Velopedia Bicycle Archive
2006 Norco Havoc
Original specifications: Shimano Alivio · 8-speed · mechanical rear derailleur · 26" wheels.
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At a glance
- Model year
- 2006
- Category
- Mountain
- Sizes
- S/M, M/L
- Colors
- Dark Brown
- In this record
- 23 specifications · archived image
- Archive ID
- 11556
Model history 6 other years
Original buildAluminum · Mountain Mix · 26" wheels
Frameset
| Frame Construction | TIG-welded |
|---|---|
| Frame Material | Aluminum |
| Fork | Marzocchi MZ-3, 100mm travel |
| Fork Material | Single |
Drivetrain
| Component Group | Mountain Mix |
|---|---|
| Shifters | SRAM SX-4 trigger |
| Rear Derailleur | Shimano Alivio |
| Crankset | Truvativ Ruktion, 24/34/42 teeth |
| Rear Cogs | 8-speed, 11 - 30 teeth |
| Chain | KMC Z72 |
| Pedals | Aluminum platform |
Brakes
| Brakes | Tektro 832 linear pull brakes, Tektro aluminum levers |
|---|
Cockpit & Contact Points
| Headset | CH-288 |
|---|---|
| Handlebar | Aluminum |
| Handlebar Extensions | Not included |
| Stem | Kalloy |
| Saddle | Axiom Dirt Jump |
| Seatpost | Aluminum micro-adjust, 27.2mm diameter |
Wheels & Tires
| Hubs | Front: DC-20, Rear: DC-22 |
|---|---|
| Rims | Strong BF-1, 36-hole |
| Spokes | Stainless steel, 14ga. (2.0mm) straight gauge |
| Front Tire | 26 x 2.10" MTB |
| Wheel Size | 26" wheels |
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

SRAM PC-850 Chain One Color, 8 Speed
8 Speed
Replacement option · verify fit
More parts (2)

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 20 checks based on 6 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: 2006 Norco Havoc · Mountain bike, front suspension · Published sizes: S/M, M/L
Frame and fork
Inspect the frame and fork →Archived: Frame: TIG-welded · Fork: Marzocchi MZ-3, 100mm travel · Single
Suspension
Evaluate the suspension →Archived: Fork: Marzocchi MZ-3, 100mm travel
Drivetrain
Check drivetrain wear →Archived: Group: Mountain Mix · Shifters: SRAM SX-4 trigger · Rear derailleur: Shimano Alivio · Crankset: Truvativ Ruktion, 24/34/42 teeth · Rear cogs: 8-speed, 11 - 30 teeth · Chain: KMC Z72
Brakes
Inspect the brakes →Archived: Brakes: Tektro 832 linear pull brakes, Tektro aluminum levers
Wheels and tires
Check wheels and tires →Archived: Wheel size: 26" wheels · Rims: Strong BF-1, 36-hole · Hubs: Front: DC-20, Rear: DC-22 · Front tire: 26 x 2.10" MTB
Controls and contact points
Archived: Headset: CH-288 · Handlebar: Aluminum · Stem: Kalloy · Seatpost: Aluminum micro-adjust, 27.2mm diameter · Saddle: Axiom Dirt Jump · Pedals: Aluminum platform
Before and during the test ride
Follow the full used-bike inspection order →Have you owned this bike?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.
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Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.





