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Specialized 2021 Rockhopper Sport hardtail mountain bike in Satin Slate and Cool Grey has better performance and better value for fast-paced trailblazing. Specialized's goal of making sure that the Rockhopper offers both the best fit

2021 Specialized Rockhopper Sport Hardtail Mountain Bike Satin Slate


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2021 Specialized Rockhopper Sport Hardtail Mountain Bike Satin Slate

Season : 2020

Brand : Specialized

Code : SS91520-

Specialized 2021 Rockhopper Sport hardtail mountain bike in Satin Slate and Cool Grey has better performance and better value for fast-paced trailblazing. Specialized's goal of making sure that the Rockhopper offers both the best fit and best performance for every person, no matter their measure, has been achieved by pairing each Rockhopper frame size with the optimal wheel size (27.5 or 29 inches). The result is a Rockhopper to fit every rider and the assurance that every Rockhopper has the best-handling. At the heart of the Rockhopper is the lightweight but durable A1 Aluminium frame. Butted aluminium tubes keep weight low and strength high while providing increased standover clearance, slick internal cable routing and dropper-post compatibility. 

The handling advantages of pairing each rider with their ideal wheel size and suspension, ensuring the Rockhopper works its hardest for everyone. Rx Tune (Recommend experience tune. Every shock stickered with Rx tune is built to perfectly match the bikes intended use. Coupled with an SR Suntour XCM fork 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.

The Rockhopper Sport also comes with confidence ensuring powerful braking from Tektro's M275 hydraulic disc brakes. Altus shifting from Shimano and an SR SunTour XCM fork is a combination built to hustle you to the front. A durable Formula freehub and SunRace 9-speed cassette keep you rolling smoothly and promise countless miles of fuss-free performance.

This Bike is great for screaming through the trails; the Rockhopper gives you the confidence of more specific geometry giving you the handling capabilities to go faster than ever before and win that race.


  • A1 Aluminium frame 
  • internal cable routing
  • SR Suntour XCE fork with RX Tune
  • SunRace, 8-speed, 11-34t cassette
  • Radius CX7, mechanical disc, 160mm brakes
  • Ground Control Sport, 27.5x2.3" or 29x2.3" tyres 
  • €554.29
  • $761.68
  • $729.76
  • $820.79
  • $544.13
  • CHF497.05
  • kr5,731.99
  • kr73,920.64
  • kr4,129.12
  • kr4,950.54
  • ¥57,590.49
  • Technical Information

    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

    FORK SR Suntour XCM 27.5, 30mm stanchions, Rx Tune, coil spring, QR, 80/90/100mm travel (size-specific), 42mm offset

    FRONT HUB Formula 6-Bolt, disc, 100x9mm spacing, quick-release, 32H

    REAR HUB Formula 6-Bolt freehub, disc, 135x9mm spacing, quick-release, 32H

    SPOKES Stainless, 14g

    RIMS Specialized alloy, disc only, double-wall, 25mm inner width, 32h

    INNER TUBES Schrader, 40mm valve

    FRONT TYRE Ground Control Sport, 27.5x2.3" or 29x2.3."

    REAR TYRE Ground Control Sport, 27.5x2.3" or 29x2.3."

    CRANKSET Stout 2x, forged alloy


    BOTTOM BRACKET Square-tapered, 73mm, internal bearings, 122.5mm spindle

    SHIFT LEVERS Shimano Altus, RapidFire Plus, 9-speed

    FRONT DERAILLEUR Shimano Altus FD-M2020 2-speed

    REAR DERAILLEUR Shimano Altus, RD-M2000, 9-speed

    CASSETTE SunRace, 9-Speed, 11-36t

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

    FRONT BRAKE Tektro HD-M275, hydraulic disc, 180/160mm

    REAR BRAKE Tektro HD-M275, hydraulic disc, 160mm

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

    GRIPS Specialized Trail Grips, lock-on

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

    SADDLE Bridge Sport, Steel rails, 155/143mm

    SEATPOST Alloy, 12mm offset, 2-bolt clamp, 30.9mm

    SEAT BINDER Alloy, quick release, 34.9

    PEDALS Specialized Dirt

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