Estimate uses the published front tire 26×2.2 as a proxy, corroborated by the wheel size. Rear tire size is not published or verified. Approximate circumference; actual rollout varies with tire and pressure. Theoretical, not a maximum achievable speed.
Velopedia Bicycle Archive
2006 Specialized Hardrock Sport Disc
Original specifications: SRAM SX · 8-speed · mechanical rear derailleur · 26" wheels.
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At a glance
- Model year
- 2006
- Category
- Mountain
- Original MSRP
- $500.00
- Sizes
- XS, S, M, L, XL, XXL
- In this record
- 27 specifications · archived image · original MSRP
- Archive ID
- 11843
Model history 6 other years
Original buildA1 Premium Aluminum · SRAM Mix · 26" wheels
Frameset
| Frame Construction | TIG-welded |
|---|---|
| Frame Material | A1 Premium Aluminum |
| Fork | RST Gilla Plus-T6, 100mm |
| Fork Material | Steel/aluminum, single crown |
Drivetrain
| Component Group | SRAM Mix |
|---|---|
| Shifters | SRAM SX-4 trigger, 8-speed |
| Front Derailleur | SRAM 3.0, 34.9mm clamp, top swing, botttom pull |
| Rear Derailleur | SRAM SX-4, 8-speed, mid cage |
| Crankset | Truvative X-Flow, Power Spline, alloy, capless bolts, 22t/32t heat treated Cro-Mo/42t Cro-Mo teeth |
| Bottom Bracket | Truvativ Power Spline, 113mm spindle |
| BB Shell Width | 68mm English |
| Rear Cogs | 9-speed, 11 - 32 teeth |
| Chain | Shimano CN-IG31 |
| Pedals | Dual sided, composite body, steel cage, toe clip compatible |
Brakes
| Brakes | Tektro IO, mechanical disc, 6" rotor brakes, Tektro RS-360 levers |
|---|
Cockpit & Contact Points
| Headset | 1 1/8" threadless, sealed ball retainer |
|---|---|
| Handlebar | Alloy, 38mm rise, 6 degree upsweep, 8 degree sweep, 640mm width |
| Handlebar Extensions | Not included |
| Stem | Specialized Mobius, alloy, 10 degree rise |
| Saddle | Specialized Specialized Body Geometry Sport ATB |
| Seatpost | Alloy micro adjust, 30.9mm diameter |
Wheels & Tires
| Hubs | Front: Joy-Tech, disc, ground race double sealed loose ball w/ alloy QR, Rear: Joy-Tech, disc cassette, ground race double sealed loose ball |
|---|---|
| Rims | Alex DP-20 disc, 36-hole |
| Spokes | Stainless steel, 14ga. (2.0mm) straight gauge |
| Spoke Nipples | Brass nipples |
| Front Tire | 26 x 2.20" Specialized Enduro Sport, wire bead |
| 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
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Bike-specific inspection checklist 21 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: 2006 Specialized Hardrock Sport 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: RST Gilla Plus-T6, 100mm · Steel/aluminum, single crown
Suspension
Evaluate the suspension →Archived: Fork: RST Gilla Plus-T6, 100mm
Drivetrain
Check drivetrain wear →Archived: Group: SRAM Mix · Shifters: SRAM SX-4 trigger, 8-speed · Front derailleur: SRAM 3.0, 34.9mm clamp, top swing, botttom pull · Rear derailleur: SRAM SX-4, 8-speed, mid cage · Crankset: Truvative X-Flow, Power Spline, alloy, capless bolts, 22t/32t heat treated Cro-Mo/42t Cro-Mo teeth · Bottom bracket: Truvativ Power Spline, 113mm spindle · Rear cogs: 9-speed, 11 - 32 teeth · Chain: Shimano CN-IG31
Brakes
Inspect the brakes →Archived: Brakes: Tektro IO, mechanical disc, 6" rotor brakes, Tektro RS-360 levers
Wheels and tires
Check wheels and tires →Archived: Wheel size: 26" wheels · Rims: Alex DP-20 disc, 36-hole · Hubs: Front: Joy-Tech, disc, ground race double sealed loose ball w/ alloy QR, Rear: Joy-Tech, disc cassette, ground race double sealed loose ball · Front tire: 26 x 2.20" Specialized Enduro Sport, wire bead
Controls and contact points
Archived: Headset: 1 1/8" threadless, sealed ball retainer · Handlebar: Alloy, 38mm rise, 6 degree upsweep, 8 degree sweep, 640mm width · Stem: Specialized Mobius, alloy, 10 degree rise · Seatpost: Alloy micro adjust, 30.9mm diameter · Saddle: Specialized Specialized Body Geometry Sport ATB · Pedals: Dual sided, composite body, steel cage, toe clip compatible
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.




