Lowest1.07:1
Highest4.73:1
Total range441%
Estimated speed At 90 RPM
Lowest gear
Highest gear
Uses front tire 26×1.6; rear size isn’t listed.
Velopedia Bicycle Archive
2010 Co-Motion Mocha flatbar
Original specifications: Shimano Ultegra · 10-speed rear derailleur · 26" wheels.
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No archive photo is available for this record.
At a glance
Archive #21561- Model year
- 2010
- Category
- Tandem
- Original MSRP
- $3,557.00
- Sizes
- Captain 18"/stoker 15", captain 20"/stoker 17", captain 21.5"/stoker 18"
- Colors
- Choice of 30 standard PPG
- In this record
- 25 specifications · original MSRP
Original buildReynolds 631 air-hardened steel zonally-butted · Tandem Mix · 26" wheels
Frameset
| Frame Construction | TIG-welded |
|---|---|
| Frame Material | Reynolds 631 air-hardened steel zonally-butted |
| Fork | Co-Motion Tandem Disc Fork |
| Fork Material | Taper Gauge Chromoly w/CNC steerer, unicrown crown |
Drivetrain
| Component Group | Tandem Mix |
|---|---|
| Shifters | SRAM X.7 |
| Front Derailleur | Shimano Ultegra Triple |
| Rear Derailleur | Shimano Ultegra Triple |
| Crankset | TruVativ Elita, 30/39/52 teeth |
| Bottom Bracket | TruVativ |
| Cassette | SRAM 1070 |
| Rear Cogs | 10-speed, 11 - 28 teeth |
| Chain | KMC X10 |
| Pedals | Not included |
Brakes
| Brakes | Avid BB-5 mechanical Disc brakes, Avid SD-5 levers |
|---|
Cockpit & Contact Points
| Headset | 1 1/8" threadless FSA Orbit Extreme |
|---|---|
| Handlebar Extensions | Not included |
| Stem | FSA OS-150 and Co-Motion Telescoping Stoker |
| Saddle | Selle Italia X2 |
| Seatpost | Kalloy Seraph, 29.8mm diameter |
Wheels & Tires
| Hubs | Co-Motion A-10 Tandem Disk |
|---|---|
| Rims | Velocity Aerohead |
| Spokes | DT Swiss, 14ga. (2.0mm) |
| Front Tire | 26 x 1.60" Continental Sport Contact Reflex |
| Wheel Size | 26" 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
26 x 1.60" Continental Sport Contact Reflex
Continental Sport Contact Reflex on eBaySponsored links
Selle Italia X2
More parts (7)Fewer parts
Shimano Ultegra Triple
Before ordering: Confirm whether the drivetrain is mechanical or electronic before ordering.
Shimano Ultegra Triple
Before ordering: Confirm whether the drivetrain is mechanical or electronic before ordering.
SRAM X.7
FSA OS-150 and Co-Motion Telescoping Stoker
Kalloy Seraph
29.8mm diameter
1 1/8" threadless FSA Orbit Extreme
Velocity Aerohead
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
- 26 x 1.60" Continental Sport Contact Reflex
- Drivetrain
- 10-speed
- Seatpost diameter
- 29.8 mm
- Bottom bracket / shell
- TruVativ
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 Tandem Disc Fork · Taper Gauge Chromoly w/CNC steerer, unicrown crown
Drivetrain
Check drivetrain wear →Archived: Group: Tandem Mix · Shifters: SRAM X.7 · Front derailleur: Shimano Ultegra Triple · Rear derailleur: Shimano Ultegra Triple · Crankset: TruVativ Elita, 30/39/52 teeth · Bottom bracket: TruVativ · Cassette: SRAM 1070 · Rear cogs: 10-speed, 11 - 28 teeth · Chain: KMC X10
Brakes
Inspect the brakes →Archived: Brakes: Avid BB-5 mechanical Disc brakes, Avid SD-5 levers
Wheels and tires
Check wheels and tires →Archived: Wheel size: 26" wheels · Rims: Velocity Aerohead · Hubs: Co-Motion A-10 Tandem Disk · Front tire: 26 x 1.60" Continental Sport Contact Reflex
Controls and contact points
Archived: Headset: 1 1/8" threadless FSA Orbit Extreme · Stem: FSA OS-150 and Co-Motion Telescoping Stoker · Seatpost: Kalloy Seraph, 29.8mm diameter · Saddle: Selle Italia X2 · Pedals: Not included
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Specifications
- Frame
- ACMUltra7 zonally-butted 7005 aluminum
- Groupset
- Tandem Mix
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Macchiato
Specifications
- Frame
- Reynolds 631 air-hardened steel zonally-butted
- Groupset
- Tandem Mix
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Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.