Product Details
The Specialized Rockhopper is built for riders seeking a reliable, high-performance mountain bike that balances capability and value. Its lightweight yet durable Premium A1 Aluminum frame features hydroformed top and downtubes, internal cable routing, and dropper-post compatibility, providing strength, comfort, and efficient handling across varied terrain. Size-specific Rx Tune suspension and carefully matched wheel sizes ensure that every rider experiences optimal geometry, handling, and performance, no matter their size. The SR Suntour XCM fork with custom Multi-Circuit damping delivers consistent, smooth travel while adapting to frame size for predictable and confident performance.
Equipped with a crisp Shimano 2x9 drivetrain and hydraulic disc brakes, the Rockhopper delivers reliable, precise shifting and stopping power in all conditions. Its Formula hubs and 25mm internal rim diameter combine to create a strong, lightweight, and durable wheelset, giving riders confidence on trails of any type. Whether you’re exploring technical singletrack, climbing steep forest paths, or enjoying fast, flowing trails, the 2026 Rockhopper offers performance, comfort, and versatility at an exceptional value.
Key Features
-
Premium A1 Aluminum Frame – Lightweight, durable construction with hydroformed tubes, internal routing, and dropper-post compatibility
-
Reliable Shimano Drivetrain & Brakes – Crisp 2x9 shifting paired with hydraulic disc brakes for consistent performance and control
-
Optimized Suspension & Wheels – SR Suntour XCM fork with size-specific Rx Tune and strong, lightweight Formula hubs with 25mm rims for precise handling
| Specification | Detail |
|---|---|
| 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 |
| Front Brake | Tektro HD-M280, 2-piston caliper, hydrailic disc |
| Rear Brake | Tektro HD-M280, 2-piston caliper, hydrailic disc |
| Shift Levers | Shimano Altus, RapidFire Plus, 9-speed |
| Front Derailleur | Shimano Altus 2-speed |
| Rear Derailleur | Shimano Altus, 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, 650B/29x2.35, T5 |
| Rear Tire | Ground Control, 650B/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 |
| Product ID | 279922 |
| Weight | 14.1 kg (31 lb, 1.4 oz) |
| Weight Size | MD |
| Fork | SR Suntour XCE 26/27.5/29, 28mm stanchions, coil spring, QR, 80/90/100mm travel (size-specific), 42mm offset |
| Size | XXS - 26 | XS - 27.5 | S - 27.5 | S - 29 | M - 27.5 | M - 29 | L - 29 | XL - 29 | XXL - 29 |
|---|---|---|---|---|---|---|---|---|---|
| Crank Length | 160mm | 165mm | 170mm | 170mm | 170mm | 170mm | 170mm | 175mm | 175mm |
| Handlebar Width | 700mm | 700mm | 720mm | 740mm | 720mm | 740mm | 740mm | 740mm | 740mm |
| Stem Length | 35mm | 35mm | 45mm | 60mm | 45mm | 60mm | 60mm | 70mm | 70mm |
| Saddle Width | 143mm | 155mm | 155mm | 143mm | 155mm | 143mm | 143mm | 143mm | 143mm |
| Seatpost Length | 300mm | 300mm | 350mm | 400mm | 350mm | 400mm | 400mm | 400mm | 400mm |
| Wheel Size | 26in | 27.5in | 27.5in | 27.5in | 29in | 29in | 29in | 29in | 29in |
| Stack | 543mm | 559mm | 573mm | 589mm | 607mm | 616mm | 626mm | 640mm | 654mm |
| Reach | 355mm | 375mm | 395mm | 415mm | 405mm | 425mm | 445mm | 465mm | 485mm |
| Head-Tube Length | 95mm | 95mm | 100mm | 105mm | 95mm | 95mm | 105mm | 120mm | 135mm |
| Head-Tube Angle | 68° | 68° | 68° | 68° | 68.5° | 68.5° | 68.5° | 68.5° | 68.5° |
| B-B Height | 310mm | 310mm | 310mm | 310mm | 310mm | 310mm | 310mm | 310mm | 295mm |
| B-B Drop | 44mm | 43mm | 43mm | 43mm | 62mm | 62mm | 62mm | 62mm | 62mm |
| Trail | 94mm | 97mm | 97mm | 97mm | 97mm | 97mm | 97mm | 97mm | 97mm |
| Fork Length (full) | 455mm | 475mm | 485mm | 495mm | 505mm | 515mm | 515mm | 515mm | 515mm |
| Fork Rake/Offset | 46mm | 46mm | 46mm | 46mm | 40mm | 42mm | 42mm | 42mm | 46mm |
| Front-Center | 601mm | 630mm | 656mm | 682mm | 672mm | 696mm | 719mm | 745mm | 770mm |
| Chain-Stay Length | 420mm | 440mm | 440mm | 440mm | 440mm | 440mm | 440mm | 440mm | 440mm |
| Wheelbase | 1017mm | 1067mm | 1092mm | 1118mm | 1105mm | 1128mm | 1152mm | 1178mm | 1203mm |
| Top-Tube Length (horizontal) | 516mm | 541mm | 565mm | 589mm | 586mm | 608mm | 630mm | 654mm | 679mm |
| Bike Stand-Over Height | 781mm | 820mm | 853mm | 647mm | 658mm | 695mm | 735mm | 732mm | 754mm |
| Seat-Tube Length | 310mm | 310mm | 350mm | 400mm | 360mm | 400mm | 450mm | 500mm | 560mm |
| Seat-Tube Angle | 73.5° | 73.5° | 73.5° | 73.5° | 73.5° | 73.5° | 73.5° | 73.5° | 73.5° |