Velopedia Bicycle Archive
2004 Trek Calypso
Original specifications: N/A drivetrain · 26" wheels · legacy reference geometry.
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At a glance
- Model year
- 2004
- Category
- Cruiser
- Original MSRP
- $309.99
- Sizes
- 20", womens 17"
- Colors
- Black Chrome/Wheat Silver, Blue/Silver
- Geometry
- Legacy reference
- In this record
- 23 specifications · archived image · original MSRP · geometry
- Archive ID
- 31550
Model history 13 other years
Frameset
| Frame Construction | TIG-welded |
|---|---|
| Frame Material | Aluminum |
| Fork | Trek Cruiser |
| Fork Material | Hi-tensile steel, unicrown crown |
Drivetrain
| Shifters | SRAM MRX Plus |
|---|---|
| Rear Derailleur | Shimano Tourney TY-40 |
| Crankset | 3-piece aluminum, 38 teeth |
| Rear Cogs | 7-speed, 13 - 34 teeth |
| Chain | 1/2 x 3/32" |
| Pedals | Nylon platform |
Brakes
| Brakes | Aluminum linear-pull brakes, aluminum linear-pull levers |
|---|
Cockpit & Contact Points
| Headset | 1 1/8" steel |
|---|---|
| Handlebar | Steel, cruiser |
| Handlebar Extensions | Not included |
| Stem | Aluminum |
| Saddle | Trek Webspring Comfort |
| Seatpost | Aluminum, 27.2mm diameter |
Wheels & Tires
| Hubs | Aluminum |
|---|---|
| Rims | Aluminum, 36-hole |
| Spokes | Stainless steel, 14ga. (2.0mm) straight gauge |
| Spoke Nipples | Brass nipples |
| Front Tire | 26 x 2.125" cruiser |
| Wheel Size | 26" wheels |
Historical reference geometry
Geometry
This historical geometry describes the model, but the original source does not identify its frame size. Use it as a period reference, not a size-specific fit comparison.
| Measurement | Legacy reference |
|---|---|
| Top tube | 609 mm |
| Head-tube angle | 69.5° |
| Seat-tube angle | 72.8° |
| Chainstay / rear center | 450 mm |
| Wheelbase | 1129 mm |
The preserved source contains one model-level geometry set without an identified frame size.
Published drivetrain ratios
Gearing
Lower ratios provide more mechanical advantage for climbing. Higher ratios turn the rear wheel farther with each crank revolution.
The bar uses the same mechanical-ratio calculation as Compare. Wheel-dependent speed appears only when the record includes an exact ISO/ETRTO rear tire size; no tire size is assumed.
Parts & serviceability
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Bike-specific inspection checklist 19 checks based on 5 archived component groups Open checklistClose checklist
This checklist uses the archived equipment for this bike. It cannot confirm the condition, service history or later component changes of the example in front of you.
Identity and fit
Follow the full used-bike inspection order →Archived: 2004 Trek Calypso · Cruiser · Published sizes: 20", womens 17"
Frame and fork
Inspect the frame and fork →Archived: Frame: TIG-welded · Fork: Trek Cruiser · Hi-tensile steel, unicrown crown
Drivetrain
Check drivetrain wear →Archived: Shifters: SRAM MRX Plus · Rear derailleur: Shimano Tourney TY-40 · Crankset: 3-piece aluminum, 38 teeth · Rear cogs: 7-speed, 13 - 34 teeth · Chain: 1/2 x 3/32"
Brakes
Inspect the brakes →Archived: Brakes: Aluminum linear-pull brakes, aluminum linear-pull levers
Wheels and tires
Check wheels and tires →Archived: Wheel size: 26" wheels · Rims: Aluminum, 36-hole · Hubs: Aluminum · Front tire: 26 x 2.125" cruiser
Controls and contact points
Archived: Headset: 1 1/8" steel · Handlebar: Steel, cruiser · Stem: Aluminum · Seatpost: Aluminum, 27.2mm diameter · Saddle: Trek Webspring Comfort · Pedals: Nylon platform
Before and during the test ride
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Current market
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Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.





