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
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Manufacturer catalog

Published sizes and colors

5 sizes · 2 colors

Manufacturer-published sizes and colors; availability and exact size/color pairings may vary by market or production run.

Published sizes

XSSML XLXXL

Published colors

Neon Blue/Cyan/YellowSatin Gloss/Charcoal/Black/Red

Frameset

Frame ConstructionSpecialized A1 Premium Aluminum, 29" geometry, ORE downtube, externally relieved headtube, forged dropouts w/ reinforced disc mount, replaceable alloy derailleur hanger
Frame MaterialAluminum
ForkSR Suntour XCT, alloy lowers, custom coil/MCU spring weights, Hi-Ten 28mm stanchions, 1-1/8" steerer, preload adjust, disc mount, 80mm travel
Fork MaterialSuspension

Drivetrain

Component GroupMountian mix
ShiftersShimano ST-EF51, w/ integrated brake lever
Front DerailleurShimano Altus, 3-speed, low mount, top swing, dual-pull
Rear DerailleurShimano Altus, 8-speed
CranksetForged alloy, square taper spindle, 42/32/22, w/ chainguard
Bottom BracketSquare taper, cartridge bearings
Rear CogsSunrace, 8-speed, 11-34
ChainKMC X8, 8-speed, reusable Missing Link
PedalsComposite platform, w/ reflectors, 9/16"

Brakes

BrakesTektro Aries, mechanical disc, organic pads

Cockpit & Contact Points

Headset1-1/8" threadless, loose ball
HandlebarSpecialized riser, Hi-Ten steel, 8-degree backsweep, 4-degree upsweep, 35mm rise, 25.4mm
StemSpecialized, forged alloy, 4-bolt, 10-degree rise
SaddleBody Geometry mountain, thick padding, steel rails, 143mm
SeatpostAlloy, 2-bolt, micro-adjust, 12.5mm offset, 27.2mm, anti-corrosion hardware

Wheels & Tires

HubsSpecialized Hi Lo disc, double rubber seal, QR, 36h, Specialized Hi Lo disc, double rubber seal, QR, 36h
Rims29" disc, alloy double-wall, pin joint, 36h
SpokesStainless, 14g, w/ brass nipple
Front TireSpecialized Fast Trak Sport, 30TPI, wire bead, Flak Jacket protection, 29x2.0", Specialized Fast Trak Sport, 30TPI, wire bead, Flak Jacket protection, 29x2.0"
Wheel Size29

Parts & serviceability

Find replacement parts

3 top part searches
ChainMatching fit standard
KMC X8, 8-speed, reusable Missing Link Exact archived model
Cassette / rear cogsQualified part search
Sunrace, 8-speed, 11-34 Component family — verify exact version
Front tireMatching fit standard
Specialized Fast Trak Sport, 30TPI, wire bead, Flak Jacket protection, 29x2.0", Specialized Fast Trak Sport, 30TPI, wire bead, Flak Jacket protection, 29x2.0" Named tire and published size
More qualified parts (4)
Front derailleurMatching configuration
Shimano Altus, 3-speed, low mount, top swing, dual-pull Interpreted as Shimano Altus · 8-speed Named component · published drivetrain speed — verify exact version
Rear derailleurMatching configuration
Shimano Altus, 8-speed Interpreted as Shimano Altus · 8-speed Component family — verify exact version
SeatpostMatching fit standard
27.2 mm seatpost Published diameter — verify length and setback
HubsQualified part search
Specialized Hi Lo disc, double rubber seal, QR, 36h, Specialized Hi Lo disc, double rubber seal, QR, 36h Named archived component — verify dimensions

Searches use the archived manufacturer specification, not the components currently installed on a particular bicycle. Confirm the exact model, size and fit before ordering. 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. Commercial relationships do not influence Archive specifications or analysis.

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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
0 of 20 checked Progress stays in this browser for this bike.

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.

Archived: 2015 Specialized Hardrock Disc 29 · Mountain Hardtail · Published sizes: XS, S, M, L XL, XXL

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

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

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

Archived: Brakes: Tektro Aries, mechanical disc, organic pads

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.

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