Estimate uses the published front tire 26×2 as a proxy, corroborated by the wheel size. Rear tire size is not published or verified. Approximate circumference; actual rollout varies with tire and pressure. Theoretical, not a maximum achievable speed.
Velopedia Bicycle Archive
2006 Specialized Rockhopper Pro Disc
Original specifications: Shimano Deore XT · 9-speed · mechanical rear derailleur · 26" wheels.
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At a glance
- Model year
- 2006
- Category
- Mountain
- Original MSRP
- $1,100.00
- Sizes
- 13", 15", 17", 19", 21"
- In this record
- 26 specifications · archived image · original MSRP
- Archive ID
- 11861
Model history 4 other years
Original buildA1 Premium Aluminum · Mountain Mix · 26" wheels
Frameset
| Frame Construction | TIG-welded |
|---|---|
| Frame Material | A1 Premium Aluminum |
| Fork | RockShox Recon 351SL, 100mm |
| Fork Material | Magnesium/aluminum/steel, single crown |
Drivetrain
| Component Group | Mountain Mix |
|---|---|
| Shifters | Shimano SL Deore, 9-speed |
| Front Derailleur | Shimano Deore, 34.9mm clamp, top swing, bottom pull |
| Rear Derailleur | Shimano Deore XT, long cage, standard spring |
| Crankset | Truvativ Fire-X GXB, external BB with alloy outer ring, 22/32 heat treated Cro-Mo/44 7075 aluminum teeth |
| Bottom Bracket | TruVativ GXP |
| Rear Cogs | 9-speed, 11 - 34 teeth |
| Chain | SRAM PC-951 with Power Link |
| Pedals | Alloy 1 piece body and cage |
Brakes
| Brakes | Avid BB-5, mechanical disc with 6" Roundagon rotor brakes, Avid FR-5 levers |
|---|
Cockpit & Contact Points
| Headset | 1 1/8" threadless, sealed ball retainer |
|---|---|
| Handlebar | Alloy, 25mm XC rise, double butted, 6 degree upsweep, 8 degree sweep, 620mm |
| Handlebar Extensions | Not included |
| Stem | Alloy 7 degree rise, TIG welded |
| Saddle | Specialized Body Geometry Sport MTB, semi light foam |
| Seatpost | Alloy micro-adjust |
Wheels & Tires
| Hubs | Front: Specialized disc, machined disc mount hi-low flange, Rear: Shimano 475 disc, |
|---|---|
| Rims | SUN DS2 disc, 32-hole |
| Spokes | Stainless steel, 15ga. (1.8mm) straight gauge |
| Spoke Nipples | Brass nipples |
| Front Tire | 26 x 2.00" Specialized Adrenaline Sport , dual compound, 60TPI aramid bead |
| Wheel Size | 26" wheels |
Gearing
Lower ratios provide more mechanical advantage for climbing. Higher ratios turn the rear wheel farther with each crank revolution.
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 Pro Disc · 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 Recon 351SL, 100mm · Magnesium/aluminum/steel, single crown
Suspension
Evaluate the suspension →Archived: Fork: RockShox Recon 351SL, 100mm
Drivetrain
Check drivetrain wear →Archived: Group: Mountain Mix · Shifters: Shimano SL Deore, 9-speed · Front derailleur: Shimano Deore, 34.9mm clamp, top swing, bottom pull · Rear derailleur: Shimano Deore XT, long cage, standard spring · Crankset: Truvativ Fire-X GXB, external BB with alloy outer ring, 22/32 heat treated Cro-Mo/44 7075 aluminum teeth · Bottom bracket: TruVativ GXP · Rear cogs: 9-speed, 11 - 34 teeth · Chain: SRAM PC-951 with Power Link
Brakes
Inspect the brakes →Archived: Brakes: Avid BB-5, mechanical disc with 6" Roundagon rotor brakes, Avid FR-5 levers
Wheels and tires
Check wheels and tires →Archived: Wheel size: 26" wheels · Rims: SUN DS2 disc, 32-hole · Hubs: Front: Specialized disc, machined disc mount hi-low flange, Rear: Shimano 475 disc, · Front tire: 26 x 2.00" Specialized Adrenaline Sport , dual compound, 60TPI aramid bead
Controls and contact points
Archived: Headset: 1 1/8" threadless, sealed ball retainer · Handlebar: Alloy, 25mm XC rise, double butted, 6 degree upsweep, 8 degree sweep, 620mm · Stem: Alloy 7 degree rise, TIG welded · Seatpost: Alloy micro-adjust · Saddle: Specialized Body Geometry Sport MTB, semi light foam · Pedals: Alloy 1 piece body and cage
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.


