
Velopedia Bicycle Archive
2015 Specialized Hardrock Disc 29
Original specifications: Mountian mix drivetrain · 29 wheels.
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At a glance
- Model year
- 2015
- Category
- Mountain
- Original MSRP
- $560.00
- Sizes
- XS, S, M, L XL, XXL
- Colors
- Neon Blue/Cyan/Yellow, Satin Gloss/Charcoal/Black/Red
- In this record
- 28 specifications · original MSRP
- Archive ID
- 1267721
Model history 4 other years
Frameset
| Frame Construction | Specialized A1 Premium Aluminum, 29" geometry, ORE downtube, externally relieved headtube, forged dropouts w/ reinforced disc mount, replaceable alloy derailleur hanger |
|---|---|
| Frame Material | Aluminum |
| Fork | SR Suntour XCT, alloy lowers, custom coil/MCU spring weights, Hi-Ten 28mm stanchions, 1-1/8" steerer, preload adjust, disc mount, 80mm travel |
| Fork Material | Suspension |
Drivetrain
| Component Group | Mountian mix |
|---|---|
| Shifters | Shimano ST-EF51, w/ integrated brake lever |
| Front Derailleur | Shimano Altus, 3-speed, low mount, top swing, dual-pull |
| Rear Derailleur | Shimano Altus, 8-speed |
| Crankset | Forged alloy, square taper spindle, 42/32/22, w/ chainguard |
| Bottom Bracket | Square taper, cartridge bearings |
| Rear Cogs | Sunrace, 8-speed, 11-34 |
| Chain | KMC X8, 8-speed, reusable Missing Link |
| Pedals | Composite platform, w/ reflectors, 9/16" |
Brakes
| Brakes | Tektro Aries, mechanical disc, organic pads |
|---|
Cockpit & Contact Points
| Headset | 1-1/8" threadless, loose ball |
|---|---|
| Handlebar | Specialized riser, Hi-Ten steel, 8-degree backsweep, 4-degree upsweep, 35mm rise, 25.4mm |
| Stem | Specialized, forged alloy, 4-bolt, 10-degree rise |
| Saddle | Body Geometry mountain, thick padding, steel rails, 143mm |
| Seatpost | Alloy, 2-bolt, micro-adjust, 12.5mm offset, 27.2mm, anti-corrosion hardware |
Wheels & Tires
| Hubs | Specialized Hi Lo disc, double rubber seal, QR, 36h, Specialized Hi Lo disc, double rubber seal, QR, 36h |
|---|---|
| Rims | 29" disc, alloy double-wall, pin joint, 36h |
| Spokes | Stainless, 14g, w/ brass nipple |
| Front Tire | Specialized Fast Trak Sport, 30TPI, wire bead, Flak Jacket protection, 29x2.0", Specialized Fast Trak Sport, 30TPI, wire bead, Flak Jacket protection, 29x2.0" |
| Wheel Size | 29 |
Parts & serviceability
Find replacement parts
More qualified parts (4)
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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 3-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: 2015 Specialized Hardrock Disc 29 · Mountain Hardtail · Published sizes: XS, S, M, L XL, XXL
Frame and fork
Inspect the frame and fork →Archived: Frame: Specialized A1 Premium Aluminum, 29" geometry, ORE downtube, externally relieved headtube, forged dropouts w/ reinforced disc mount, replaceable alloy derailleur hanger · Fork: SR Suntour XCT, alloy lowers, custom coil/MCU spring weights, Hi-Ten 28mm stanchions, 1-1/8" steerer, preload adjust, disc mount, 80mm travel · Suspension
Suspension
Evaluate the suspension →Archived: Fork: SR Suntour XCT, alloy lowers, custom coil/MCU spring weights, Hi-Ten 28mm stanchions, 1-1/8" steerer, preload adjust, disc mount, 80mm travel
Drivetrain
Check drivetrain wear →Archived: Group: Mountian mix · Shifters: Shimano ST-EF51, w/ integrated brake lever · Front derailleur: Shimano Altus, 3-speed, low mount, top swing, dual-pull · Rear derailleur: Shimano Altus, 8-speed · Crankset: Forged alloy, square taper spindle, 42/32/22, w/ chainguard · Bottom bracket: Square taper, cartridge bearings · Rear cogs: Sunrace, 8-speed, 11-34 · Chain: KMC X8, 8-speed, reusable Missing Link
Brakes
Inspect the brakes →Archived: Brakes: Tektro Aries, mechanical disc, organic pads
Wheels and tires
Check wheels and tires →Archived: Wheel size: 29 · Rims: 29" disc, alloy double-wall, pin joint, 36h · Hubs: Specialized Hi Lo disc, double rubber seal, QR, 36h, Specialized Hi Lo disc, double rubber seal, QR, 36h · Front tire: Specialized Fast Trak Sport, 30TPI, wire bead, Flak Jacket protection, 29x2.0", Specialized Fast Trak Sport, 30TPI, wire bead, Flak Jacket protection, 29x2.0"
Controls and contact points
Archived: Headset: 1-1/8" threadless, loose ball · Handlebar: Specialized riser, Hi-Ten steel, 8-degree backsweep, 4-degree upsweep, 35mm rise, 25.4mm · Stem: Specialized, forged alloy, 4-bolt, 10-degree rise · Seatpost: Alloy, 2-bolt, micro-adjust, 12.5mm offset, 27.2mm, anti-corrosion hardware · Saddle: Body Geometry mountain, thick padding, steel rails, 143mm · Pedals: Composite platform, w/ reflectors, 9/16"
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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Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.



