SRAM PC-830 Chain One Color, 8 Speed
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Velopedia Bicycle Archive
2004 Rocky Mountain Metro
Original specifications: Shimano Alivio · 8-speed · mechanical rear derailleur · legacy reference geometry.
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At a glance
Archive #30820- Model year
- 2004
- Category
- Hybrid
- Original MSRP
- $649.00
- Sizes
- 16", 17.5", 18.5", 19.5", 21", 22.5"
- Geometry
- Legacy reference
- In this record
- 24 specifications · archived image · original MSRP · geometry
Model history 3 other years
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Identification clues
2004 archived details
- Frame
- 7005 aluminum
- Original equipment
- Hybrid Mix
Clues, not proof of model year. Colors vary and components may have been replaced.
Original build7005 aluminum · Hybrid Mix
Frameset
| Frame Construction | TIG-welded |
|---|---|
| Frame Material | 7005 aluminum |
| Fork | Rock Mountain |
| Fork Material | Chromoly, unicrown crown |
Drivetrain
| Component Group | Hybrid Mix |
|---|---|
| Shifters | Shimano Alivio RapidFire |
| Front Derailleur | Shimano Nexave |
| Rear Derailleur | Shimano Alivio |
| Crankset | Shimano Nexave, 28/38/48 teeth |
| Bottom Bracket | Shimano BB-UN25 |
| Rear Cogs | 8-speed, 32 teeth |
| Chain | Shimano CN-HG50 |
| Pedals | Sport Flats |
Brakes
| Brakes | Shimano Alivio V-Brake brakes, Shimano Alivio levers |
|---|
Cockpit & Contact Points
| Headset | 1 1/8" threadless Ritchey Logic |
|---|---|
| Handlebar | RMB Comfort Rise |
| Stem | RMB Adjustable |
| Saddle | RMB Custom |
| Seatpost | Rocky Mountain |
Wheels & Tires
| Hubs | Shimano Alivio |
|---|---|
| Rims | Alex AL-DH19 |
| Spokes | DT stainless steel, straight gauge |
| Spoke Nipples | Brass nipples |
| Front Tire | Hutchinson Globetrotter |
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Geometry
Historical measurements. Frame size unknown.
Reference drawing
Size
Measurement
Measurement
—
Select an available measurement to locate it on the frame.
All geometry measurementsLegacy reference · 5 measurements
| Measurement | Legacy reference |
|---|---|
| Top tube | 570 mm |
| Head-tube angle | 71° |
| Seat-tube angle | 73° |
| Chainstay / rear center | 445 mm |
| Wheelbase | 1064 mm |
Frame size not recorded.
Gearing
Original gearing is incomplete. Enter your setup to calculate ratios and cadence speeds.
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
Shimano Alivio V-Brake brakes
Shimano Alivio levers
Shimano BB-UN25
More parts (6)Fewer parts
Shimano Nexave
28/38/48 teeth
Shimano Alivio
Shimano Alivio RapidFire
1 1/8" threadless Ritchey Logic
Alex AL-DH19
Shimano Alivio
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
- Hutchinson Globetrotter
- Drivetrain
- 8-speed
- Bottom bracket / shell
- Shimano BB-UN25
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: Rock Mountain · Chromoly, unicrown crown
Drivetrain
Check drivetrain wear →Archived: Group: Hybrid Mix · Shifters: Shimano Alivio RapidFire · Front derailleur: Shimano Nexave · Rear derailleur: Shimano Alivio · Crankset: Shimano Nexave, 28/38/48 teeth · Bottom bracket: Shimano BB-UN25 · Rear cogs: 8-speed, 32 teeth · Chain: Shimano CN-HG50
Brakes
Inspect the brakes →Archived: Brakes: Shimano Alivio V-Brake brakes, Shimano Alivio levers
Wheels and tires
Check wheels and tires →Archived: Rims: Alex AL-DH19 · Hubs: Shimano Alivio · Front tire: Hutchinson Globetrotter
Controls and contact points
Archived: Headset: 1 1/8" threadless Ritchey Logic · Handlebar: RMB Comfort Rise · Stem: RMB Adjustable · Seatpost: Rocky Mountain · Saddle: RMB Custom · Pedals: Sport Flats
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Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.