Hardrock Sport Disc 29
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Hardrock Sport Disc 29

Part No.  
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Hardrock Sport Disc 29
Technical Specifications
Better than ever after all these years, our Hardrock is still the best performing mountain bike in its class ... and for good reason. With its lightweight frame, stable geometry and outstanding specification, no other entry-level hardtail on the market can match this combination of performance, versatility and value.
  • XC crankset uses Shimano's Octalink-splined BB interface for reliable power transfer
  • Specialized Fast Trak LK Sport tires use a reduced knob height for lower rolling resistance
  • Avid BB5 mechanical disc brakes with 160mm G2 Clean Sweep rotors for controlled stopping power
  • 80mm smooth-travel fork with preload adjustment and size-specific spring rates for fine-tuned performance
  • Fully butted A1 Premium Aluminum frame with Trail 29-inch geometry for greater control, leverage and bump performance

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-820, 8-speed, 11-32t
CHAINRINGS 42S x 32S x 22S replaceable
FORK SR Suntour SF10-NVX-MLO-700C-80, 80mm, 1pc. alloy lower, 28mm Hi-Ten stanchions, coil/mcu spring w/ preload adj., size-specific spring rates, spring assisted seals, 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, 32h front and rear
REAR TIRE Specialized Fast Trak LK Sport, 29x2.0"", 60TPI, wire bead
SADDLE Specialized XC, Body Geometry, 143mm width, front and rear bumpers
SEATPOST Alloy two bolt, 12.5mm offset, micro adjust, 30.9mm
STEM 3D forged alloy, 10 degree rise, 25.4mm clamp
HANDLEBARS Alloy riserbar, 25mm rise, 640mm 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 Alloy, 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 Alloy QR, nylon washer
FRAME Specialized A1 Premium Aluminum, Trail 29"" geometry, fully butted, formed TT, Double ORE DT, externally relieved HT, reinforced disc mount, forged dropouts w/ replaceable hanger, disc only


Geometry Chart

- Geometry

  15 17 19 21 23
Crank Length 170mm 170mm 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 450mm 450mm 450mm 450mm 450mm
Top Tube Length (Actual) 564.4mm 562.4mm 581.2mm 609.6mm 631.1mm
Ground-Top 301.15mm 301.15mm 301.15mm 301.15mm 301.15mm
Top Tube Length (Horizontal) 570mm 585mm 610mm 640mm 660mm
Head Tube Angle - Low Setting 70.5° 71° 71° 71° 71°
Standover Height 703mm 791mm 824mm 858mm 894mm
Head Tube Height 100mm 100mm 110mm 130mm 150mm
Wheel Base 1083mm 1084mm 1105mm 1136mm 1157mm
Seat Tube Angle (Actual) - Low Setting 73° 72° 72° 72° 72°
Seat Tube Angle (Effective) - Low Setting 74.23° 73.17° 73.17° 73.17° 73.17°
Seat Tube Length - Center to Top 381mm 432mm 483mm 533mm 584mm
Bottom Bracket Height - Low Setting 301.15mm 301.15mm 301.15mm 301.15mm 301.15mm