Velopedia Bicycle Archive

2004 Norco Defender

Original manufacturer specifications including Mountain Mix drivetrain, 26" wheels.

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What Velopedia knows

Model year
2004
Category
Mountain
Sizes
15.5", 17", 18.5"
Colors
Gray
Record coverage
30 preserved details · archived image
Archive ID
30761

Manufacturer catalog

Published sizes and colors

3 sizes · 1 color

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

Published sizes

15.5"17"18.5"

Published colors

Gray

Frameset

Frame ConstructionTIG-welded
Frame MaterialHi-tensile steel
ForkSR Suntour M-5000
Fork MaterialAluminum, single crown
Rear ShockDynamount DV-6

Drivetrain

Component GroupMountain Mix
ShiftersShimano EF-29 EZ-Fire
Front DerailleurShimano C050
Rear DerailleurShimano TX-50
CranksetSR Suntour XCC-150PB, 24/34/42 teeth
Bottom BracketChin Haur CH-32
Rear Cogs7-speed, 14 - 28 teeth
ChainKMC Z50, 1/2 x 3/32"
PedalsVictor VP-872N

Brakes

BrakesAluminum linear-pull brakes, Shimano levers

Cockpit & Contact Points

Headset1 1/8" Victor VP-MH-501
HandlebarSteel, 1" rise
Handlebar ExtensionsNot included
StemSteel, quill
SaddleVelo VL-2016
SeatpostSteel, 28.6mm diameter

Wheels & Tires

HubsFront: Formula aluminum, Q/R, Rear: Formula, nutted
RimsStrong E, 36-hole
SpokesChung Nan UCP, 14ga. (2.0mm) straight gauge
Spoke NipplesBrass nipples
Front Tire26 x 1.95" Innova on/off road
Wheel Size26" wheels

Parts & serviceability

Find replacement parts

3 top part searches
ChainExact archived part
KMC Z50, 1/2 x 3/32" Exact archived model
Brake padsMatching fit standard
Linear-pull brake pads Published brake type — verify pad mounting style
SeatpostMatching fit standard
28.6 mm seatpost Published diameter — verify length and setback

Searches use the archived manufacturer specification, not the components currently installed on a particular bicycle. Confirm the exact model, size and fit before ordering. As an Amazon Associate I earn from qualifying purchases. Velopedia may also earn from qualifying eBay purchases. Commercial relationships do not influence Archive specifications or analysis.

Used-bike inspection

If you’re buying this bike used

Before any test ride: both brakes should stop the bike firmly and release cleanly; both wheels should run true and be securely attached; tires should have no casing damage; and the headset, handlebar, stem, cranks and pedals should have no looseness or play.

Follow the full used-bike inspection order →
  • FrameCheck paint chips, vent holes and the inside of the seat tube for corrosion. Also look for dents, bent tubes and cracking around welded or brazed joints.Inspect the frame and fork →
  • BrakesInspect pad condition, cable movement and the rim sidewalls or brake tracks for wear. A concave or heavily worn braking surface can mean the wheel also needs replacement.Inspect the brakes →
  • SuspensionAsk when the fork and shock were last serviced. Check the stanchions for damage, look for oil at the seals, cycle both units through their travel and test the suspension pivots for play.Evaluate the suspension →
  • DrivetrainShift through every gear under light load and measure chain wear. Confirm that the shifter, derailleur, chain and cassette belong to the same 7-speed system.Check drivetrain wear →
  • Wheels & tiresSpin both wheels and watch the rims for side-to-side or vertical movement. Check for dents, cracks, loose or uneven spokes and hub play, then inspect both tire casings for cuts, cracking or exposed threads.Check wheels and tires →
Bike-specific inspection checklist 22 checks based on 6 archived component groups Open checklistClose checklist
0 of 22 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: 2004 Norco Defender · Mountain bike, front & rear suspension · Published sizes: 15.5", 17", 18.5"

Archived: Frame: TIG-welded · Fork: SR Suntour M-5000 · Aluminum, single crown

Archived: Fork: SR Suntour M-5000 · Rear shock: Dynamount DV-6

Archived: Group: Mountain Mix · Shifters: Shimano EF-29 EZ-Fire · Front derailleur: Shimano C050 · Rear derailleur: Shimano TX-50 · Crankset: SR Suntour XCC-150PB, 24/34/42 teeth · Bottom bracket: Chin Haur CH-32 · Rear cogs: 7-speed, 14 - 28 teeth · Chain: KMC Z50, 1/2 x 3/32"

Archived: Brakes: Aluminum linear-pull brakes, Shimano levers

Archived: Wheel size: 26" wheels · Rims: Strong E, 36-hole · Hubs: Front: Formula aluminum, Q/R, Rear: Formula, nutted · Front tire: 26 x 1.95" Innova on/off road

Controls and contact points

Archived: Headset: 1 1/8" Victor VP-MH-501 · Handlebar: Steel, 1" rise · Stem: Steel, quill · Seatpost: Steel, 28.6mm diameter · Saddle: Velo VL-2016 · Pedals: Victor VP-872N

Before and during the test ride

Follow the full used-bike inspection order →

Build relationships are limited to the archived manufacturer specifications. Confirm exact fit and standards before ordering parts or performing service.

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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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