VelopediaBicycle Archive · Specification report

Bicycle comparison

1997 Co-Motion Speedster · 1999 Co-Motion Speedster

Specification1997 Co-Motion Speedster1999 Co-Motion Speedster
Overview
Model year19971999
BrandCo-MotionCo-Motion
ModelSpeedsterSpeedster
Bicycle typeTandem (road)Tandem (road)
Archive ID6244385016
Original MSRP$2,895.00$2,995.00
ColorsBlue, bronze, chrome yellow, cream, custom fade, green metallic, red—
SizesCaptain 21"/stoker 18", captain 22"/stoker 19", captain 23"/stoker 20"Captain 21"/stoker 18", captain 22"/stoker 19", captain 23"/stoker 20"
Weight38 lb35.85 lb
Frameset
Frame constructionTIG-weldedTIG-welded
Frame materialCo-Motion Reynolds 531Reynolds 525 w/Reynolds 725
ForkCo-MotionCo-Motion
Fork materialReynolds 531, unicrown crown4130 chromoly, unicrown crown
Rear shockN/AN/A
Drivetrain
Component groupCo-Motion Tandem GroupTandem Mix
ShiftersShimano 600 Ultegra bar-endShimano bar-end
Front derailleurSachs New Success, bottom-pull/clamp-on 31.8 mmShimano Ultegra, bottom-pull/clamp-on 31.8mm
Rear derailleurSachs New SuccessShimano Deore XT SGS
CranksetRitchey Tandem, 32/44/54 teethRitchey Tandem, 32/44/54 teeth
Bottom bracketShimano BB-UN51, 122.5 mm spindleShimano BB-UN52
BB shell width68mm English68mm English
Rear cogs8-speed, 11 - 28 teeth9-speed, 11 - 32 teeth
ChainSachs SC-M55, 1/2 x 3/32"Shimano CN-HG92, 1/2 x 3/32"
PedalsNot includedNot included
Brakes
BrakesShimano Deore LX V-Brake brakes, Dia-Compe 287 leversAvid 1D-25 brakes, Dia-Compe 287 levers
Cockpit & contact points
Headset1 1/8" YST aluminum1 1/8" threadless Race Face Thermo SP
HandlebarProfile HammerProfile Hammer
Handlebar extensionsN/AN/A
StemCo-Motion chromolySalsa Moto Ace
SaddleTerry men's/Terry women's—
SeatpostKalloy Uno, 29.8 mm diameterZoom Microset, 29.8mm diameter
Wheels & tires
HubsPhil Wood tandemPhil Wood tandem
RimsMavic T 217 SUP, 40-holeMavic T 217 SUP
SpokesDT stainless steel, 2.0mm straight gaugeDT stainless steel, 2.0mm straight gauge
Spoke nipplesBrass nipplesBrass nipples
Front tire700 x 28c Continental Super Sport700 x 28c Avocet Fast Grip
Wheel size700c wheels700c wheels

Geometry comparison

One selected size or frame position per bicycle, matching the comparison dropdown choices used when Print / PDF was opened.

Measurement1997 Co-Motion Speedster1999 Co-Motion Speedster
Selected size / position—Legacy reference
Head-tube angle—73°
Seat-tube angle—73°

Manufacturer-published archive data. Confirm exact standards and dimensions before ordering parts or performing service. Generated by Velopedia on November 9, 2026.