Velopedia Bicycle Archive
2015 Specialized Rockhopper 29
Original specifications: Mountian mix drivetrain · 29 wheels.
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At a glance
- Model year
- 2015
- Category
- Mountain
- Original MSRP
- $700.00
- Sizes
- S, M, L, XL, XXL
- Colors
- Gloss White/Black, Gloss Charcoal/Black/Hyper
- In this record
- 24 specifications · original MSRP
- Archive ID
- 1096004
Model history 3 other years
Frameset
| Frame Construction | Specialized A1 Premium Aluminum, 29er geometry ORE downtube, butted tubesets, externally relieved headtube, forged dropouts, reinforced disc mount, replaceable alloy derailleur hanger |
|---|---|
| Frame Material | Aluminum |
| Fork | Custom SR Suntour XCT 29, w/ custom Multi-Circuit Damping, alloy lowers, coil/MCU spring, Hi-Ten 28mm stanchions, 1-1/8" steerer, hydraulic lockout w/ preload adjust, disc mount, 100mm travel |
| Fork Material | Suspension |
Drivetrain
| Component Group | Mountian mix |
|---|---|
| Shifters | Shimano Altus Rapidfire Plus, SL type, w/ optical display |
| Front Derailleur | Shimano Altus, high mount, bottom swing, dual-pull |
| Rear Derailleur | Shimano Acera, 8-speed, SGS cage |
| Crankset | Specialized Stout, forged alloy, 8-speed, 42/32/22, square taper spindle |
| 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 Auriga, hydraulic disc, resin/metallic pads |
|---|
Cockpit & Contact Points
| Headset | 1-1/8" upper/lower, Zerostack 44, steel cups, loose ball bearings |
|---|---|
| Handlebar | Specialized flat, 6061 double butted alloy, 10-degree backsweep, 4-degree upsweep, 31.8mm |
| Stem | Specialized 3D forged alloy, 4-bolt, 7-degree rise, anti-corrosion hardware |
| Saddle | Body Geometry mountain, steel rails, 143mm |
| Seatpost | Alloy, 2-bolt, micro-adjust, 12.5mm offset, 30.9mm, anti-corrosion hardware |
Wheels & Tires
| Hubs | Specialized Hi Lo disc, alloy double-sealed, ground race, QR, 32h, Specialized Hi Lo disc, alloy, double-sealed, loose ball bearings, QR, 32h |
|---|---|
| Rims | 29" disc, alloy double-wall, pin joint, 25mm inner width, 36h |
| Spokes | Stainless, 14g, w/ brass nipple |
| Front Tire | Specialized Ground Control Sport, 60TPI, wire bead, 29x2.1", Specialized Ground Control Sport, 60TPI, wire bead, 29x2.1" |
| Wheel Size | 29 |
Published drivetrain ratios
Gearing
Lower ratios provide more mechanical advantage for climbing. Higher ratios turn the rear wheel farther with each crank revolution.
The bar uses the same mechanical-ratio calculation as Compare. Wheel-dependent speed appears only when the record includes an exact ISO/ETRTO rear tire size; no tire size is assumed.
Parts & serviceability
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More qualified parts (6)
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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 Rockhopper 29 · Mountain Hardtail · Published sizes: S, M, L, XL, XXL
Frame and fork
Inspect the frame and fork →Archived: Frame: Specialized A1 Premium Aluminum, 29er geometry ORE downtube, butted tubesets, externally relieved headtube, forged dropouts, reinforced disc mount, replaceable alloy derailleur hanger · Fork: Custom SR Suntour XCT 29, w/ custom Multi-Circuit Damping, alloy lowers, coil/MCU spring, Hi-Ten 28mm stanchions, 1-1/8" steerer, hydraulic lockout w/ preload adjust, disc mount, 100mm travel · Suspension
Suspension
Evaluate the suspension →Archived: Fork: Custom SR Suntour XCT 29, w/ custom Multi-Circuit Damping, alloy lowers, coil/MCU spring, Hi-Ten 28mm stanchions, 1-1/8" steerer, hydraulic lockout w/ preload adjust, disc mount, 100mm travel
Drivetrain
Check drivetrain wear →Archived: Group: Mountian mix · Shifters: Shimano Altus Rapidfire Plus, SL type, w/ optical display · Front derailleur: Shimano Altus, high mount, bottom swing, dual-pull · Rear derailleur: Shimano Acera, 8-speed, SGS cage · Crankset: Specialized Stout, forged alloy, 8-speed, 42/32/22, square taper spindle · 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 Auriga, hydraulic disc, resin/metallic pads
Wheels and tires
Check wheels and tires →Archived: Wheel size: 29 · Rims: 29" disc, alloy double-wall, pin joint, 25mm inner width, 36h · Hubs: Specialized Hi Lo disc, alloy double-sealed, ground race, QR, 32h, Specialized Hi Lo disc, alloy, double-sealed, loose ball bearings, QR, 32h · Front tire: Specialized Ground Control Sport, 60TPI, wire bead, 29x2.1", Specialized Ground Control Sport, 60TPI, wire bead, 29x2.1"
Controls and contact points
Archived: Headset: 1-1/8" upper/lower, Zerostack 44, steel cups, loose ball bearings · Handlebar: Specialized flat, 6061 double butted alloy, 10-degree backsweep, 4-degree upsweep, 31.8mm · Stem: Specialized 3D forged alloy, 4-bolt, 7-degree rise, anti-corrosion hardware · Seatpost: Alloy, 2-bolt, micro-adjust, 12.5mm offset, 30.9mm, anti-corrosion hardware · Saddle: Body Geometry mountain, steel rails, 143mm · Pedals: Composite platform, w/ reflectors, 9/16"
Before and during the test ride
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Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.




