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 1998 Co-Motion Java.
- Identity & price
1998 Co-Motion Java had an original MSRP $324 lower than 1997 Co-Motion Java.
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.
Lowest1.14:1Highest4.91:1Total range430%
Estimated speed at 90 RPMLowest gearHighest gear
Uses front tire 700C×28; rear size isn’t listed.
Lowest1.14:1Highest4.91:1Total range430%
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
1997 Co-Motion Java
1998 Co-Motion Java
Overview
Model Year
1997
1998
Brand
Co-Motion
Co-Motion
Model
Java
Java
Bicycle Type
Tandem (road)
Tandem (road)
Original MSRP
$3,853.00
$3,529.00
Colors
Blue, Bronze, Chrome Yellow, Cream, Custom Fade, Custom Flame, Green Metall
Bad Ass Red, Dark Charcoal Metallic, Dark Jade Green Metallic, Dark Maroon Metallic, Sapphire Blue
Sizes
Captain 21"/stoker 19", captain 22"/stoker 20", captain 22.5"/stoker 19", c
Captain 21"/stoker 18", captain 21"/stoker 19", captain 23"/stoker 20"
Weight
37 lb
—
Frameset
Frame Construction
TIG-welded
TIG-welded
Frame Material
Co-Motion Reynolds 531
Reynolds 531
Fork
Co-Motion
Co-Motion
Fork Material
Reynolds 531, unicrown crown
Chromoly, unicrown crown
Drivetrain
Component Group
Sachs New Success
Tandem Mix
Shifters
Sachs New Success Ergo
Shimano bar-end
Front Derailleur
Sachs New Success, bottom-pull/clamp-on 31.8 mm
Sachs New Success
Rear Derailleur
Sachs New Success
Sachs New Success
Crankset
Ritchey Tandem, 32/44/54 teeth
Ritchey Tandem, 32/44/54 teeth
Bottom Bracket
Shimano BB-UN51, 122.5 mm spindle
Shimano BB-UN52
BB Shell Width
68mm Threadless
—
Rear Cogs
8-speed, 11 - 28 teeth
8-speed, 11 - 28 teeth
Chain
Sachs SC-M55, 1/2 x 3/32"
Sachs SC-M55, 1/2 x 3/32"
Pedals
Not included
Not included
Brakes
Brakes
Shimano Deore XT V-Brake brakes, Sachs New Success levers
Shimano 600 Ultegra Dual Pivot brakes, Dia-Compe 287 levers
Cockpit & Contact Points
Headset
1 1/8" Chris King
1 1/8" Shimano Deore LX
Handlebar
Profile Hammer
Profile
Stem
Co-Motion chromoly
Co-Motion
Saddle
Terry men's/Terry women's
Terry men's/women's
Seatpost
Kalloy Uno, 29.8 mm diameter
American Classic, 29.8mm diameter
Wheels & Tires
Hubs
Phil Wood tandem
Phil Wood tandem
Rims
Mavic T 217 SUP, 40-hole
Mavic 217 SUP, 48-hole
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 Continental Super Sport
Wheel Size
700c wheels
700c wheels
Geometry · choose a size for each bicycle
Geometry size
—
Head-tube angle
74°
—
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.