
SRAM PC-830 Chain One Color, 8 Speed
Replacement option
Velopedia Bicycle Archive
Original specifications: Shimano Deore · 8-speed · mechanical rear derailleur · legacy reference geometry.
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At a glance
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2004 archived details
Clues, not proof of model year. Colors vary and components may have been replaced.
| Frame Construction | TIG-welded |
|---|---|
| Frame Material | 7005 aluminum |
| Fork | Rock Shox Metro Mag, 50mm travel |
| Fork Material | Aluminum/magnesium, single crown |
| Component Group | Commuter Mix |
|---|---|
| Shifters | Shimano Alivio RapidFire |
| Front Derailleur | Shimano Nexave |
| Rear Derailleur | Shimano Deore |
| Crankset | Shimano Nexave, 28/38/48 teeth |
| Bottom Bracket | Shimano BB-UN25 |
| Rear Cogs | 8-speed |
| Chain | Shimano CN-HG50 |
| Pedals | Sport Flats |
| Brakes | Shimano Acera brakes, Shimano Alivio levers |
|---|
| Headset | 1 1/8" threadless Ritchey Logic |
|---|---|
| Handlebar | RMB Comfort Rise |
| Handlebar Extensions | Not included |
| Stem | RMB Adjustable |
| Saddle | RMB Custom |
| Seatpost | Rocky Mountain Suspension |
| Hubs | Shimano Alivio |
|---|---|
| Rims | Alex AL-DH19 |
| Spokes | DT stainless steel, 15ga. (1.8mm) straight gauge |
| Spoke Nipples | Brass nipples |
| Front Tire | Hutchinson Globetrotter |
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Historical measurements. Frame size unknown.
Reference drawing
Select an available measurement to locate it on the frame.
| Measurement | Legacy reference |
|---|---|
| Head-tube angle | 71° |
| Seat-tube angle | 73° |
| Chainstay / rear center | 445 mm |
| Wheelbase | 1064 mm |
| Fork offset / rake | 38.1 mm |
Frame size not recorded.
Original gearing is incomplete. Enter your setup to calculate ratios and cadence speeds.
Your changes apply to this calculation. The archived build stays unchanged.
| 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

Replacement option
28/38/48 teeth
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Archived specifications for reference. Check the fitted parts before ordering.
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.
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Archived: Frame: TIG-welded · Fork: Rock Shox Metro Mag, 50mm travel · Aluminum/magnesium, single crown
Archived: Fork: Rock Shox Metro Mag, 50mm travel
Archived: Group: Commuter Mix · Shifters: Shimano Alivio RapidFire · Front derailleur: Shimano Nexave · Rear derailleur: Shimano Deore · Crankset: Shimano Nexave, 28/38/48 teeth · Bottom bracket: Shimano BB-UN25 · Rear cogs: 8-speed · Chain: Shimano CN-HG50
Archived: Brakes: Shimano Acera brakes, Shimano Alivio levers
Archived: Rims: Alex AL-DH19 · Hubs: Shimano Alivio · Front tire: Hutchinson Globetrotter
Archived: Headset: 1 1/8" threadless Ritchey Logic · Handlebar: RMB Comfort Rise · Stem: RMB Adjustable · Seatpost: Rocky Mountain Suspension · 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.