
Specialized Rockhopper Base Bike 2026 Obsidian/Dune White
Premium A1 Aluminum forms the foundation, with butted alloy tubing and hydroformed top and downtubes balancing low weight with long-term durability. Size-specific wheel pairing and Rx Tune suspension keep geometry, handling, and suspension performance consistent across all frame sizes, while internal cable routing and dropper post compatibility support clean integration.
Specialized Rockhopper Base Bike pairs the Specialized Rockhopper platform with dependable components for confident trail control. A Shimano Altus 2x9 drivetrain delivers crisp shifting across varied terrain, while Tektro HD-M280 hydraulic disc brakes provide reliable stopping power. Size-specific SR Suntour suspension and wide 25mm rims complete a capable, performance-driven hardtail package.
Key Features
- Premium A1 Aluminum Frame: Specialized A1 premium butted alloy frame with hydroformed tubes, internal cable routing, 135x9mm forged dropouts, chainstay-mounted disc brake, replaceable alloy derailleur hanger, stealth rack mounts, and dropper post compatibility.
- Size-Specific Wheel Pairing: Frame sizes matched with optimal 26in, 27.5in, or 29in wheels to ensure consistent handling and fit.
- SR Suntour XCE Fork: Coil-sprung suspension fork with 28mm stanchions, QR axle, and size-specific 80mm, 90mm, or 100mm travel with 42mm offset.
- Shimano Altus 2x9 Drivetrain: Shimano Altus front and rear derailleurs, RapidFire Plus shifters, and SunRace 11-36t cassette for a wide, reliable gear range.
- Hydraulic Disc Braking: Tektro HD-M280 hydraulic disc brakes with 2-piston calipers for consistent braking control.
- Wide Alloy Wheelset: Double-wall Specialized alloy rims with 25mm inner width, 32h drilling, Formula sealed-bearing hubs, and stainless 14g spokes.
- Ground Control Tires: Ground Control tires in 27.5x2.35 or 29x2.35 with T5 compound for balanced traction and durability.
- Trail-Focused Cockpit: Alloy mini-rise handlebar with 15mm rise and 9-degree backsweep, paired with a 31.8mm forged alloy stem.
| Frame | Specialized A1 premium butted alloy, zero-stack head tube, internal cable routing, 135x9mm forged dropouts, chainstay-mounted disc brake, replaceable alloy derailleur hanger, stealth rack mounts, dropper post compatible |
| Seat Binder | Alloy, quick release, 34.9 |
| Fork | SR Suntour XCE 26/27.5/29, 28mm stanchions, coil spring, QR, 80/90/100mm travel (size-specific), 42mm offset |
| Front Brake | Tektro HD-M280, 2-piston caliper, hydrailic disc |
| Rear Brake | Tektro HD-M280, 2-piston caliper, hydrailic disc |
| Front Derailleur | Shimano Altus 2-speed |
| Rear Derailleur | Shimano Altus, 9-speed |
| Shift Levers | Shimano Altus, RapidFire Plus, 9-speed |
| Cassette | SunRace, 9-Speed, 11-36t |
| Chain | KMC X9EPT, 9-speed, anti-corrosion coating w/ reusable Missing Link⢠|
| Crankset | Stout 2x, forged alloy |
| Bottom Bracket | Square-tapered, 73mm, internal bearings, 122.5mm spindle |
| Rims | Specialized alloy, disc only, double-wall, 25mm inner width, 32h |
| Front Hub | Alloy, Sealed bearing, 6-Bolt, disc, 100x9mm spacing, quick-release |
| Rear Hub | Alloy Sealed bearing, 6-Bolt, disc, 135x9mm spacing, quick-release |
| Spokes | Stainless, 14g |
| Front Tire | Ground Control, 27.5/29x2.35, T5 |
| Rear Tire | Ground Control, 27.5/29x2.35, T5 |
| Inner Tubes | Standard, Schrader Valve |
| Stem | Stout 3D-forged alloy, 31.8mm, 6-degree rise |
| Handlebars | Alloy Mini Rise, 9-degree backsweep, 15mm rise, 31.8mm |
| Grips | Specialized Trail Grips, lock-on |
| Saddle | Bridge Sport, Steel rails, 155/143mm |
| SeatPost | Alloy, 2-bolt clamp, 30.9mm |
| Pedals | Specialized, platform |
Original: $587.36
-65%$587.36
$205.58Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
Premium A1 Aluminum forms the foundation, with butted alloy tubing and hydroformed top and downtubes balancing low weight with long-term durability. Size-specific wheel pairing and Rx Tune suspension keep geometry, handling, and suspension performance consistent across all frame sizes, while internal cable routing and dropper post compatibility support clean integration.
Specialized Rockhopper Base Bike pairs the Specialized Rockhopper platform with dependable components for confident trail control. A Shimano Altus 2x9 drivetrain delivers crisp shifting across varied terrain, while Tektro HD-M280 hydraulic disc brakes provide reliable stopping power. Size-specific SR Suntour suspension and wide 25mm rims complete a capable, performance-driven hardtail package.
Key Features
- Premium A1 Aluminum Frame: Specialized A1 premium butted alloy frame with hydroformed tubes, internal cable routing, 135x9mm forged dropouts, chainstay-mounted disc brake, replaceable alloy derailleur hanger, stealth rack mounts, and dropper post compatibility.
- Size-Specific Wheel Pairing: Frame sizes matched with optimal 26in, 27.5in, or 29in wheels to ensure consistent handling and fit.
- SR Suntour XCE Fork: Coil-sprung suspension fork with 28mm stanchions, QR axle, and size-specific 80mm, 90mm, or 100mm travel with 42mm offset.
- Shimano Altus 2x9 Drivetrain: Shimano Altus front and rear derailleurs, RapidFire Plus shifters, and SunRace 11-36t cassette for a wide, reliable gear range.
- Hydraulic Disc Braking: Tektro HD-M280 hydraulic disc brakes with 2-piston calipers for consistent braking control.
- Wide Alloy Wheelset: Double-wall Specialized alloy rims with 25mm inner width, 32h drilling, Formula sealed-bearing hubs, and stainless 14g spokes.
- Ground Control Tires: Ground Control tires in 27.5x2.35 or 29x2.35 with T5 compound for balanced traction and durability.
- Trail-Focused Cockpit: Alloy mini-rise handlebar with 15mm rise and 9-degree backsweep, paired with a 31.8mm forged alloy stem.
| Frame | Specialized A1 premium butted alloy, zero-stack head tube, internal cable routing, 135x9mm forged dropouts, chainstay-mounted disc brake, replaceable alloy derailleur hanger, stealth rack mounts, dropper post compatible |
| Seat Binder | Alloy, quick release, 34.9 |
| Fork | SR Suntour XCE 26/27.5/29, 28mm stanchions, coil spring, QR, 80/90/100mm travel (size-specific), 42mm offset |
| Front Brake | Tektro HD-M280, 2-piston caliper, hydrailic disc |
| Rear Brake | Tektro HD-M280, 2-piston caliper, hydrailic disc |
| Front Derailleur | Shimano Altus 2-speed |
| Rear Derailleur | Shimano Altus, 9-speed |
| Shift Levers | Shimano Altus, RapidFire Plus, 9-speed |
| Cassette | SunRace, 9-Speed, 11-36t |
| Chain | KMC X9EPT, 9-speed, anti-corrosion coating w/ reusable Missing Link⢠|
| Crankset | Stout 2x, forged alloy |
| Bottom Bracket | Square-tapered, 73mm, internal bearings, 122.5mm spindle |
| Rims | Specialized alloy, disc only, double-wall, 25mm inner width, 32h |
| Front Hub | Alloy, Sealed bearing, 6-Bolt, disc, 100x9mm spacing, quick-release |
| Rear Hub | Alloy Sealed bearing, 6-Bolt, disc, 135x9mm spacing, quick-release |
| Spokes | Stainless, 14g |
| Front Tire | Ground Control, 27.5/29x2.35, T5 |
| Rear Tire | Ground Control, 27.5/29x2.35, T5 |
| Inner Tubes | Standard, Schrader Valve |
| Stem | Stout 3D-forged alloy, 31.8mm, 6-degree rise |
| Handlebars | Alloy Mini Rise, 9-degree backsweep, 15mm rise, 31.8mm |
| Grips | Specialized Trail Grips, lock-on |
| Saddle | Bridge Sport, Steel rails, 155/143mm |
| SeatPost | Alloy, 2-bolt clamp, 30.9mm |
| Pedals | Specialized, platform |

















