Velopedia Bicycle Archive
Compare Bicycles
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.
- Gearing
2003 Jamis Comet has a 23% lower climbing ratio than 2002 Jamis Comet.
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.
Lowest1.30:1Highest4.73:1Total range362%
Estimated speed at 90 RPMLowest gearHighest gear
Uses front tire 700C×23; rear size isn’t listed.
Lowest1.70:1Highest4.82:1Total range284%
Estimated speed at 90 RPMLowest gearHighest gear
Uses front tire 700C×23; 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
2003 Jamis Comet
2002 Jamis Comet
Overview
Model Year
2003
2002
Brand
Jamis
Jamis
Model
Comet
Comet
Bicycle Type
Road race & triathlon
Road race & triathlon
Original MSRP
$1,849.95
$1,799.95
Colors
Gloss White/Graphite
Black
Sizes
XS, S, M, L, XL
47cm (26" wheel), 49cm, 51cm, 53cm, 55cm, 57cm, 59cm, 61cm
Weight
17.5 lb
18 lb
Frameset
Frame Construction
TIG-welded
Brazed/welded
Frame Material
Aluminum, carbon fiber seat stays
7005 aluminum, double-butted
Fork
Reynolds Ouzo Comp
Reynolds Ouzo Comp
Fork Material
Carbon fiber composite w/carbon fiber steerer, aero crown
Carbon fiber composite, aero crown
Drivetrain
Component Group
Shimano Ultegra Triple
Road Mix
Shifters
Shimano Ultegra STI Dual Control
Shimano Ultegra STI Dual Control
Front Derailleur
Shimano Ultegra Triple, bottom-pull/clamp-on 31.8mm
Shimano Ultegra, bottom-pull/clamp-on 31.8mm
Rear Derailleur
Shimano Ultegra GS
Shimano Ultegra SS
Crankset
Shimano Ultegra Triple, 30/42/52 teeth
Shimano Ultegra, 39/53 teeth
Bottom Bracket
Shimano BB-6500, 118.5mm spindle
Shimano BB-6500, 109.5mm spindle
BB Shell Width
68mm English
68mm English
Rear Cogs
9-speed, 11 - 23 teeth
9-speed, 11 - 23 teeth
Chain
Shimano CN-HG92, 1/2 x 3/32"
Shimano CN-HG92, 1/2 x 3/32"
Pedals
Not included
Not included
Brakes
Brakes
Shimano Ultegra Dual Pivot brakes, Shimano Ultegra STI Dual Control levers
Shimano Ultegra Dual Pivot brakes, Shimano Ultegra STI Dual Control levers
Cockpit & Contact Points
Headset
1 1/8" threadless Cane Creek ZS-2
1 1/8" threadless Cane Creek S-2
Handlebar
3T Forgie
3T Forgie Bar
Handlebar Extensions
Not included
Not included
Stem
3T Forgie
3T Forgie
Saddle
Fi'zi:k Pave, titanium rails
Selle Italia XO
Seatpost
Carbon fiber, micro-adjust, 27.2mm diameter
Carbon fiber, aero, 27.2mm diameter
Wheels & Tires
Hubs
Mavic Ksyrium Elite
Mavic Ksyrium
Rims
Mavic Ksyrium Elite, 18-hole/20-hole
Mavic Ksyrium Elite, 18-hole/20-hole
Spokes
Mavic stainless steel, aero
Mavic Zicral, aero
Spoke Nipples
Brass nipples
Aluminum nipples
Front Tire
700 x 23c Hutchinson Carbon Comp
700 x 23c Hutchinson Carbon Comp
Wheel Size
700c wheels
700c wheels
Geometry · choose a size for each bicycle
Geometry size
Head-tube angle
73°
73°
Seat-tube angle
74.5°
73.5°
Chainstay / rear center
410 mm
410 mm
Wheelbase
988 mm
988 mm
Fork offset / rake
42 mm
41.9 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.