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Specialized Rockhopper Mountain Bike 2021

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Rockhopper Mountain Bike 2021

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Product ID: 1215468

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Specialized Rockhopper Mountain Bike 2021

A distinguished member of the brand's family the Specialized Rockhopper Mountain Bike has been refreshed to result in even more versatility and a greatly heightened level of performance. By re-imagining the essential aspects, any rider of any ability can now conquer an even bigger spectrum of terrain without breaking the bank to do so.

The newly conceived A1 Premium Alloy frame features carefully butted tubing to result in a lighter weight, increased durability and a reactive riding spirit. Utilising a refreshing cross country influenced geometry, a planted and confident experience is punctuated by sprightliness and responsiveness. The SR Suntour fork, with its RX tuned suspension, partners by bestowing its plush cushioning to impart increased trail accuracy and comfort.

Double-walled and realised in Specialized's own alloy the resilient rims are coupled with smooth and well-sealed Formula hubs to give rise to a dependable, low maintenance wheelset that's game for any off-road task. A smart concept, matching the correct wheel size, either 27.5 or 29-inch, to the size of the frame, ensures that any rider receives optimal levels of poise and control with which to attack the trails.

A Shimano and microShift gear combination facilitate smooth passage across any topography thanks to its broad range of ratios before a disc brake set up provides all of the stopping power required in the most technical of riding situations.

An already thorough specification is completed with aesthetically pleasing cable routing, a threaded bottom bracket for easy maintenance, dropper post compatibility and rack and kickstand mounts.

Learn 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 XCE suspension fork, Rx Tune configured
  • Frame size-specific wheel sizing, either 27.5 or 29-inch, to optimise handling regardless of frame size
  • Shimano and microSHIFT combined 2 x 8-speed gear set up with service friendly, threaded bottom bracket
  • Radius CX7, mechanical 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 XCE | 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 Radius CX7, mechanical disc, 160mm
Rear Brake Radius CX7, mechanical disc, 160mm
Front Derailleur Shimano Altus FD-M315
Rear Derailleur Shimano Tourney RD-TX800, 8-speed
Shift Levers microSHIFT, TS39-8R, 8-speed
Cassette SunRace, 8-speed, 11-34t
Chain KMC X8 EPT, anti-rust coating, 8-speed w/ reusable Missing Link™
Crankset Stout 2x, forged alloy
Chainrings 22/36 Tooth
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 Ground Control Sport, 27.5x2.3" | Clincher
Rear Tyre Ground Control Sport, 27.5x2.3" | Clincher
Saddle Bridge Sport, steel rails, 155/143mm
Seatpost Alloy, 12mm offset, 2-bolt clamp, 30.9mm
Pedals Specialized Dirt
Manufacturer Claimed Weight 14.5kg / 31.97lbs (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 Mountain Bike 2021 Sizing

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