
SRAM PC-850 Chain One Color, 8 Speed
8 Speed
Replacement option · verify fit
Velopedia Bicycle Archive
Original specifications: Shimano 105SC drivetrain · Buyer's choice wheels · 18 lb published weight.
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At a glance
| Frame Construction | Monocoque |
|---|---|
| Frame Material | Carbon fiber composite |
| Fork | Aegis Hot Rod |
| Fork Material | Carbon fiber composite, aero crown |
| Component Group | Shimano 105SC |
|---|---|
| Shifters | Shimano 105SC STI Dual Control |
| Front Derailleur | Shimano 105SC, bottom-pull/braze-on |
| Rear Derailleur | Shimano 105SC SS |
| Crankset | Shimano 105SC |
| Bottom Bracket | Shimano BB-UN52 |
| BB Shell Width | 68mm English |
| Rear Cogs | 8-speed, Buyer's choice of gearing |
| Chain | Shimano CN-IG51, 1/2 x 3/32" |
| Pedals | Not included |
| Brakes | Shimano 105SC Dual Pivot brakes, Shimano 105SC levers |
|---|
| Headset | 1" Shimano 105SC |
|---|---|
| Handlebar | Buyer's choice |
| Handlebar Extensions | Buyer's choice |
| Stem | Buyer's choice |
| Saddle | Buyer's choice |
| Seatpost | 26.8mm diameter |
| Hubs | Shimano 105SC |
|---|---|
| Rims | Buyer's choice |
| Spokes | Buyer's choice |
| Spoke Nipples | Buyer's choice |
| Front Tire | Buyer's choice |
| Wheel Size | Buyer's choice 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 Use these as a historical reference, not for size-specific fit.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 | 550 mm |
| Head-tube angle | 73° |
| Seat-tube angle | 66.5° |
| Chainstay / rear center | 407 mm |
| Wheelbase | 981 mm |
| Fork offset / rake | 45 mm |
The preserved source contains one model-level geometry set without an identified frame size.
Parts & serviceability

8 Speed
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 Aegis 700 Aro Svelte 4 · Road race & triathlon · Published sizes: 48 cm, 50 cm, 52 cm, 54 cm, 56 cm, 58 cm, 60 cm
Archived: Frame: Monocoque · Fork: Aegis Hot Rod · Carbon fiber composite, aero crown
Archived: Group: Shimano 105SC · Shifters: Shimano 105SC STI Dual Control · Front derailleur: Shimano 105SC, bottom-pull/braze-on · Rear derailleur: Shimano 105SC SS · Crankset: Shimano 105SC · Bottom bracket: Shimano BB-UN52 · Rear cogs: 8-speed, Buyer's choice of gearing · Chain: Shimano CN-IG51, 1/2 x 3/32"
Archived: Brakes: Shimano 105SC Dual Pivot brakes, Shimano 105SC levers
Archived: Wheel size: Buyer's choice wheels · Rims: Buyer's choice · Hubs: Shimano 105SC · Front tire: Buyer's choice
Archived: Headset: 1" Shimano 105SC · Handlebar: Buyer's choice · Stem: Buyer's choice · Seatpost: 26.8mm diameter · Saddle: Buyer's choice · 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.