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 2003 Kona Unit.
- Gearing
2003 Kona Unit has a 11% lower climbing ratio than 2002 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.
Ratio2.12:1
Estimated speed at 90 RPMGear
Uses front tire 26×1.9; rear size isn’t listed.
Ratio1.88:1
Estimated speed at 90 RPMGear
Uses front tire 26×1.9; 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
2002 Kona Unit
2003 Kona Unit
Overview
Model Year
2002
2003
Brand
Kona
Kona
Model
Unit
Unit
Bicycle Type
Mountain bike, non-suspension
Mountain bike, non-suspension
Original MSRP
$799.00
$799.00
Colors
Red
Orange
Sizes
16", 18", 19", 20", 21"
16", 18", 20"
Weight
—
—
Frameset
Frame Construction
TIG-welded
TIG-welded
Frame Material
True Temper OX Platinum
True Temper OX Platinum
Fork
Kona Project 2
Kona Project 2
Fork Material
Chromoly, unicrown crown
Unicrown
Drivetrain
Component Group
Single Speed Mountain Bike Mix
Mountain Mix
Crankset
Race Face Prodigy SS, 36 teeth
Race Face Prodigy XC Single Speed, 32 teeth
Bottom Bracket
Tien Hsin BB-9900 ISIS
TruVativ ISIS Team SL
Rear Cogs
1-speed, 17 teeth
1-speed, 17 teeth
Chain
KMC Z610HX, 1/2 X 3/32"
KMC Z610HX, 1/2 X 3/32"
Pedals
Shimano PD-M505 SPD
Shimano PD-M505 SPD
Brakes
Brakes
Avid Single Digit 5 brakes, Avid Speed Dial 5 levers
Avid Single Digit 7 brakes, Avid Speed Dial 5 levers
Cockpit & Contact Points
Headset
1 1/8" threadless Aheadset STS
1 1/8" threadless Aheadset STS
Handlebar
Koski XC Riser Bar
Koski riser
Handlebar Extensions
Not included
Not included
Stem
Koski Strong Hold XC
Koski Strong Hold XC
Saddle
SDG Satellite
SDG Satellite
Seatpost
Kona Clamp
Koski SportPost
Wheels & Tires
Hubs
Front: Shimano, Rear: Kona SS
Front: Shimano, Rear: KK single speed
Rims
Mavic X221
Mavic X221
Spokes
Stainless steel, 15ga. Front / 14ga. Rear straight gauge
Stainless steel, 14/15ga. (2.0/1.8mm) straight gauge
Spoke Nipples
Brass nipples
—
Front Tire
26 x 1.90" Tioga Factory SL
26 x 1.90" Tioga Red Phoenix
Wheel Size
26" wheels
26" wheels
Geometry · choose a size for each bicycle
Geometry size
—
Head-tube angle
71°
—
Seat-tube angle
74°
—
Chainstay / rear center
424.2 mm
—
Wheelbase
1066.8 mm
—
Fork offset / rake
38.1 mm
—
Historical specifications are presented as an archival reference. Components may have varied by market, size, or production run. Legacy reference geometry is model-level historical data whose corresponding frame size is not identified; compare those dimensions as reference values rather than size-normalized fit data.