakes
Avid BB 5 Mechanical brakes, Avid FR-5 levers
Avid Single Digit 5 brakes, Avid Single Digit 5 levers
Cockpit & Contact Points
Headset
1 1/8" TH
1 1/8" threadless TH
Handlebar
Kona XC/BC
Easton EA30 OS
Handlebar Extensions
Not included
Not included
Stem
Kona XC/BC
Easton EA30 OS
Saddle
WTB Rocket V Comp
WTB Laser V Comp
Seatpost
Kona XC/BC
Easton EA30
Wheels & Tires
Hubs
Formula disc
Front: KK Disc, Rear: KK Single Speed Disc
Rims
Mavic TN 719
Sun Mach 4
Spokes
Sandvic stainless, 15ga. (1.8mm)
Stainless steel, 14/15ga. (2.0/1.8mm)
Front Tire
29 x 2.10" Maxxis Ignitor
26 x 2.10" Maxxis Ignitor
Wheel Size
29" wheels
26" wheels
Historical specifications are presented as an archival reference. Components may have varied by market, size, or production run.