Lowest0.82:1
Highest3.43:1
Total range416%
Estimated speed At 90 RPM
Lowest gear
Highest gear
Uses front tire 26×2.1; rear size isn’t listed.
Velopedia Bicycle Archive
2004 Giant Boulder SE
Original specifications: Shimano Altus · 7-speed · mechanical rear derailleur · 26" wheels.
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At a glance
Archive #31591- Model year
- 2004
- Category
- Mountain
- Original MSRP
- $290.00
- Sizes
- 12.5", 14", 17", 19", 21", 23", womens 14", womens 17", womens 19"
- Colors
- Black/White, Blue/Silver, Red
- In this record
- 25 specifications · archived image · original MSRP
Model history 8 other years
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Identification clues
2004 archived details
- Published colors
- Black/White, Blue/Silver, Red
- Frame
- Aluxx aluminum
- Original equipment
- Mountain Mix
Clues, not proof of model year. Colors vary and components may have been replaced.
Original buildAluxx aluminum · Mountain Mix · 26" wheels
Frameset
| Frame Construction | TIG-welded |
|---|---|
| Frame Material | Aluxx aluminum |
| Fork | SR Suntour XC60, 75mm travel |
| Fork Material | Aluminum, single crown |
Drivetrain
| Component Group | Mountain Mix |
|---|---|
| Shifters | Shimano EF-29 |
| Front Derailleur | Shimano C102 |
| Rear Derailleur | Shimano Altus |
| Crankset | Suntour XR-120, 28/38/48 teeth |
| Rear Cogs | 7-speed, 14 - 34 teeth |
| Chain | 1/2 x 3/32" |
| Pedals | Nylon body, steel cage |
Brakes
| Brakes | Aluminum linear-pull brakes, Shimano EF-29 levers |
|---|
Cockpit & Contact Points
| Headset | 1 1/8" threadless Aheadset |
|---|---|
| Handlebar | Steel, rise |
| Handlebar Extensions | Not included |
| Stem | Giant alloy MTB |
| Saddle | Giant Groove |
| Seatpost | Aluminum micro-adjust, 30.8mm diameter |
Wheels & Tires
| Hubs | Aluminum, Q/R |
|---|---|
| Rims | Aluminum, 36-hole |
| Spokes | Stainless steel, 14ga. (2.0mm) straight gauge |
| Spoke Nipples | Brass nipples |
| Front Tire | 26 x 2.10" center ridge all terrain |
| 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
1/2 x 3/32"
Replacement search: 7-speed bicycle chain Before ordering: Check chain width and length.
26 x 2.10" center ridge all terrain
Replacement search: 26x2.1 bicycle tire Before ordering: Check rim type and tire clearance.
Aluminum linear-pull brakes
Shimano EF-29 levers
More parts (2)Fewer parts
Shimano Altus
Aluminum micro-adjust
30.8mm diameter
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 2.10" center ridge all terrain
- Drivetrain
- 7-speed
- Seatpost diameter
- 30.8 mm
Equipment inspection checks 11 checks based on 6 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: SR Suntour XC60, 75mm travel · Aluminum, single crown
Suspension
Evaluate the suspension →Archived: Fork: SR Suntour XC60, 75mm travel
Drivetrain
Check drivetrain wear →Archived: Group: Mountain Mix · Shifters: Shimano EF-29 · Front derailleur: Shimano C102 · Rear derailleur: Shimano Altus · Crankset: Suntour XR-120, 28/38/48 teeth · Rear cogs: 7-speed, 14 - 34 teeth · Chain: 1/2 x 3/32"
Brakes
Inspect the brakes →Archived: Brakes: Aluminum linear-pull brakes, Shimano EF-29 levers
Wheels and tires
Check wheels and tires →Archived: Wheel size: 26" wheels · Rims: Aluminum, 36-hole · Hubs: Aluminum, Q/R · Front tire: 26 x 2.10" center ridge all terrain
Controls and contact points
Archived: Headset: 1 1/8" threadless Aheadset · Handlebar: Steel, rise · Stem: Giant alloy MTB · Seatpost: Aluminum micro-adjust, 30.8mm diameter · Saddle: Giant Groove · Pedals: Nylon body, steel cage
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Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.