Lowest1.00:1
Highest3.29:1
Total range329%
Estimated speed At 90 RPM
Lowest gear
Highest gear
Uses front tire 26×1.5; rear size isn’t listed.
Velopedia Bicycle Archive
2009 Dahon Espresso
Original specifications: Shimano Tourney · 7-speed rear derailleur · 26" wheels · 29.3 lb published weight.
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At a glance
Archive #19181- Model year
- 2009
- Category
- Folding
- Sizes
- S, M, L
- Colors
- Sand
- Weight
- 29.3 lb
- In this record
- 27 specifications
Model history 5 other years
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Identification clues
2009 archived details
- Published colors
- Sand
- Frame
- 7005 aluminum
- Original equipment
- Folding Mix
Clues, not proof of model year. Colors vary and components may have been replaced.
Original build7005 aluminum · Folding Mix · 26" wheels
Frameset
| Frame Construction | TIG-welded |
|---|---|
| Frame Material | 7005 aluminum |
| Fork | Rigid Steel |
| Fork Material | High-tensile steel, unicrown crown |
Drivetrain
| Component Group | Folding Mix |
|---|---|
| Shifters | Shimano Revo twist |
| Front Derailleur | Microshift FD-M22 |
| Rear Derailleur | Shimano Tourney TX-51 |
| Crankset | Cold-forged aluminum, 26/36/46 teeth |
| Bottom Bracket | Five piece BMX type |
| Cassette | Shimano |
| Rear Cogs | 7-speed, 14 - 26 teeth |
| Chain | KMC Z50 |
| Pedals | Suntour Fold |
Brakes
| Brakes | ProMax linear-pull brakes, Promax alloy levers |
|---|
Cockpit & Contact Points
| Headset | 1 1/8" Dahon Fusion |
|---|---|
| Handlebar | 6061 aluminum riser |
| Handlebar Extensions | Not included |
| Stem | Alloy |
| Saddle | Dahon Comfort |
| Seatpost | BioLogic Zorin PostPump, 27.2mm diameter |
Wheels & Tires
| Hubs | Formula aluminum, Q/R |
|---|---|
| Rims | Aluminum |
| Spokes | Stainless |
| Spoke Nipples | Brass |
| Front Tire | 26 x 1.50" Kenda Kwest |
| 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
BioLogic Zorin PostPump
27.2mm diameter
Retailer offers
Race Face Ride XC Seatpost Black, 27.2x375mm
Replacement option
KMC Z50
More parts (3)Fewer parts
ProMax linear-pull brakes
Promax alloy levers
Shimano Tourney TX-51
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 1.50" Kenda Kwest
- Drivetrain
- 7-speed
- Seatpost diameter
- 27.2 mm
- Bottom bracket / shell
- Five piece BMX type
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: Rigid Steel · High-tensile steel, unicrown crown
Drivetrain
Check drivetrain wear →Archived: Group: Folding Mix · Shifters: Shimano Revo twist · Front derailleur: Microshift FD-M22 · Rear derailleur: Shimano Tourney TX-51 · Crankset: Cold-forged aluminum, 26/36/46 teeth · Bottom bracket: Five piece BMX type · Cassette: Shimano · Rear cogs: 7-speed, 14 - 26 teeth · Chain: KMC Z50
Brakes
Inspect the brakes →Archived: Brakes: ProMax linear-pull brakes, Promax alloy levers
Wheels and tires
Check wheels and tires →Archived: Wheel size: 26" wheels · Rims: Aluminum · Hubs: Formula aluminum, Q/R · Front tire: 26 x 1.50" Kenda Kwest
Controls and contact points
Archived: Headset: 1 1/8" Dahon Fusion · Handlebar: 6061 aluminum riser · Stem: Alloy · Seatpost: BioLogic Zorin PostPump, 27.2mm diameter · Saddle: Dahon Comfort · Pedals: Suntour Fold
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Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.