Rockhopper Comp Disc 29
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Rockhopper Comp Disc 29

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Rockhopper Comp Disc 29
Technical Specifications
For XC hardtail riders looking to upgrade their trail adventures or maybe even nab their first real deal mountain bike, the Rockhopper® is impossible to beat. A lightweight and responsive M4 chassis, capable MTB components and straight-out-of-the-box performance make this bike feel like a much more expensive ride
  • Alloy double-walled rims for lightweight durability
  • Crankset uses Octalink-splined BB interface for reliable power transfer
  • SRAM X5 rear derailleur and X4 8-speed trigger shifters for sure-fire gear changes
  • Avid BB5 mechanical disc brakes with 160mm G2 Clean Sweep rotors for controlled stopping power
  • RockShox Dart 3 80mm-travel fork features preload adjustment and size-specific spring rates for versatile performance
  • Fully butted M4 alloy frame with Trail 29-inch geometry for greater control, leverage and bump performance, plus slider dropouts for singlespeed compatibility

Technical Specifications

CHAIN KMC X8 w/ reuseable Missing Link
BOTTOM BRACKET Shimano BB-ES25, Octalink spline, cartridge bearing, 68mm x 118mm
CRANKSET SR SunTour, Octalink spline
FRONT DERAILLEUR Shimano Altus, 34.9mm clamp
CASSETTE SRAM PG-830, 8-speed, 11-32t
CHAINRINGS 42S x 32S x 22S replaceable
FORK RockShox Dart 3 SL for 29"" wheel, 80mm, 1 piece magnesium lower, alloy steerer, adj. reb. damping w/ LO and preload adj., size-specific spring rates, spring assisted seal, disc only
FRONT HUB Forged alloy, hi/low flange, double sealed, ground race, machined disc mount, 32h
REAR HUB Forged alloy, double sealed, ground race, machined disc mount, cassette, 32h
INNER TUBES Schraeder valve
SPOKES 2mm (14g) stainless
FRONT TIRE Specialized Fast Trak LK Sport, 29x2.0"", 60TPI, wire bead
RIMS Alex RHD 29"", pinned, alloy double wall, eyelets, 28h front and 32h rear
REAR TIRE Specialized Fast Trak LK Sport, 29x2.0"", 60TPI, wire bead
SADDLE Specialized Rockhopper XC, Body Geometry, 143mm width, front and rear bumpers
SEATPOST Alloy two bolt, 12.5mm offset, micro adjust, 30.9mm
STEM 3D forged alloy, 7 degree rise, 31.8mm clamp
HANDLEBARS Butted alloy riserbar, 25mm rise, 660mm wide, 8 degree back sweep, 7 degree up sweep
GRIPS Specialized Enduro, dual compound Kraton, no flange, 131mm
FRONT BRAKE Avid BB5, mechanical disc, 160mm G2 Clean Sweep rotor
BRAKE LEVERS Avid FR-5, alloy, two-finger linear pull
REAR BRAKE Avid BB5, mechanical disc, 160mm G2 Clean Sweep rotor
PEDALS Steel cage, composite body, 9/16""
HEADSET 1-1/8"" threadless, loose ball
SEAT BINDER Forged alloy QR, brass washer
FRAME Specialized M4 fully manipulated alloy frame, fully butted, Trail 29"" geometry, ORE DT, externally relieved HT, 2-piece forged adjustable slider dropouts, disc only


Geometry Chart

- Geometry

  15 17 19 21 23
Crank Length 170mm 175mm 175mm 175mm 175mm
Stem Length 60mm 75mm 90mm 90mm 90mm
Seatpost Length 350mm 350mm 400mm 400mm 400mm
Handlebar Width 640mm 640mm 640mm 640mm 640mm
Chainstay Length 442mm 442mm 442mm 442mm 442mm
Top Tube Length (Actual) 561mm 569.8mm 595mm 619.5mm 641.5mm
Ground-Top 299.5mm 299.5mm 299.5mm 299.5mm 299.5mm
Top Tube Length (Horizontal) 570mm 595mm 625mm 650mm 670mm
Head Tube Angle - Low Setting 70.5° 71° 71° 71° 71°
Standover Height 707mm 787mm 821mm 857mm 893mm
Head Tube Height 90mm 90mm 100mm 120mm 140mm
Wheel Base 1078mm 1087mm 1117mm 1142mm 1162mm
Seat Tube Angle (Actual) - Low Setting 73° 72° 72° 72° 72°
Seat Tube Angle (Effective) - Low Setting 74.2° 73.2° 73.2° 73.2° 73.2°
Seat Tube Length - Center to Top 381mm 432mm 483mm 533mm 584mm
Bottom Bracket Height - Low Setting 299.5mm 299.5mm 299.5mm 299.5mm 299.5mm