Velopedia Bicycle Archive

2005 Giant OCR 2

Original specifications: Shimano 105 · 9-speed · mechanical rear derailleur · 700c wheels.

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At a glance

Model year
2005
Category
Road
Sizes
XS, S, M, L, XL
Colors
Gloss Black
In this record
27 specifications · archived image
Archive ID
92891
Model history 7 other years
Original buildALUXX aluminum · Road Mix Triple · 700c wheels

Manufacturer catalog

Published sizes and colors

5 sizes · 1 color

Manufacturer-published sizes and colors; availability and exact size/color pairings may vary by market or production run.

Published sizes

XSSMLXL

Published colors

Gloss Black

Frameset

Frame ConstructionTIG-welded
Frame MaterialALUXX aluminum
ForkFormulaOne
Fork MaterialCarbon fiber/aluminum steerer, aero crown

Drivetrain

Component GroupRoad Mix Triple
ShiftersShimano Tiagra STI Dual Control
Front DerailleurShimano Tiagra, braze-on
Rear DerailleurShimano 105 GS
CranksetTruVativ Touro, 30/42/52 teeth
Bottom BracketSealed cartridge, 113mm spindle
BB Shell Width68mm English
Rear Cogs9-speed, 12 - 26 teeth
Chain1/2 x 3/32"
PedalsShimano PD-M505 SPD

Brakes

BrakesDual pivot long-reach brakes, Shimano Tiagra STI Dual Control levers

Cockpit & Contact Points

Headset1 1/8" threadless integrated
HandlebarAnatomic drop bar
Handlebar ExtensionsNot included
StemAluminum
SaddleWTB Laser V Comp
SeatpostAluminum micro-adjust, 27.2mm diameter

Wheels & Tires

HubsAluminum, Q/R
RimsXero XSR-4, 20-hole/24-hole
SpokesStainless steel, 14ga. (2.0mm) straight gauge
Spoke NipplesBrass nipples
Front Tire700 x 25c Michelin Dynamic
Wheel Size700c wheels

Gearing

Chainring ÷ rear sprocket

Lower ratios provide more mechanical advantage for climbing. Higher ratios turn the rear wheel farther with each crank revolution.

Published build52/42/30T · 12–26T · 9-speed
Lowest1.15:1 Highest4.33:1 Total range376%
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Parts & serviceability

Find replacement parts

Original specifications
Front tire · Original
700 x 25c Michelin Dynamic
Pedals · Original
Shimano PD-M505 SPD
Saddle · Original
WTB Laser V Comp
More parts (4)
Front derailleur · Original
Shimano Tiagra, braze-on Search: Shimano Tiagra 9-speed mechanical front derailleur
Rear derailleur · Original
Shimano 105 GS Search: Shimano 105 9-speed mechanical rear derailleur
Shifters · Original
Shimano Tiagra STI Dual Control Search: Shimano Tiagra 9-speed mechanical shifter
Seatpost · Original
Aluminum micro-adjust, 27.2mm diameter

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.

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Bike-specific inspection checklist 19 checks based on 5 archived component groups Open checklistClose checklist
0 of 19 checked Progress stays in this browser for this bike.

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: 2005 Giant OCR 2 · Road/sport · Published sizes: XS, S, M, L, XL

Archived: Frame: TIG-welded · Fork: FormulaOne · Carbon fiber/aluminum steerer, aero crown

Archived: Group: Road Mix Triple · Shifters: Shimano Tiagra STI Dual Control · Front derailleur: Shimano Tiagra, braze-on · Rear derailleur: Shimano 105 GS · Crankset: TruVativ Touro, 30/42/52 teeth · Bottom bracket: Sealed cartridge, 113mm spindle · Rear cogs: 9-speed, 12 - 26 teeth · Chain: 1/2 x 3/32"

Archived: Brakes: Dual pivot long-reach brakes, Shimano Tiagra STI Dual Control levers

Archived: Wheel size: 700c wheels · Rims: Xero XSR-4, 20-hole/24-hole · Hubs: Aluminum, Q/R · Front tire: 700 x 25c Michelin Dynamic

Controls and contact points

Archived: Headset: 1 1/8" threadless integrated · Handlebar: Anatomic drop bar · Stem: Aluminum · Seatpost: Aluminum micro-adjust, 27.2mm diameter · Saddle: WTB Laser V Comp · Pedals: Shimano PD-M505 SPD

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Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.

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