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Specialized Rockhopper Comp Mountain Bike 2021

★★★★★ ★★★★★

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Product ID: 1215047

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Specialized Rockhopper Comp Mountain Bike 2021

A venerable entity within the brand's collection, the Specialized Rockhopper Comp Mountain Bike has been re-imagined to offer new-found tiers of performance while keeping an attractive price point firmly intact. Fresh riding characteristics are realised by the new design to bring about magnified levels of enjoyment and ride execution across any off-road landscape.

The frame, employing the brands own A1 Premium Alloy, has an accurately butted tube formation to result in a chassis that is light, nimble, composed and robust. Realised with a fresh, cross country inspired geometry, the ride is infused with a tenacious and snappy character that is also surefooted and confidence-inspiring, no matter the technicality or genre of the trail. The SR Suntour fork that is Rx Tune configured to deliver the perfect suspension level forms an ideal coalition with the frame by promoting increased trail precision and comfort, regardless of terrain severity.

Stout alloy rims are durable and dependable and are linked to the reliable and smooth Shimano hubs via stainless spokes to deliver a rugged but responsive wheelset. An advanced theory that sees wheel size, either 27.5 or 29-inch, selected in relation to the frame size, further facilitates optimal handling traits no matter the size and skill of the rider.

Any trail profile is catered for by the wide-ranging 2 x 9-speed Shimano gear platform before a full Shimano hydraulic disc brake arrangement bestows modulated and powerful stopping no matter the sharpness of the corner ahead.

With completing ingredients such as a threaded bottom bracket for ease of maintenance, aesthetically pleasing internal cable routing, dropper post compatibility and discreet rack and kickstand mounts, the Rockhopper makes for the most dependable of two-wheeled partners.

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 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
  • Shimano BR-MT200, 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 27.5 | 30mm Stanchions | Rx Tune | coil spring | custom Multi-Circuit damping with lockout | 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 Shimano BR-MT200, hydraulic disc, 180mm
Rear Brake Shimano BR-MT200, hydraulic disc, 160mm
Front Derailleur Shimano Altus FD-M2020 2-speed
Rear Derailleur Shimano Alivio RD-M3100 9-speed
Shift Levers Shimano Acera, 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 Stout Alloy rims, hookless, pinned, disc only, double-wall, 25mm inner width, 28h | Shimano HB-TX505, Center Lock™ disc hub, 9x100mm spacing, quick-release, 28h | Stainless, 14g spokes
Rear Wheel Stout Alloy rims, hookless, pinned, disc only, double-wall, 25mm inner width, 32h | Shimano HB-TX505, Center Lock™ disc hub, 9x135mm 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 14.0kg / 30.86lbs (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. We do not install accessories to bikes, including mudguards. Bikes ordered for delivery that have tubeless compatible tyres and rims will arrive with inner tubes installed or with tubeless valves installed, this will be brand dependent. Sealant is available to be purchased separately.

If you require any assistance please contact our Customer Care team.

Specialized Rockhopper Comp Mountain Bike 2021 Sizing

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