
SRAM PC-850 Chain One Color, 8 Speed
8 Speed
Replacement option · verify fit
Velopedia Bicycle Archive
Original specifications: Shimano 105SC drivetrain · 650c wheels · 20.5 lb published weight.
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At a glance
| Frame Construction | Lugged |
|---|---|
| Frame Material | Columbus SLX/TSX |
| Fork | Marinoni |
| Fork Material | Columbus SL, sloping crown |
| Component Group | Shimano 105SC |
|---|---|
| Shifters | Shimano 105SC STI Dual Control |
| Front Derailleur | Shimano 105SC, bottom-pull/clamp-on 28.6mm |
| Rear Derailleur | Shimano 105SC GS |
| Crankset | Shimano 105SC, 30/42/52 teeth |
| Bottom Bracket | Shimano BB-UN52, 118mm spindle |
| BB Shell Width | 68mm English |
| Rear Cogs | 8-speed, Buyer's choice of gearing |
| Chain | Shimano CN-HG70, 1/2 x 3/32" |
| Pedals | Not included |
| Brakes | Shimano 105SC Dual Pivot brakes, Shimano 105SC levers |
|---|
| Headset | 1" Shimano 105SC |
|---|---|
| Handlebar | TTT Forma 2 |
| Stem | TTT Synthesis |
| Saddle | Selle Italia Flite |
| Seatpost | American Classic, 27.2mm diameter |
| Hubs | Shimano 105SC |
|---|---|
| Rims | Mavic CXP 12, 32-hole |
| Spokes | Wheelsmith stainless steel, 1.8mm straight gauge |
| Spoke Nipples | Brass nipples |
| Front Tire | 650 x 23c Continental Grand Prix kevlar |
| Wheel Size | 650c wheels |
Model-level measurements; the frame size was not recorded. Use these as a historical reference, not for size-specific fit.
Reference frame view
Select an available measurement to locate it on the frame.
| Measurement | Legacy reference |
|---|---|
| Top tube | 505 mm |
| Seat-tube angle | 75° |
| Chainstay / rear center | 420 mm |
The preserved source contains one model-level geometry set without an identified frame size.
Parts & serviceability

8 Speed
Replacement option · verify fit

27.2mm, 0mm offset, 350mm long
Replacement option · verify fit
Based on the original build. Confirm the model, size and fit before ordering; installed parts may differ. As an Amazon Associate I earn from qualifying purchases. Velopedia may also earn from qualifying eBay purchases. Velopedia may also earn from qualifying retailer purchases.
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.
Archived: 1998 Marinoni Piccola 105 · Road race & triathlon · Published sizes: 43 cm, 45 cm, custom
Archived: Frame: Lugged · Fork: Marinoni · Columbus SL, sloping crown
Archived: Group: Shimano 105SC · Shifters: Shimano 105SC STI Dual Control · Front derailleur: Shimano 105SC, bottom-pull/clamp-on 28.6mm · Rear derailleur: Shimano 105SC GS · Crankset: Shimano 105SC, 30/42/52 teeth · Bottom bracket: Shimano BB-UN52, 118mm spindle · Rear cogs: 8-speed, Buyer's choice of gearing · Chain: Shimano CN-HG70, 1/2 x 3/32"
Archived: Brakes: Shimano 105SC Dual Pivot brakes, Shimano 105SC levers
Archived: Wheel size: 650c wheels · Rims: Mavic CXP 12, 32-hole · Hubs: Shimano 105SC · Front tire: 650 x 23c Continental Grand Prix kevlar
Archived: Headset: 1" Shimano 105SC · Handlebar: TTT Forma 2 · Stem: TTT Synthesis · Seatpost: American Classic, 27.2mm diameter · Saddle: Selle Italia Flite · 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.