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Today’s DealsRockhopper Comp Disc 29
A 29″ aluminum frame hardtail crosscountry bike with mid-range components and avid mechanical disc brakes.
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| Frame | Aluminum |
|---|---|
| Suspension | Hardtail, 80mm |
| Fork | RockShox |
| Wheels | 29″ Aluminum |
| Drivetrain | 3 × 8 |
| Groupset | X5, X4 |
| Brakes | Avid Mechanical Disc |

Dec 2011 · Danny Milner
Few companies have as much experience building hardtails as Specialized. The 2011 Rockhopper proves that it has still got what it takes to build a great one.

Jan 2011 · James Huang
Specialized’s Rockhopper Comp 29er will be appreciated by bigger riders and racers as it’s one of the stiffest bikes on test, both in terms of steering and pedaling.
| Frame | Specialized M4 fully manipulated alloy frame, fully butted, Trail 29"" geometry, ORE DT, externally relieved HT, 2-piece forged adjustable slider dropouts, disc only |
|---|---|
| Fork | RockShox Dart 3 SL for 29"" wheel, 80mm, 1 piece magnesium lower, alloy steerer, adj. reb. damping w/ LO and preload adj. size-specific spring rates, spring assisted seal, disc only Travel: 80mm Spring Type: Coil |
| Bottom Bracket | Shimano BB-ES25, Octalink spline, cartridge bearing, 68mm x 118mm |
| Headset | 1-1/8"" threadless, loose ball |
| Stem | 3D forged alloy, 7 degree rise, 31.8mm clamp |
| Handlebar | Butted alloy riserbar, 25mm rise, 660mm wide, 8 degree back sweep, 7 degree up sweep |
| Saddle | Specialized Rockhopper XC, Body Geometry, 143mm width, front and rear bumpers |
| Seatpost | Alloy two bolt, 12.5mm offset, micro adjust, 30.9mm Type: Rigid |
| Pedals | Steel cage, composite body, 9/16"" |
| Grips | Specialized Enduro, dual compound Kraton, no flange, 131mm |
| Rear Derailleur | SRAM X-5, mid cage |
|---|---|
| Front Derailleur | Shimano Altus, 34.9mm clamp |
| Crank | SR SunTour, Octalink spline |
| Shifters | SRAM X4-R trigger |
| Cassette | SRAM PG-830, 8-speed, 11-32t |
| Chain | KMC X8 w/ reuseable Missing Link |
| Brakes | Front: Avid BB5, mechanical disc, 160mm G2 Clean Sweep rotor, Rear: Avid BB5, mechanical disc, 160mm G2 Clean Sweep rotor Type: Avid Mechanical Disc |
| Brake Levers | Avid FR-5, alloy, two-finger linear pull |
| Rims | Alex RHD 29"", pinned, alloy double wall, eyelets, 28h front and 32h rear |
|---|---|
| Spokes | 2mm (14g) stainless |
| Front Hub | Forged alloy, hi/low flange, double sealed, ground race, machined disc mount, 32h |
| Rear Hub | Forged alloy, double sealed, ground race, machined disc mount, cassette, 32h |
| Tires | Front: Specialized Fast Trak LK Sport, 29x2.0"", 60TPI, wire bead, Rear: Specialized Fast Trak LK Sport, 29x2.0"", 60TPI, wire bead |
First added July 9
Last updated July 9
Not listed for 2,521 days