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Specialized Rockhopper Sport Mountain Bike 2021

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Rockhopper Sport Mountain Bike 2021

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Product ID: 1215313

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Specialized Rockhopper Sport Mountain Bike 2021

An eminent part of the brand’s collection across the last few decades, the Specialized Rockhopper Sport Mountain Bike has been re-formatted entirely to give rise to boosted grades of ride-quality and to further the scope of its versatility across all genres of off-road riding. This has all been achieved while keeping its famed and critical price-to-performance ratio.

An A1 Premium Alloy frame with accurately butted tubing promotes a chassis that is brimming with energy, responsiveness and composure no matter the terrain ahead. A newly realised, XC inspired geometry grants a confident, spritely character before the SR Suntour fork, via it’s RX Tuned suspension, adds increased line accuracy and plushness into the performance mixture, regardless of trail severity.

Burly, double-walled, Specialized alloy rims are amalgamated with solid and dependable Formula hubs to result in a wheelset that excels whether grinding uphill or flying down technical descents. A newly conceived frame size-specific wheel sizing scheme brings optimal handling to the package by matching the wheel size to the rider and bike perfectly.

All manner of topography is conquerable thanks to the vast scope of ratios offered by the Shimano gear formation before the hydraulic disc brake platform bestows confidence via its modulated and accurate stopping power.

Complemented by a threaded bottom bracket, aesthetically pleasing internal cable routing, dropper post compatibility and convenient rack and kickstand mounts, the Rockhopper results in a most comprehensive and multifaceted companion that is set for any adventure.

Read more about the Specialized Rockhopper 2021 mountain bike range.


  • Re-designed from the ground up the venerable Rockhopper is now lighter, better handling, more service friendly and more versatile
  • All-new frame design with A1 Alloy and butted tubing
  • Cross country-inspired geometry
  • SR Suntour XCM suspension fork, Rx Tune configured
  • Frame size-specific wheel sizing, either 27.5 or 29-inch, to optimise handling regardless of frame size
  • Shimano 2 x 9-speed gear set up with service friendly, threaded bottom bracket
  • Tektro HD-M275, hydraulic disc brake configuration

Technical Specification

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
Fork SR Suntour XCM | 30mm Stanchions | Rx Tune | coil spring | QR | 80/90/100mm travel (size-specific) | 42mm offset
Stem Stout 3D-forged alloy, 31.8mm, 6-degree rise
Handlebars Stout Mini Rise, alloy, 9-degree backsweep, 15mm rise, 31.8mm
Grips Specialized Trail Grips, lock-on
Front Brake Tektro HD-M275, hydraulic disc, 180mm
Rear Brake Tektro HD-M275, hydraulic disc, 160mm
Front Derailleur Shimano Altus FD-M2020 2-speed
Rear Derailleur Shimano Altus, RD-M2000, 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, 22/36t
Bottom Bracket Square-tapered, 73mm, internal bearings, 122.5mm spindle
Front Wheel Specialized alloy, disc only rims, double-wall, 25mm inner width, 32h | Formula 6-Bolt hub, disc, 100x9mm spacing, quick-release, 32H | Stainless, 14g spokes
Rear Wheel Specialized alloy, disc only rims, double-wall, 25mm inner width, 32h | Formula 6-Bolt hub, disc, 135x9mm spacing, quick-release, 32H | Stainless, 14g spokes
Front Tyre Specialized Ground Control Sport, 27.5x2.3" | Clincher
Rear Tyre Specialized Ground Control Sport, 27.5x2.3" | Clincher
Saddle Specialized Bridge Sport, steel rails, 155/143mm
Seatpost Specialized Alloy, 12mm offset, 2-bolt clamp, 30.9mm
Pedals Specialized Dirt
Manufacturer Claimed Weight 14.25kg / 31.42lbs (size M, 29")

Built, Checked, Tuned and Tested

All our bikes are fully built, checked, tuned and tested by our Cytech qualified mechanics and then securely packaged, ready for delivery. All you have to do is add the pedals (if included), attach the handlebars to the stem and tighten them following the included detailed instructions or by watching our video and using the provided FREE tools. Visit our Bike Assembly page to see how you assemble your new bike once you receive it.

All bikes collected from our shop, are built, tested and ready to ride.

Please note, occasionally, manufacturers may change the specification without notice. Bicycles do not come with pedals unless otherwise specified. Bikes ordered for delivery will not arrive with the pedals installed, please refer to the owners manual and pedal installation guides provided for guidance or contact Customer Care. We do not install accessories to bikes, including mudguards.

Specialized Rockhopper Sport Mountain Bike 2021 Sizing

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