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Rockhopper Sport
2021 Rockhopper Sport
All barn-burner and no benchwarmer, the Rockhopper Sport throws out the playbook when it comes to putting performance points on the board while playing some serious defense on behalf of your wallet.
Game-ready with Radius mechanical disc brakes, shifting from microSHIFT and an SR SunTour XCM fork that’s built to hustle, the Rockhopper Sport can tack up the win on any given Sunday—and the rest of the week too for that matter.
Technical Specifications
WHEELS
Rims
Specialized alloy, disc only, double-wall, 25mm inner width, 32h
Inner Tubes
Schrader, 40mm valve
Spokes
Stainless, 14g
Front Tire
Ground Control Sport, 29x2.3"
Front Hub
Formula 6-Bolt, disc, 100x9mm spacing, quick-release, 32H
Rear Tire
Ground Control Sport, 29x2.3"
Rear Hub
Formula SP-2125, 6-Bolt freehub, disc, 135x9mm spacing, quick-release
BRAKES
Rear Brake
Radius BR-CX7, mechanical disc
Front Brake
Radius BR-CX7, mechanical disc
ACCESSORIES
Pedals
SBC-54 Flat pedal
Suspension
Fork
SR Suntour XCM 29, 30mm stanchions, Rx Tune, coil spring, QR, 90/100mm travel (size-specific), 42mm offset
COCKPIT
SeatPost
Alloy, 2-bolt clamp, 30.9mm
Grips
Specialized Trail Grips, lock-on
Handlebars
Specialized, alloy, 9-degree backsweep, 15mm rise, 31.8mm
Stem
Stout 3D-forged alloy, 31.8mm, 6-degree rise
Saddle
Bridge Sport, steel rails
FRAMESET
Seat Binder
Alloy, quick release, 34.9
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
DRIVETRAIN
Bottom Bracket
Square-tapered, 73mm, internal bearings, 122.5mm spindle
Chain
KMC X9EPT, 9-speed, anti-corrosion coating w/ reusable Missing Link™
Shift Levers
Shimano Altus, RapidFire Plus, 9-speed
Cassette
SunRace, 9-Speed, 11-36t
Crankset
Stout 2x, forged alloy
Rear Derailleur
microSHIFT Marvo 2x9
Front Derailleur
microSHIFT FD-M462, 2-speed
* Weights based on production painted frames as pictured. Actual weights will vary based on colorway, frame size, and component variation. Specifications are subject to change without notice.
Geometry
| S | M | L | XL | XXL | |
|---|---|---|---|---|---|
| Crank Length | 170mm | 170mm | 175mm | 175mm | 175mm |
| Seatpost Length | 350mm | 400mm | 400mm | 400mm | 400mm |
| Handlebar Width | 720mm | 740mm | 740mm | 740mm | 740mm |
| Stem Length | 45mm | 60mm | 60mm | 70mm | 70mm |
| Saddle Width | 155mm | 143mm | 143mm | 143mm | 143mm |
| Stack | 607mm | 616mm | 626mm | 640mm | 654mm |
| Reach | 405mm | 425mm | 445mm | 465mm | 485mm |
| Head-Tube Length | 95mm | 95mm | 105mm | 120mm | 135mm |
| Head-Tube Angle | 68.5° | 68.5° | 68.5° | 68.5° | 68.5° |
| B-B Height | 310mm | 310mm | 310mm | 310mm | 310mm |
| B-B Drop | 62mm | 62mm | 62mm | 62mm | 62mm |
| Trail | 97mm | 97mm | 97mm | 97mm | 97mm |
| Fork Length (full) | 505mm | 515mm | 515mm | 515mm | 515mm |
| Fork Rake/Offset | 46mm | 46mm | 46mm | 46mm | 46mm |
| Front-Center | 672mm | 696mm | 719mm | 745mm | 770mm |
| Chain-Stay Length | 440mm | 440mm | 440mm | 440mm | 440mm |
| Wheelbase | 1105mm | 1128mm | 1152mm | 1178mm | 1203mm |
| Top-Tube Length (horizontal) | 586mm | 608mm | 630mm | 654mm | 679mm |
| Bike Stand-Over Height | 732mm | 754mm | 781mm | 820mm | 853mm |
| Seat-Tube Length | 360mm | 400mm | 450mm | 500mm | 560mm |
| Seat-Tube Angle | 73.5° | 73.5° | 73.5° | 73.5° | 73.5° |
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