
Velopedia Bicycle Archive
2006 Specialized Rockhopper Comp
Mountain bike, front suspension bicycle from the Velopedia specification archive.
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- Original MSRP
- $770.00
- Sizes
- 13", 15", 17", 19", 21"
- Archive ID
- 11858
Current market
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Velopedia analysis
What the specifications mean
The fork provides the documented suspension, so fork setup and rear-tire pressure are the main adjustments for balancing the two ends of the bike. The 309% cassette range describes the available gearing more clearly than the component-group name alone. On the alloy frame, dents and hairline cracks around welds matter more than cosmetic scratches. Pay closest attention near the head tube, bottom bracket shell, dropouts and other heavily loaded junctions.
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 →- FrameLook closely for dents and hairline cracks around welds, the head tube and bottom-bracket area. Cosmetic scratches matter less than a change in shape or a crack line.Inspect the frame and fork →
- BrakesTest each brake separately and confirm it stops firmly and releases cleanly. Inspect the pads and braking surfaces for wear or contamination, and check the cables or hoses for damage.Inspect the brakes →
- SuspensionAsk when the fork was last serviced. Check the stanchions for damage, look for oil at the seals and make sure the fork moves smoothly without bushing 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 9-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 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 Specialized Rockhopper Comp · Mountain bike, front suspension · Published sizes: 13", 15", 17", 19", 21"
Frame and fork
Inspect the frame and fork →Archived: Frame: TIG-welded · Fork: RockShox Tora 318 SL, 100mm · Magnesium/aluminum/steel, single crown
Suspension
Evaluate the suspension →Archived: Fork: RockShox Tora 318 SL, 100mm
Drivetrain
Check drivetrain wear →Archived: Group: Mountain Mix · Shifters: Shimano Deore SL, 9-speed · Front derailleur: Shimano Deore, 34.9mm clamp, top swing, bottom pull · Rear derailleur: Shimano LX, long cage · Crankset: Truvativ 5D w/alloy outer ring, 22t/32t heat treated Cro-Mo/44t 7075 aluminum teeth · Bottom bracket: TruVativ Power Spline, 113mm spindle · Rear cogs: 9-speed, 11 - 34 teeth · Chain: SRAM PC-951 with Power Link
Brakes
Inspect the brakes →Archived: Brakes: Avid SD-3, forged arm w/ 1pc pad brakes, Avid FR-5 levers
Wheels and tires
Check wheels and tires →Archived: Wheel size: 26" wheels · Rims: SUN MACH 4 L7, 32-hole · Hubs: Front: Specialized, double sealed w/alloy QR, Rear: Joy-Tech cassette, polished races and double sealed, 32h · Front tire: 26 x 2.00" Specialized Adrenaline Sport, wire bead
Controls and contact points
Archived: Headset: 1 1/8" threadless, sealed ball retainer · Handlebar: Alloy, 25mm rise, double butted, 6 degree upsweep, 8 degree sweep, 640mmwi · Stem: Alloy A-head forged and tig weldeded w/ two bolt clamp · Seatpost: Alloy micro adjust, 30.9mm diameter · Saddle: Specialized BG Sport MTB, light weight foam · Pedals: Alloy 1pc body and cage
Before and during the test ride
Follow the full used-bike inspection order →Interpretation based on the archived manufacturer specifications. Confirm exact fit and standards before ordering parts or performing service.
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Frameset
| Frame Construction | TIG-welded |
|---|---|
| Frame Material | A1 Premium Aluminum |
| Fork | RockShox Tora 318 SL, 100mm |
| Fork Material | Magnesium/aluminum/steel, single crown |
| Rear Shock | N/A |
Drivetrain
| Component Group | Mountain Mix |
|---|---|
| Shifters | Shimano Deore SL, 9-speed |
| Front Derailleur | Shimano Deore, 34.9mm clamp, top swing, bottom pull |
| Rear Derailleur | Shimano LX, long cage |
| Crankset | Truvativ 5D w/alloy outer ring, 22t/32t heat treated Cro-Mo/44t 7075 aluminum teeth |
| Bottom Bracket | TruVativ Power Spline, 113mm spindle |
| BB Shell Width | 68mm English |
| Rear Cogs | 9-speed, 11 - 34 teeth |
| Chain | SRAM PC-951 with Power Link |
| Pedals | Alloy 1pc body and cage |
Brakes
| Brakes | Avid SD-3, forged arm w/ 1pc pad brakes, Avid FR-5 levers |
|---|
Cockpit & Contact Points
| Headset | 1 1/8" threadless, sealed ball retainer |
|---|---|
| Handlebar | Alloy, 25mm rise, double butted, 6 degree upsweep, 8 degree sweep, 640mmwi |
| Handlebar Extensions | Not included |
| Stem | Alloy A-head forged and tig weldeded w/ two bolt clamp |
| Saddle | Specialized BG Sport MTB, light weight foam |
| Seatpost | Alloy micro adjust, 30.9mm diameter |
Wheels & Tires
| Hubs | Front: Specialized, double sealed w/alloy QR, Rear: Joy-Tech cassette, polished races and double sealed, 32h |
|---|---|
| Rims | SUN MACH 4 L7, 32-hole |
| Spokes | Stainless steel, 15ga. (1.8mm) straight gauge |
| Spoke Nipples | Brass nipples |
| Front Tire | 26 x 2.00" Specialized Adrenaline Sport, wire bead |
| Wheel Size | 26" wheels |
Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.



