Velopedia Bicycle Archive
2005 Specialized Hardrock Comp Disc
Original specifications: Shimano Alivio · 8-speed · mechanical rear derailleur · 26" wheels.
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At a glance
- Model year
- 2005
- Category
- Mountain
- Original MSRP
- $550.00
- Sizes
- XS, S, M, L, XL, XXL
- Colors
- Red, Silver
- In this record
- 26 specifications · archived image · original MSRP
- Archive ID
- 10605
Model history 4 other years
Original buildA1 Premium Aluminum · Mountain Mix · 26" wheels
Frameset
| Frame Construction | TIG-welded |
|---|---|
| Frame Material | A1 Premium Aluminum |
| Fork | Marzocchi MZ Comp, 100mm |
| Fork Material | Aluminum/magnesium, single crown |
Drivetrain
| Component Group | Mountain Mix |
|---|---|
| Shifters | Shimano Acera |
| Front Derailleur | Shimano Acera, bottom-pull/clamp-on 31.8mm |
| Rear Derailleur | Shimano Alivio |
| Crankset | TruVativ IsoFlow, 22/32/42 teeth |
| Bottom Bracket | TruVativ, 113mm spindle |
| BB Shell Width | 68mm English |
| Rear Cogs | 8-speed, 11 - 30 teeth |
| Chain | Shimano CN-IG31, 1/2 x 3/32" |
| Pedals | Steel cage |
Brakes
| Brakes | Hayes HMX-II brakes, Shimano Acera levers |
|---|
Cockpit & Contact Points
| Headset | 1 1/8" threadless sealed cartridge |
|---|---|
| Handlebar | Aluminum |
| Stem | Specialized Mobius |
| Saddle | Specialized BG Sport ATB |
| Seatpost | Aluminum micro-adjust, 30.9mm diameter |
Wheels & Tires
| Hubs | Joytech QR |
|---|---|
| Rims | Alex DP-20, 36-hole |
| Spokes | Stainless steel, 14ga. (2.0mm) straight gauge |
| Spoke Nipples | Brass nipples |
| Front Tire | 26 x 2.20" Specialized Enduro Sport |
| 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 (5)

ENVE Twin Bolt Seatpost - Zero Offset UD Carbon, 30.9x400mm
30.9x400mm
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: 2005 Specialized Hardrock Comp Disc · Mountain bike, front suspension · Published sizes: XS, S, M, L, XL, XXL
Frame and fork
Inspect the frame and fork →Archived: Frame: TIG-welded · Fork: Marzocchi MZ Comp, 100mm · Aluminum/magnesium, single crown
Suspension
Evaluate the suspension →Archived: Fork: Marzocchi MZ Comp, 100mm
Drivetrain
Check drivetrain wear →Archived: Group: Mountain Mix · Shifters: Shimano Acera · Front derailleur: Shimano Acera, bottom-pull/clamp-on 31.8mm · Rear derailleur: Shimano Alivio · Crankset: TruVativ IsoFlow, 22/32/42 teeth · Bottom bracket: TruVativ, 113mm spindle · Rear cogs: 8-speed, 11 - 30 teeth · Chain: Shimano CN-IG31, 1/2 x 3/32"
Brakes
Inspect the brakes →Archived: Brakes: Hayes HMX-II brakes, Shimano Acera levers
Wheels and tires
Check wheels and tires →Archived: Wheel size: 26" wheels · Rims: Alex DP-20, 36-hole · Hubs: Joytech QR · Front tire: 26 x 2.20" Specialized Enduro Sport
Controls and contact points
Archived: Headset: 1 1/8" threadless sealed cartridge · Handlebar: Aluminum · Stem: Specialized Mobius · Seatpost: Aluminum micro-adjust, 30.9mm diameter · Saddle: Specialized BG Sport ATB · Pedals: Steel 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.
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Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.



