Lowest1.14:1
Highest4.91:1
Total range430%
Estimated speed At 90 RPM
Lowest gear
Highest gear
Uses front tire 700C×28; rear size isn’t listed.
Velopedia Bicycle Archive
1997 Co-Motion Speedster
Original specifications: Co-Motion Tandem Group drivetrain · 700c wheels · 38 lb published weight.
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At a glance
Archive #62443- Model year
- 1997
- Category
- Tandem
- Original MSRP
- $2,895.00
- Sizes
- Captain 21"/stoker 18", captain 22"/stoker 19", captain 23"/stoker 20"
- Colors
- Blue, Bronze, Chrome Yellow, Cream, Custom Fade, Green Metallic, Red
- Weight
- 38 lb
- In this record
- 26 specifications · archived image · original MSRP
Model history 11 other years
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Compare side by side
Identification clues
1997 archived details
- Published colors
- Blue, Bronze, Chrome Yellow, Cream, Custom Fade, Green Metallic, Red
- Frame
- Co-Motion Reynolds 531
- Original equipment
- Co-Motion Tandem Group
Clues, not proof of model year. Colors vary and components may have been replaced.
Original buildCo-Motion Reynolds 531 · Co-Motion Tandem Group · 700c wheels
Frameset
| Frame Construction | TIG-welded |
|---|---|
| Frame Material | Co-Motion Reynolds 531 |
| Fork | Co-Motion |
| Fork Material | Reynolds 531, unicrown crown |
Drivetrain
| Component Group | Co-Motion Tandem Group |
|---|---|
| Shifters | Shimano 600 Ultegra bar-end |
| Front Derailleur | Sachs New Success, bottom-pull/clamp-on 31.8 mm |
| Rear Derailleur | Sachs New Success |
| Crankset | Ritchey Tandem, 32/44/54 teeth |
| Bottom Bracket | Shimano BB-UN51, 122.5 mm spindle |
| BB Shell Width | 68mm English |
| Rear Cogs | 8-speed, 11 - 28 teeth |
| Chain | Sachs SC-M55, 1/2 x 3/32" |
| Pedals | Not included |
Brakes
| Brakes | Shimano Deore LX V-Brake brakes, Dia-Compe 287 levers |
|---|
Cockpit & Contact Points
| Headset | 1 1/8" YST aluminum |
|---|---|
| Handlebar | Profile Hammer |
| Stem | Co-Motion chromoly |
| Saddle | Terry men's/Terry women's |
| Seatpost | Kalloy Uno, 29.8 mm diameter |
Wheels & Tires
| Hubs | Phil Wood tandem |
|---|---|
| Rims | Mavic T 217 SUP, 40-hole |
| Spokes | DT stainless steel, 2.0mm straight gauge |
| Spoke Nipples | Brass nipples |
| Front Tire | 700 x 28c Continental Super Sport |
| Wheel Size | 700c wheels |
No specifications match. Try a component name or clear your search.
Gearing
Lower gears help on climbs. Higher gears suit higher speeds.
RPM
RPM = pedal turns per minute.
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.
Try your current gearingChanged tires or gears? Calculate your setup.
Your changes apply to this calculation. The archived build stays unchanged.
Gearing results
| Measure | Original | Your setup |
|---|---|---|
| Lowest ratio | — | — |
| Highest ratio | — | — |
| Total range | — | — |
| Lowest-gear speed | — | — |
| Highest-gear speed | — | — |
Speeds are estimates. These calculations do not establish component compatibility or available tire clearance.
Parts & serviceability
Find replacement parts
700 x 28c Continental Super Sport
Retailer offers
Vittoria Zaffiro Pro V Clincher Tire Black, 700x28
700x28c
Replacement option
Other replacement options (1)
Specialized SW Mondo 2Bliss Tire Black, 700x28
700x28c
Replacement option
Continental Super Sport on eBaySponsored links
Shimano Deore LX V-Brake brakes
Dia-Compe 287 levers
Shimano BB-UN51
122.5 mm spindle
More parts (4)Fewer parts
Ritchey Tandem
32/44/54 teeth
Shimano 600 Ultegra bar-end
Kalloy Uno
29.8 mm diameter
Mavic T 217 SUP
40-hole
Based on the original build. Check fit and installed parts before ordering. Affiliate links may earn Velopedia a commission. As an Amazon Associate I earn from qualifying purchases.
Parts and service referenceQuick reference before buying parts
Archived specifications for reference. Check the fitted parts before ordering.
- Front tire
- 700 x 28c Continental Super Sport
- Drivetrain
- 8-speed
- Seatpost diameter
- 29.8 mm
- Bottom bracket / shell
- Shimano BB-UN51, 122.5 mm spindle · 68mm English
Equipment inspection checks 10 checks based on 5 archived component groups Open equipment checksClose equipment checks
Checks selected from the archived equipment. Confirm what is fitted today. This is not a complete safety inspection; use the full inspection guide before test riding.
Full used-bike inspection guide →
Frame and fork
Inspect the frame and fork →Archived: Frame: TIG-welded · Fork: Co-Motion · Reynolds 531, unicrown crown
Drivetrain
Check drivetrain wear →Archived: Group: Co-Motion Tandem Group · Shifters: Shimano 600 Ultegra bar-end · Front derailleur: Sachs New Success, bottom-pull/clamp-on 31.8 mm · Rear derailleur: Sachs New Success · Crankset: Ritchey Tandem, 32/44/54 teeth · Bottom bracket: Shimano BB-UN51, 122.5 mm spindle · Rear cogs: 8-speed, 11 - 28 teeth · Chain: Sachs SC-M55, 1/2 x 3/32"
Brakes
Inspect the brakes →Archived: Brakes: Shimano Deore LX V-Brake brakes, Dia-Compe 287 levers
Wheels and tires
Check wheels and tires →Archived: Wheel size: 700c wheels · Rims: Mavic T 217 SUP, 40-hole · Hubs: Phil Wood tandem · Front tire: 700 x 28c Continental Super Sport
Controls and contact points
Archived: Headset: 1 1/8" YST aluminum · Handlebar: Profile Hammer · Stem: Co-Motion chromoly · Seatpost: Kalloy Uno, 29.8 mm diameter · Saddle: Terry men's/Terry women's · Pedals: Not included
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Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.