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
1998 Jamis Comet has a 7% lower climbing ratio than 1999 Jamis Comet.
A lower ratio gives more mechanical advantage; rear-wheel rollout determines distance per crank turn.
- Identity & price
1999 Jamis Comet had an original MSRP $100 lower than 1998 Jamis Comet.
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.
Lowest1.70:1Highest4.42:1Total range260%
Estimated speed at 90 RPMLowest gearHighest gear
Uses front tire 700C×23; rear size isn’t listed.
Lowest1.83:1Highest4.73:1Total range259%
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
1998 Jamis Comet
1999 Jamis Comet
Overview
Model Year
1998
1999
Brand
Jamis
Jamis
Model
Comet
Comet
Bicycle Type
Road race & triathlon
Road race & triathlon
Original MSRP
$1,599.95
$1,499.95
Colors
Gloss White
Saffron Yellow
Sizes
49 cm, 51 cm, 53 cm, 55 cm, 57 cm, 59 cm, 61 cm
47cm, 49cm, 51cm, 53cm, 55cm, 57cm, 59cm, 61cm
Weight
—
21 lb
Frameset
Frame Construction
TIG-welded
TIG-welded
Frame Material
7005 aluminum, double-butted aero
7005 aluminum w/replaceable derailleur hanger
Fork
Kinesis Air Foil
Kinesis Air Foil
Fork Material
Aluminum, aero crown
Aluminum, aero crown
Drivetrain
Component Group
Shimano 600 Ultegra
Shimano Ultegra
Shifters
Shimano 600 Ultegra STI Dual Control
Shimano Ultegra STI Dual Control
Front Derailleur
Shimano 600 Ultegra, bottom-pull/clamp-on 28.6mm
Shimano Ultegra, bottom-pull/clamp-on 28.6mm
Rear Derailleur
Shimano 600 Ultegra SS
Shimano Ultegra SS
Crankset
Shimano 600 Ultegra, 39/53 teeth
Shimano Ultegra, 42/52 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, 12 - 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
Time Equipe Challenge Pro
Time Challenge Pro
Brakes
Brakes
Shimano 600 Ultegra Dual Pivot brakes, Shimano 600 Ultegra levers
Shimano Ultegra Dual Pivot brakes, Shimano Ultegra STI levers
Cockpit & Contact Points
Headset
1" Shimano 600 Ultegra
1" threadless Cane Creek C2
Handlebar
TTT Forma
TTT Forma
Stem
Syncros Altura
Ttt
Saddle
SDG Ventura Comp, titanium rails
SDG Comp Belair, titanium rails
Seatpost
Thomson Elite, 27.0mm diameter
Thomson Setback, 27.2mm diameter
Wheels & Tires
Hubs
Shimano 600 Ultegra
Shimano Ultegra
Rims
Mavic CXP 30, 28-hole/32-hole
Mavic CXP 33, 32-hole
Spokes
Wheelsmith stainless steel, 2.0mm double-butted
Wheelsmith stainless steel, 1.8mm double-butted
Spoke Nipples
Alloy nipples
Alloy nipples
Front Tire
700 x 23c Continental Grand Prix kevlar
700 x 23c Hutchinson Krono
Wheel Size
700c wheels
700c wheels
Geometry · choose a size for each bicycle
Geometry size
Head-tube angle
73°
73°
Seat-tube angle
73.5°
73.3°
Chainstay / rear center
410 mm
410 mm
Wheelbase
989 mm
988 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.