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.
- Handling
1999 Co-Motion Java has a 1.0° slacker head-tube angle than 1997 Co-Motion Java in the archived geometry. Frame size is not identified for 1997 Co-Motion Java and 1999 Co-Motion Java.
Fork offset, tire size and wheelbase also affect steering; head angle alone is not a handling verdict.
- Data limitation
Only 1997 Co-Motion Java 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.
Lowest1.14:1Highest4.91:1Total range430%
Estimated speed at 90 RPMLowest gearHighest gear
Uses front tire 700C×28; rear size isn’t listed.
Gearing unavailable for this size.
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
1997 Co-Motion Java
1999 Co-Motion Java
Overview
Model Year
1997
1999
Brand
Co-Motion
Co-Motion
Model
Java
Java
Bicycle Type
Tandem (road)
Tandem (road)
Original MSRP
$3,853.00
$3,679.00
Colors
Blue, Bronze, Chrome Yellow, Cream, Custom Fade, Custom Flame, Green Metall
—
Sizes
Captain 21"/stoker 19", captain 22"/stoker 20", captain 22.5"/stoker 19", c
Captain 21"/stoker 18", captain 22"/stoker 19", captain 23"/stoker 20"
Weight
37 lb
—
Frameset
Frame Construction
TIG-welded
TIG-welded
Frame Material
Co-Motion Reynolds 531
Reynolds 631
Fork
Co-Motion
Co-Motion
Fork Material
Reynolds 531, unicrown crown
4130 chromoly, unicrown crown
Drivetrain
Component Group
Sachs New Success
Tandem Mix
Shifters
Sachs New Success Ergo
Shimano Ultegra bar-end
Front Derailleur
Sachs New Success, bottom-pull/clamp-on 31.8 mm
Shimano Ultegra, bottom-pull/clamp-on 31.8mm
Rear Derailleur
Sachs New Success
Shimano Deore XT SGS
Crankset
Ritchey Tandem, 32/44/54 teeth
Ritchey Tandem
Bottom Bracket
Shimano BB-UN51, 122.5 mm spindle
Shimano BB-UN52
BB Shell Width
68mm Threadless
68mm English
Rear Cogs
8-speed, 11 - 28 teeth
9-speed, 11 - 32 teeth
Chain
Sachs SC-M55, 1/2 x 3/32"
Shimano CN-HG92, 1/2 x 3/32"
Pedals
Not included
Not included
Brakes
Brakes
Shimano Deore XT V-Brake brakes, Sachs New Success levers
Shimano Ultegra Dual Pivot brakes, Dia-Compe 287 levers
Cockpit & Contact Points
Headset
1 1/8" Chris King
1 1/8" threadless Race Face Thermo SP
Handlebar
Profile Hammer
Profile Hammer
Stem
Co-Motion chromoly
Salsa Moto Ace
Saddle
Terry men's/Terry women's
—
Seatpost
Kalloy Uno, 29.8 mm diameter
Zoom Microset, 29.8mm diameter
Wheels & Tires
Hubs
Phil Wood tandem
Phil Wood tandem
Rims
Mavic T 217 SUP, 40-hole
Mavic T 217 SUP
Spokes
DT stainless steel, 2.0mm straight gauge
DT stainless steel, 2.0mm straight gauge
Spoke Nipples
Brass nipples
Brass nipples
Front Tire
700 x 28c Continental Super Sport
700 x 28c Avocet Fast Grip
Wheel Size
700c wheels
700c wheels
Geometry · choose a size for each bicycle
Geometry size
Head-tube angle
74°
73°
Seat-tube angle
—
73°
Fork offset / rake
38 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.