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.
- Data limitation
No geometry is recorded for 2011 Jamis Comet and 2009 Jamis Comet.
- Identity & price
2009 Jamis Comet had an original MSRP $100 lower than 2011 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.
Lowest1.56:1Highest4.82:1Total range309%
Estimated speed at 90 RPMLowest gearHighest gear
Uses front tire 700C×23; rear size isn’t listed.
Lowest1.56:1Highest4.82:1Total range309%
Speed unavailable: wheel or tire size is missing or unclear.
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
2011 Jamis Comet
2009 Jamis Comet
Overview
Model Year
2011
2009
Brand
Jamis
Jamis
Model
Comet
Comet
Bicycle Type
Road race & triathlon
Road race & triathlon
Original MSRP
$1,700.00
$1,600.00
Colors
Pearl white/monterey red
Team Red/Gloss Black
Sizes
47 (650C), 51, 54, 56, 58, 61cm
47cm, 51cm, 54cm, 56cm, 58cm, 61cm
Weight
19.75 lbs
20.7 lb
Frameset
Frame Construction
Aluminum
TIG-welded
Frame Material
Aero 7005 butted aluminum
7005 triple butted aluminum
Fork
Windshield Aero
—
Fork Material
Carbon
Carbon fiber/chromoly steerer, aero crown
Drivetrain
Component Group
Triathlon Mix
Shimano Ultegra
Shifters
Shimano Dura Ace
Shimano Dura-Ace Bar End
Front Derailleur
Shimano 105 FD-5700, braze-on
Shimano 105
Rear Derailleur
Shimano Ultegra RD-6700
Shimano Ultegra
Crankset
FSA Gossamer, 53/39t teeth
FSA Gossamer, 39/53 teeth
Bottom Bracket
FSA Mega EXO
FSA Mega EXO
Cassette
Shimano 105
Shimano CS-5600
Rear Cogs
10-speed, 11 - 25 teeth
10-speed, 11 - 25 teeth
Chain
KMC DX10SC
SRAM PC-1030
Brakes
Brakes
TRP T725 Aero brakes, Tektro RX 4.1 levers
Tektro R530 brakes, Tektro RX 4.1 levers
Cockpit & Contact Points
Headset
1 1/8" FSA Internal
1" internal
Handlebar
Profile Design T2+ extensions
Profile Airwing
Handlebar Extensions
Not included
Profile Design T2+
Stem
Jamis Road 3D Forged Alloy
Jamis alloy
Saddle
Selle San Marco Ponza TT
Selle San Marco Ponza Trilon
Seatpost
Jamis Aero Carbon
Jamis Aero Carbon
Wheels & Tires
Hubs
Machined ball bearing
Alex ALX-270 aero
Rims
Alex ALX-270, 20-hole/24-hole
Alex ALX-270 aero, 20-hole/24-hole
Spokes
Bladed
Bladed
Front Tire
700 x 23c Vittoria Zaffiro
650/700 x 23c Vittoria Zaffiro
Wheel Size
700c wheels
650c/700c wheels
Historical specifications are presented as an archival reference. Components may have varied by market, size, or production run.