Velopedia Bicycle Archive
2002 Giant OCR-3
Original specifications: Shimano Sora Triple drivetrain · 700c wheels · legacy reference geometry.
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At a glance
- Model year
- 2002
- Category
- Road
- Original MSRP
- $550.00
- Sizes
- S, M, L
- Colors
- Silver/Yellow
- Geometry
- Legacy reference
- In this record
- 27 specifications · archived image · original MSRP · geometry
- Archive ID
- 91705
Original buildAluxx SL aluminum · Shimano Sora Triple · 700c wheels
Frameset
| Frame Construction | TIG-welded |
|---|---|
| Frame Material | Aluxx SL aluminum |
| Fork | Giant CroMo Straightblade |
| Fork Material | Chromoly, aero crown |
Drivetrain
| Component Group | Shimano Sora Triple |
|---|---|
| Shifters | Shimano Sora STI Dual Control |
| Front Derailleur | Shimano Sora, braze-on |
| Rear Derailleur | Shimano Sora GS |
| Crankset | Shimano Sora Triple, 30/42/52 teeth |
| Bottom Bracket | Sealed cartridge |
| BB Shell Width | 68mm English |
| Rear Cogs | 9-speed, 12 - 25 teeth |
| Chain | 1/2 x 3/32" |
| Pedals | Shimano PD-M505 SPD |
Brakes
| Brakes | Tektro dual pivot brakes, Shimano Sora STI Dual Control levers |
|---|
Cockpit & Contact Points
| Headset | 1" Aheadset |
|---|---|
| Handlebar | Anatomic drop bar |
| Handlebar Extensions | Not included |
| Stem | Giant Adjustable alloy |
| Saddle | Giant OCR |
| Seatpost | Aluminum micro-adjust, 27.2mm diameter |
Wheels & Tires
| Hubs | Aluminum, Q/R |
|---|---|
| Rims | Aluminum, double wall, 32-hole |
| Spokes | Stainless steel, 15ga. (1.8mm) straight gauge |
| Spoke Nipples | Brass nipples |
| Front Tire | 700 x 23c Hutchinson Flash |
| Wheel Size | 700c wheels |
Geometry
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 Use these as a historical reference, not for size-specific fit.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.
All geometry measurementsLegacy reference · 5 measurements
| Measurement | Legacy reference |
|---|---|
| Top tube | 555 mm |
| Head-tube angle | 73° |
| Seat-tube angle | 73.5° |
| Chainstay / rear center | 406.9 mm |
| Wheelbase | 980.9 mm |
The preserved source contains one model-level geometry set without an identified frame size.
Gearing
Lower ratios provide more mechanical advantage for climbing. Higher ratios turn the rear wheel farther with each crank revolution.
Parts & serviceability
Find replacement parts

Continental Gatorskin Clincher Tire Black, Folding Black, 700x23
700x23
Replacement option · verify fit
More parts (4)

Cervelo SP19 Carbon Seatpost Black, 27.2mm, 0mm offset, 350mm long
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.
Bike-specific inspection checklist 19 checks based on 5 archived component groups Open checklistClose checklist
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.
Identity and fit
Follow the full used-bike inspection order →Archived: 2002 Giant OCR-3 · Road race & triathlon · Published sizes: S, M, L
Frame and fork
Inspect the frame and fork →Archived: Frame: TIG-welded · Fork: Giant CroMo Straightblade · Chromoly, aero crown
Drivetrain
Check drivetrain wear →Archived: Group: Shimano Sora Triple · Shifters: Shimano Sora STI Dual Control · Front derailleur: Shimano Sora, braze-on · Rear derailleur: Shimano Sora GS · Crankset: Shimano Sora Triple, 30/42/52 teeth · Bottom bracket: Sealed cartridge · Rear cogs: 9-speed, 12 - 25 teeth · Chain: 1/2 x 3/32"
Brakes
Inspect the brakes →Archived: Brakes: Tektro dual pivot brakes, Shimano Sora STI Dual Control levers
Wheels and tires
Check wheels and tires →Archived: Wheel size: 700c wheels · Rims: Aluminum, double wall, 32-hole · Hubs: Aluminum, Q/R · Front tire: 700 x 23c Hutchinson Flash
Controls and contact points
Archived: Headset: 1" Aheadset · Handlebar: Anatomic drop bar · Stem: Giant Adjustable alloy · Seatpost: Aluminum micro-adjust, 27.2mm diameter · Saddle: Giant OCR · Pedals: Shimano PD-M505 SPD
Before and during the test ride
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Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.





