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Specialized Rockhopper Comp 29 Mountain Bike

  • Specialized's A1 Aluminium frame is nimble & lightweight, with internal cables for a clean look
  • Equipped with lockable front suspension, ensuring optimal power transfer on the flat/uphill
  • Shimano 2x9 drivetrain offers reliable and durable shifting with a wide range of gearing
  • Shimano MT200 hydraulic disc brakes ensure confidence, even on steep or technical descents




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Product Information

Specialized Rockhopper Comp 29 Mountain Bike

For as long as mountain bikes have been in existence, the Specialized Rockhopper has been tempting riders offroad as an affordable, but very capable bike. From undulating open downland through to windy forest single track riding, the Rockhopper’s geometry enables the rider to tackle sharp, twisty trails with ease, while inspiring confidence on the descents.  The Rockhopper Comp features Specialized's A1 Aluminium frame, which is an innovative design ensuring strength and stiffness where required, and less material where it's not. This results in a lightweight and stylish base with internal cable routing to complete a clean and fresh look. Suspension from SR SunTour in the way of the XCM fork benefits from Specialized's RxTune treatment whilst hydraulic disc brakes keep up with whatever you throw at them. While a bulletproof wheelset with Shimano hubs means you'll never want to stop riding this bike.

Full Specification



The Rockhopper

A heart of gold, presented in Specialized's lightweight yet durable Premium A1 Aluminum, the Rockhopper features butted aluminium tubes in order to keep weight low and strength high, all while providing increased standover clearance, slick internal cable routing and dropper-post compatibility. With the goal of making sure that the Rockhopper offers both the best fit and best performance for every person, no matter their measure, Specialized has paired each Rockhopper frame size with the optimal wheel size. The result is a Rockhopper to fit every rider and the assurance that every Rockhopper is rolling on the best-handling wheel for its frame size.

Efficient Drivetrain 

Tackle any climb with confidence, knowing that you won't run out of gears. The Shimano Acera 9-speed drivetrain, with two chainrings and a wide-range cassette, ensures you'll always find a suitable gear ratio for the terrain you are on. Ergonomic Rapidfire Plus™ trigger shifters offer comfortable and precise gear shifts without moving your hands and risking a short loss of control. 


Specialized chose the front and rear tyres to optimise around the Rochkopper wheel’s purpose. The front and rear Ground Control Sport tyre provide aggressive side knobs that offer grippy cornering bite in varied conditions. With Rx Tune on Rockhopper, the SR Suntour XCM brings size-specific travel and spring rates to the show in a performance that’s sure to impress while also ensuring consistent geometry, handling and suspension performance, regardless of frame size



Frame 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 XCM 29, 30mm stanchions, Rx Tune, coil spring, QR, 90/100mm travel (size-specific), 42mm offset.

Bottom Bracket - Square-tapered, 73mm, internal bearings, 122.5mm spindle



Rims - Stout Alloy, hookless, pinned, disc only, double-wall, 25mm inner width, 28h

Front Hub - Shimano HB-TX505, Center Lock™ disc, 9x100mm spacing, quick-release, 28h

Rear Hub - Shimano FH-TX505, Center Lock™ disc, 9x135mm spacing, quick-release, 32h

Front Tyre - Specialized Ground Control Sport, 29x2.3"

Rear Tyre - Specialized Ground Control Sport, 29x2.3"



Crankset - Stout 2x, forged alloy

Shifters - Shimano Acera, RapidFire Plus, 9-speed

Front Derailleur - Shimano Altus FD-M2020 2-speed

Rear Derailleur - Shimano Acera, RapidFire Plus, 9-speed

Cassette - SunRace, 9-Speed, 11-36t

Chain - KMC X9EPT, 9-speed, anti-corrosion coating w/ reusable Missing Link™



Front Brake - Shimano BR-MT200, hydraulic disc, 180mm

Rear Brake - Shimano BR-MT200, hydraulic disc, 160mm



Handlebars - Stout Mini Rise, alloy, 9-degree backsweep, 15mm rise, 31.8mm

Stem - Stout 3D-forged alloy, 31.8mm, 6-degree rise

Saddle - Bridge Sport, steel rails

Grips - Specialized Trail Grips, lock-on