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 2008 Jamis Comet and 2010 Jamis Comet.
- Data limitation
Only 2010 Jamis Comet has enough published drivetrain data for gearing calculations.
Gearing comparison
Lower gears help on climbs. Higher gears suit higher speeds.
RPM
RPM = pedal turns per minute.
Gearing unavailable for this size.
Lowest1.56:1Highest4.82:1Total range309%
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
2008 Jamis Comet
2010 Jamis Comet
Overview
Model Year
2008
2010
Brand
Jamis
Jamis
Model
Comet
Comet
Bicycle Type
Road race & triathlon
Road race & triathlon
Original MSRP
$1,250.00
Not documented
Colors
Monterey Blue/Pearl White
Victory Red/Pearl White
Sizes
51cm, 54cm, 56cm, 58cm, 61cm
51cm, 54cm, 56cm, 58cm, 61cm
Weight
20.25 lb
—
Frameset
Frame Construction
TIG-welded
TIG-welded
Frame Material
Aero 7005 butted aluminum
Aero 7005 butted aluminum
Fork
Jamis Aero
Jamis Aero
Fork Material
Carbon/chromoly steerer, aero crown
Carbon, aero crown
Drivetrain
Component Group
Triathlon Mix
Triathlon Mix
Shifters
Shimano Dura-Ace bar-end
Shimano Dura-Ace SL-BS79
Front Derailleur
Shimano 105, braze-on
Shimano 105 FD-5600, braze-on
Rear Derailleur
Shimano 105
Shimano Ultegra RD-6700
Crankset
FSA Gossamer
FSA Gossamer, 53/39 teeth
Bottom Bracket
FSA Mega EXO
FSA Mega EXO
Cassette
Shimano 105
Shimano CS-5600
Rear Cogs
10-speed, 11 - 23 teeth
10-speed, 11 - 25 teeth
Chain
SRAM PC-1030, 1/2 X 3/32"
KMC DX10SC
Pedals
Not included
—
Brakes
Brakes
Tektro R-350 brakes, Tekto RX 4.1 levers
Tektro R725 Aero TT brakes, Tektro RX 4.1 levers
Cockpit & Contact Points
Headset
1" Aheadset
1 1/8" threadless FSA Internal
Handlebar
Profile Design T2 Wing
Profile Design Air Wing
Handlebar Extensions
—
Profile Design T2+
Stem
Jamis
Jamis Road 3D Forged Alloy
Saddle
Selle San Marco Ponza Trilon
Selle San Marco Ponza TT
Seatpost
Jamis Aero Carbon, 27.2mm diameter
Jamis Aero Carbon
Wheels & Tires
Hubs
Alex ALX-270 aero
Alex ALX-270
Rims
Alex ALX-270 aero
Alex ALX-270 aero, 20-hole/24-hole
Spokes
—
Bladed
Front Tire
700 x 23c Vittoria Zaffiro
700 x 23c Vittoria Zaffiro
Wheel Size
700c wheels
700c wheels
Historical specifications are presented as an archival reference. Components may have varied by market, size, or production run.