Velopedia Bicycle Archive

2006 Giant OCR 3 x05

Original specifications: Shimano Sora · 8-speed · mechanical rear derailleur · 700c wheels.

Share owner experience

Planning to sell? Draft your listing

At a glance

Archive #94327
Model year
2006
Category
Road
Original MSRP
$600.00
Sizes
XS, S, M, L, XL
Colors
Corsa Red, Cloud Blue
In this record
27 specifications · archived image · original MSRP
Campaign
Original buildALUXX aluminum · Road Mix Triple · 700c wheels

Historical catalog variants

Archived sizes and colors

10 item records

Item-level catalog entries recovered from Velopedia’s original bicycle archive. They document how this model was listed historically; they do not identify the frame size associated with legacy reference geometry or indicate current availability.

Published sizes

XSSMLXL

Published colors

Corsa RedCloud Blue
View 10 archived size/color combinations
SizeColor
XSCorsa Red
SCorsa Red
MCorsa Red
LCorsa Red
XLCorsa Red
XSCloud Blue
SCloud Blue
MCloud Blue
LCloud Blue
XLCloud Blue

Historical catalog evidence. Exact specifications and naming may vary by market, production run or manufacturer revision.

Frameset

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

Drivetrain

Component GroupRoad Mix Triple
ShiftersShimano Sora STI Dual Control
Front DerailleurShimano Sora, braze-on
Rear DerailleurShimano Sora GS
CranksetTruvativ Touro, 30/42/52 teeth
Bottom BracketTruvativ BB7420, 113mm spindle
BB Shell Width68mm English
Rear Cogs8-speed, 12 - 26 teeth
ChainKMC Z72, 1/2 x 3/32"
PedalsSteel cage, resin body

Brakes

BrakesTektro dual pivot brakes, Shimano Sora STI Dual Control levers

Cockpit & Contact Points

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

Wheels & Tires

HubsAluminum, Q/R
RimsAlex DA-22, 32-hole
SpokesStainless steel, 14ga. (2.0mm) straight gauge
Spoke NipplesBrass nipples
Front Tire700 x 25c Michelin Dynamic
Wheel Size700c wheels

Gearing

Lower gears help on climbs. Higher gears suit higher speeds.

RPM

RPM = pedal turns per minute.

All published sizes52/42/30T · 12–26T · 8-speed
Lowest1.15:1 Highest4.33:1 Total range376%
Estimated speed At 90 RPM Lowest gear8.2 mph Highest gear30.7 mph

Uses front tire 700C×25; rear size isn’t listed.

How it works

Ratio = front teeth ÷ rear teeth. Hub gears also include the hub’s internal ratio. A 400% range means the highest ratio is four times the lowest.

Speeds are estimates from tire size and pedal cadence. Actual speeds vary.

Try other gearing

Try your current gearingChanged tires or gears? Calculate your setup.

Your changes apply to this calculation. The archived build stays unchanged.

Your gearing setup
Gears

Use up to three front tooth counts, separated by /. For one rear sprocket, enter the same count twice.

Rear tire

Apply the marking on your rear tire or edit its dimensions below. Older or fractional inch sizes need the ISO marking (e.g. 37-590).

For 32-622, width is 32 mm and rim diameter is 622 mm. Use the rear tire on mixed-wheel bikes. Leave both fields empty to compare ratios only.

Gear, dimension and cadence changes update results automatically.

Speeds are estimates. These calculations do not establish component compatibility or available tire clearance.

Parts & serviceability

Find replacement parts

Original specifications
Chain · Original
KMC Z72

1/2 x 3/32"

Retailer offers
Front tire · Original
700 x 25c Michelin Dynamic
Retailer offers
Seatpost · Original
Aluminum micro-adjust

27.2mm diameter

Retailer offers
More parts (5)Fewer parts
Saddle · Original
WTB Laser V Comp
Front derailleur · Original
Shimano Sora

braze-on

Rear derailleur · Original
Shimano Sora GS
Shifters · Original
Shimano Sora STI Dual Control
Rims · Original
Alex DA-22

32-hole

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.

Service essentialsQuick reference before buying parts

Archived specifications for reference. Check the fitted parts before ordering.

Front tire
700 x 25c Michelin DynamicCheck: Verify the fitted tire’s size marking and rim type.
Drivetrain
8-speedCheck: Match the installed drivetrain family, not just its speed count.
Seatpost diameter
27.2 mmCheck: Read the post’s diameter marking; seat-clamp size differs.
Bottom bracket / shell
Truvativ BB7420, 113mm spindle · 68mm EnglishCheck: Verify shell type and width, crank interface, and spindle length or spacers.

Not confirmed in this record: Rear tire. Check the fitted parts for these details.

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 record.

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: 2006 Giant OCR 3 x05 · 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 Sora STI Dual Control · Front derailleur: Shimano Sora, braze-on · Rear derailleur: Shimano Sora GS · Crankset: Truvativ Touro, 30/42/52 teeth · Bottom bracket: Truvativ BB7420, 113mm spindle · Rear cogs: 8-speed, 12 - 26 teeth · Chain: KMC Z72, 1/2 x 3/32"

Archived: Brakes: Tektro dual pivot brakes, Shimano Sora STI Dual Control levers

Archived: Wheel size: 700c wheels · Rims: Alex DA-22, 32-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: Giant Adjustable alloy · Seatpost: Aluminum micro-adjust, 27.2mm diameter · Saddle: WTB Laser V Comp · Pedals: Steel cage, resin body

Before and during the test ride

Follow the full used-bike inspection order →

My Garage

Velopedia

Enter your email and Velopedia will send a private sign-in link. No password required.

Have you owned this model?Help document firsthand fit, ride and maintenance details that may no longer be available.

This archive record has limited published detail. Share what would help another rider understand how this model fit, rode and held up over time. Velopedia reviews every contribution before publication.

Add fit, maintenance and buyer detailsOptional · five additional fields

Your contribution goes directly to Velopedia’s private review queue. We’ll email an optional confirmation link plus a private edit and withdrawal link, but you do not need to confirm your email before an administrator can review or approve the submission.

Already contributed? Send me a fresh private edit link

For privacy, Velopedia shows the same confirmation whether or not an experience exists.

Find this bike on eBay

Search eBay US; check the model year, size and installed components. We may earn a commission from purchases.

Campaign

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

Scroll to Top