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Rockhopper

Rockhopper

Part No. 91220-7102

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Size
Size Chart
Are you ready to level up your mountain bike game? The Rockhopper is like a cheat code for unlimited fun, with a lightweight A1 Aluminum alloy frame. Our Sport XC 29 geometry maximizes the benefits of large 29-inch wheels, while the hardworking parts kit just won’t quit. DIALED FOR DIRT Our Sport XC 29 geometry is designed for a comfortable, efficient riding position, with a short stem and longer reach that puts your center of gravity slightly farther back for stability, while the short chainstays keep the rear wheel tucked in for maximum traction. SIR SHIFTS-A-LOT The 16-speed Shimano drivetrain provides reliable shifting that puts you in the right gear every time. A broad gear range flattens out long hills and keeps you cranking on descents, and the rust-resistant KMC chain runs long and strong but won’t get the friction on. SR SunTour XCT 30 suspension fork keeps you in control no matter the terrain. Powerful Shimano hydraulic disc brakes give you confidence and control on steep trails. Ground Control Sport front and Fast Trak Sport rear tires are the perfect combo of efficiency and grip.

Are you ready to level up your mountain bike game? The Rockhopper is like a cheat code for unlimited fun, with a lightweight A1 Aluminum alloy frame. Our Sport XC 29 geometry maximizes the benefits of large 29-inch wheels, while the hardworking parts kit just won’t quit.

DIALED FOR DIRT

Our Sport XC 29 geometry is designed for a comfortable, efficient riding position, with a short stem and longer reach that puts your center of gravity slightly farther back for stability, while the short chainstays keep the rear wheel tucked in for maximum traction.

SIR SHIFTS-A-LOT

The 16-speed Shimano drivetrain provides reliable shifting that puts you in the right gear every time. A broad gear range flattens out long hills and keeps you cranking on descents, and the rust-resistant KMC chain runs long and strong but won’t get the friction on.

SR SunTour XCT 30 suspension fork keeps you in control no matter the terrain.

Powerful Shimano hydraulic disc brakes give you confidence and control on steep trails.

Ground Control Sport front and Fast Trak Sport rear tires are the perfect combo of efficiency and grip.

Technical Specifications

Frame A1 alloy, Sport XC 29 Geometry, zero-stack head tube, internal cable routing, 135x9mm forged dropouts, chainstay-mounted disc brake, replaceable alloy derailleur hanger
Fork SR SunTour XCT 30, Rx Tune, coil spring, 80/90/100mm travel (size-specific), 46mm offset
Stem Stout 3D-forged alloy, 31.8mm, 6-degree rise
Handlebars Stout XC, double-butted alloy, 8-degree backsweep, 6-degree upsweep, 10mm rise, 31.8mm
Grips Specialized Trail Grips, lock-on
Saddle Specialized Bridge, size specific, 143/155mm
SeatPost Alloy, 12mm offset, 2-bolt clamp, 30.9mm
Front Brake Shimano BR-MT200, hydraulic disc, 180/160mm
Rear Brake Shimano BR-MT200, hydraulic disc
Front Derailleur Shimano Altus FD-M315 2-Speed
Rear Derailleur Shimano Tourney TX, 8-speed
Shift Levers Shimano EF505, hydraulic, 2x8-speed
Cassette SunRace, 8-speed, 11-34t
Chain KMC X8EPT, 8-speed, anti-corrosion coating w/ reusable Missing Link™
Crankset Stout 2x, forged alloy
Chainrings 22/36T
Bottom Bracket Square-tapered, 73mm, internal bearings
Rims Alloy, disc only, double-wall, 25mm inner width
Front Hub Shimano, Center Lock™ disc, 9x100mm spacing, quick-release, 32h
Rear Hub Shimano FH-TX505, Center Lock™ disc, 9x135mm spacing, quick-release, 32h
Spokes Stainless, 14g
Front Tire Ground Control Sport, 29x2.3\"
Rear Tire Fast Trak Sport, 29x2.3\"

Technical Specifications

Frame A1 alloy, Sport XC 29 Geometry, zero-stack head tube, internal cable routing, 135x9mm forged dropouts, chainstay-mounted disc brake, replaceable alloy derailleur hanger
Fork SR SunTour XCT 30, Rx Tune, coil spring, 80/90/100mm travel (size-specific), 46mm offset
Stem Stout 3D-forged alloy, 31.8mm, 6-degree rise
Handlebars Stout XC, double-butted alloy, 8-degree backsweep, 6-degree upsweep, 10mm rise, 31.8mm
Grips Specialized Trail Grips, lock-on
Saddle Specialized Bridge, size specific, 143/155mm
SeatPost Alloy, 12mm offset, 2-bolt clamp, 30.9mm
Front Brake Shimano BR-MT200, hydraulic disc, 180/160mm
Rear Brake Shimano BR-MT200, hydraulic disc
Front Derailleur Shimano Altus FD-M315 2-Speed
Rear Derailleur Shimano Tourney TX, 8-speed
Shift Levers Shimano EF505, hydraulic, 2x8-speed
Cassette SunRace, 8-speed, 11-34t
Chain KMC X8EPT, 8-speed, anti-corrosion coating w/ reusable Missing Link™
Crankset Stout 2x, forged alloy
Chainrings 22/36T
Bottom Bracket Square-tapered, 73mm, internal bearings
Rims Alloy, disc only, double-wall, 25mm inner width
Front Hub Shimano, Center Lock™ disc, 9x100mm spacing, quick-release, 32h
Rear Hub Shimano FH-TX505, Center Lock™ disc, 9x135mm spacing, quick-release, 32h
Spokes Stainless, 14g
Front Tire Ground Control Sport, 29x2.3\"
Rear Tire Fast Trak Sport, 29x2.3\"

Geometry

Geometry Chart

Geometry

  XS S M L XL XXL
Stack 586mm 595mm 605mm 619mm 633mm 633mm
Reach 380mm 395mm 418mm 441mm 462mm 474mm
HeadTubeLength 95mm 95mm 95mm 110mm 125mm 125mm
HeadTubeAngle 69.8deg 69.8deg 69.8deg 69.8deg 69.8deg 69.8deg
BBHeight 312.5mm 312.5mm 312.5mm 312.5mm 312.5mm 312.5mm
BBDrop 57.5mm 57.5mm 57.5mm 57.5mm 57.5mm 57.5mm
Trail 82mm 82mm 82mm 82mm 82mm 82mm
ForkLength,Full 486mm 496mm 506mm 506mm 506mm 506mm
ForkRake/Offset 51mm 51mm 51mm 51mm 51mm 51mm
FrontCenter 631mm 650mm 676mm 704mm 730mm 742mm
ChainstayLength 440mm 440mm 440mm 440mm 440mm 440mm
Wheelbase 1065mm 1084mm 1110mm 1138mm 1164mm 1176mm
TopTubeLength(Horizontal) 548mm 567mm 594mm 622mm 648mm 660mm
BikeStandoverHeight 719mm 765mm 776mm 807mm 837mm 861mm
SeatTubeLength 370mm 400mm 430mm 470mm 520mm 560mm
SeatTubeAngle 74deg 73.9deg 73.8deg 73.7deg 73.6deg 73.6deg

Geometry

Geometry Chart

Geometry

  XS S M L XL XXL
Stack 586mm 595mm 605mm 619mm 633mm 633mm
Reach 380mm 395mm 418mm 441mm 462mm 474mm
HeadTubeLength 95mm 95mm 95mm 110mm 125mm 125mm
HeadTubeAngle 69.8deg 69.8deg 69.8deg 69.8deg 69.8deg 69.8deg
BBHeight 312.5mm 312.5mm 312.5mm 312.5mm 312.5mm 312.5mm
BBDrop 57.5mm 57.5mm 57.5mm 57.5mm 57.5mm 57.5mm
Trail 82mm 82mm 82mm 82mm 82mm 82mm
ForkLength,Full 486mm 496mm 506mm 506mm 506mm 506mm
ForkRake/Offset 51mm 51mm 51mm 51mm 51mm 51mm
FrontCenter 631mm 650mm 676mm 704mm 730mm 742mm
ChainstayLength 440mm 440mm 440mm 440mm 440mm 440mm
Wheelbase 1065mm 1084mm 1110mm 1138mm 1164mm 1176mm
TopTubeLength(Horizontal) 548mm 567mm 594mm 622mm 648mm 660mm
BikeStandoverHeight 719mm 765mm 776mm 807mm 837mm 861mm
SeatTubeLength 370mm 400mm 430mm 470mm 520mm 560mm
SeatTubeAngle 74deg 73.9deg 73.8deg 73.7deg 73.6deg 73.6deg