SRAM PC-830 Chain One Color, 8 Speed
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Velopedia Bicycle Archive
1999 Bike Friday Pocket Rocket 3x8
Original specifications: Shimano 105 drivetrain · 20" wheels · 21 lb published weight.
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No archive photo is available for this record.
At a glance
Archive #80265- Model year
- 1999
- Category
- Folding
- Original MSRP
- $1,700.00
- Sizes
- Custom
- Colors
- Black Diamond, Candy Apple, Chrome Yellow, Cream Soda Blue, Flag Red, Grass Green, Ink Black, Midnight Blue, Polar White, Power Purple, Racing Green, Sapphire Blue, Stealth
- Weight
- 21 lb
- Geometry
- Legacy reference
- In this record
- 27 specifications · original MSRP · geometry
Original build4130 chromoly · Shimano 105 · 20" wheels
Frameset
| Frame Construction | Brazed/welded |
|---|---|
| Frame Material | 4130 chromoly |
| Fork | Bike Friday Aero |
| Fork Material | 4130 chromoly, unicrown crown |
Drivetrain
| Component Group | Shimano 105 |
|---|---|
| Shifters | Shimano 105 STI Dual Control |
| Front Derailleur | Shimano 105, braze-on |
| Rear Derailleur | Shimano 105 GS |
| Crankset | Shimano AceraX |
| Bottom Bracket | Shimano BB-5500 |
| BB Shell Width | 68mm English |
| Rear Cogs | 3-speed internal x 8-speed, 12 - 23 teeth |
| Chain | Shimano CN-HG72, 1/2 x 3/32" |
| Pedals | Not included |
Brakes
| Brakes | Shimano 105 Dual Pivot brakes, Shimano 105 STI levers |
|---|
Cockpit & Contact Points
| Headset | 1 1/4" Shimano Deore XT |
|---|---|
| Handlebar | Aluminum, drop style |
| Handlebar Extensions | Not included |
| Stem | Custom chromoly, adjustable |
| Saddle | Not included |
| Seatpost | 27.0mm diameter |
Wheels & Tires
| Hubs | Front: Shimano 105, Rear: Sachs Neos 3 x 8 |
|---|---|
| Rims | Sun Rims ME14A |
| Spokes | DT stainless steel, 2.0mm straight gauge |
| Spoke Nipples | Brass nipples |
| Front Tire | 20 x 1 1/8" IRC Roadlite EX |
| Wheel Size | 20" wheels |
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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 · 4 measurements
| Measurement | Legacy reference |
|---|---|
| Head-tube angle | 73° |
| Seat-tube angle | 73° |
| Chainstay / rear center | 425.4 mm |
| Fork offset / rake | 35 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 CN-HG72
1/2 x 3/32"
Retailer offers
Shimano CN-HG72 on eBaySponsored links
Shimano BB-5500
Shimano AceraX
More parts (5)Fewer parts
Shimano 105
braze-on
Shimano 105 GS
Shimano 105 STI Dual Control
27.0mm diameter
1 1/4" Shimano Deore XT
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
- 20 x 1 1/8" IRC Roadlite EX
- Drivetrain
- Shimano 105
- Seatpost diameter
- 27 mm
- Bottom bracket / shell
- Shimano BB-5500 · 68mm English
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: Brazed/welded · Fork: Bike Friday Aero · 4130 chromoly, unicrown crown
Drivetrain
Check drivetrain wear →Archived: Group: Shimano 105 · Shifters: Shimano 105 STI Dual Control · Front derailleur: Shimano 105, braze-on · Rear derailleur: Shimano 105 GS · Crankset: Shimano AceraX · Bottom bracket: Shimano BB-5500 · Rear cogs: 3-speed internal x 8-speed, 12 - 23 teeth · Chain: Shimano CN-HG72, 1/2 x 3/32"
Brakes
Inspect the brakes →Archived: Brakes: Shimano 105 Dual Pivot brakes, Shimano 105 STI levers
Wheels and tires
Check wheels and tires →Archived: Wheel size: 20" wheels · Rims: Sun Rims ME14A · Hubs: Front: Shimano 105, Rear: Sachs Neos 3 x 8 · Front tire: 20 x 1 1/8" IRC Roadlite EX
Controls and contact points
Archived: Headset: 1 1/4" Shimano Deore XT · Handlebar: Aluminum, drop style · Stem: Custom chromoly, adjustable · Seatpost: 27.0mm diameter · Saddle: Not included · Pedals: Not included
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Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.