
Velopedia Bicycle Archive
2011 Specialized Hardrock Sport Disc 29
Original specifications: Mountain Mix drivetrain · 29" wheels.
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At a glance
- Model year
- 2011
- Category
- Mountain
- Sizes
- 15.5", 17.5", 19", 21", 23"
- Colors
- Blk, Wht/Brn
- In this record
- 31 specifications · archived image
- Archive ID
- 21990
Model history 4 other years
Frameset
| Frame Construction | TIG-welded |
|---|---|
| Frame Material | Specialized A1 Premium Aluminum |
| Fork | SR Suntour SF11, 80mm |
| Fork Material | Single |
| Rear Shock | N/A |
Drivetrain
| Component Group | Mountain Mix |
|---|---|
| Shifters | SRAM X.4 |
| Front Derailleur | Shimano Atlus, 34.9mm clamp |
| Rear Derailleur | SRAM X.4 |
| Crankset | SR Suntour, 22/32/42 teeth |
| Bottom Bracket | Shimano BB ES25 Octalink, 118mm spindle |
| BB Shell Width | 68mm |
| Cassette | SRAM PG-820 |
| Rear Cogs | 8-speed, 11 - 32 teeth |
| Chain | KMC X8 |
| Pedals | Composite platform |
Brakes
| Brakes | Avid BB5 mechanical disc brakes, Alloy levers |
|---|
Cockpit & Contact Points
| Headset | 1 1/8" threadless |
|---|---|
| Handlebar | Alloy rise |
| Handlebar Extensions | Not included |
| Stem | 3D Forged Alloy |
| Saddle | Specialized XC |
| Seatpost | Two-bolt Alloy Micro-Adjust, 30.9mm diameter |
Wheels & Tires
| Hubs | Front: Forged alloy hi/low flange, Rear: Forged alloy mid flange |
|---|---|
| Rims | Alex RHD 29", 36-hole |
| Spokes | Stainless, 14ga. (2.0mm) butted |
| Front Tire | 29 x 2.0" Specialized Fast Track LK Sport |
| Wheel Size | 29" wheels |
Parts & serviceability
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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 →
- BrakesMake sure both cables move freely and the calipers release cleanly. Check pad thickness, rotor wear and rotor alignment.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 8-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: 2011 Specialized Hardrock Sport Disc 29 · Mountain bike, front suspension · Published sizes: 15.5", 17.5", 19", 21", 23"
Frame and fork
Inspect the frame and fork →Archived: Frame: TIG-welded · Fork: SR Suntour SF11, 80mm · Single
Suspension
Evaluate the suspension →Archived: Fork: SR Suntour SF11, 80mm
Drivetrain
Check drivetrain wear →Archived: Group: Mountain Mix · Shifters: SRAM X.4 · Front derailleur: Shimano Atlus, 34.9mm clamp · Rear derailleur: SRAM X.4 · Crankset: SR Suntour, 22/32/42 teeth · Bottom bracket: Shimano BB ES25 Octalink, 118mm spindle · Cassette: SRAM PG-820 · Rear cogs: 8-speed, 11 - 32 teeth · Chain: KMC X8
Brakes
Inspect the brakes →Archived: Brakes: Avid BB5 mechanical disc brakes, Alloy levers
Wheels and tires
Check wheels and tires →Archived: Wheel size: 29" wheels · Rims: Alex RHD 29", 36-hole · Hubs: Front: Forged alloy hi/low flange, Rear: Forged alloy mid flange · Front tire: 29 x 2.0" Specialized Fast Track LK Sport
Controls and contact points
Archived: Headset: 1 1/8" threadless · Handlebar: Alloy rise · Stem: 3D Forged Alloy · Seatpost: Two-bolt Alloy Micro-Adjust, 30.9mm diameter · Saddle: Specialized XC · Pedals: Composite platform
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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Current market
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Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.




