Specifications
- Frame
- Co-Motion heat-treated zonally-butted tandem tubing
- Groupset
- Tandem Mix
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At a glance
Key differences
Supported differences are shown below. Data limitations are labeled separately.
- Data limitation
No geometry is recorded for 2010 Co-Motion Primera and 2007 Co-Motion Primera.
- Gearing
2007 Co-Motion Primera has a 13% lower climbing ratio than 2010 Co-Motion Primera.
A lower ratio gives more mechanical advantage; rear-wheel rollout determines distance per crank turn.
- Identity & price
2007 Co-Motion Primera had an original MSRP $405 lower than 2010 Co-Motion Primera.
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.
Lowest1.07:1Highest4.73:1Total range441%
Estimated speed at 90 RPMLowest gearHighest gear
Uses front tire 700C×28; rear size isn’t listed.
Lowest0.94:1Highest4.73:1Total range504%
Estimated speed at 90 RPMLowest gearHighest gear
Uses front tire 700C×28; 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
2010 Co-Motion Primera
2007 Co-Motion Primera
Overview
Model Year
2010
2007
Brand
Co-Motion
Co-Motion
Model
Primera
Primera
Bicycle Type
Tandem (road)
Tandem (road)
Original MSRP
$3,600.00
$3,195.00
Colors
Ferrari Red, Viola Blue
Choice of 30 standard PPG
Sizes
Captain 21"/stoker 18", captain 22"/stoker 19", captain 23"/stoker 18", captain 23"/stoker 20"
Captain 21"/stoker 18", captain 22"/stoker 19", captain 23"/stoker 18", captain 23"/stoker 20"
Weight
—
—
Frameset
Frame Construction
TIG-welded
TIG-welded
Frame Material
Co-Motion heat-treated zonally-butted tandem tubing
Co-Motion heat-treated zonally-butted tandem tubing
Fork
Co-Motion
Co-Motion
Fork Material
Taper Gauge Chromoly w/CNC steerer, unicrown crown
Chromoly, unicrown crown
Drivetrain
Component Group
Tandem Mix
Tandem Mix
Shifters
Shimano Ultegra STI
Shimano 105 STI
Front Derailleur
Shimano Ultegra Triple
Shimano Tiagra Triple
Rear Derailleur
Shimano Ultegra Triple
Shimano XT
Crankset
TruVativ Elita Tandem, 30/39/52 teeth
TruVativ Elita, 30/39/52 teeth
Bottom Bracket
TruVativ Elita GXP
TruVativ Elita GXP
Cassette
SRAM 1070
—
Rear Cogs
10-speed, 11 - 28 teeth
9-speed, 11 - 32 teeth
Chain
Kmc
KMC X9
Pedals
Not included
Not included
Brakes
Brakes
Avid Single Digit 5 brakes, Shimano Ultegra levers
Avid Single Digit 5 brakes, Shimano 105 STI levers
Cockpit & Contact Points
Headset
1 1/8" threadless FSA Orbit X
1 1/8" threadless FSA Orbit Extreme
Handlebar
FSA Omega 31.8 Capt., and Co-Motion Stoker
FSA RD-300
Handlebar Extensions
Not included
Not included
Stem
FSA OS-150 and Co-Motion Telescoping Stoker
FSA OS-150
Saddle
Selle Italia X2
Co-Motion D2
Seatpost
Kalloy Seraph, 29.8mm diameter
Kalloy Seraph, 29.8mm diameter
Wheels & Tires
Hubs
—
Co-Motion A-10 Tandem Disk
Rims
Velocity Dyad
Velocity Dyad
Spokes
—
DT Swiss, 14ga. (2.0mm)
Front Tire
700 x 28c Continental Ultra Sport
700 x 28c Continental Super Sport
Wheel Size
700c wheels
700c wheels
Historical specifications are presented as an archival reference. Components may have varied by market, size, or production run.