Hardrock Disc 29
Part No.  

Hardrock Disc 29

Part No.  50077
Hardrock Disc 29
Technical Specifications
With a smooth SR Suntour fork, powerful Tektro mechanical disc brakes, and double-walled alloy wheels, the Hardrock Disc is prepared for mountain trails and urban jungles.
  • A1 Premium Aluminum 29er frame with ORE downtube for a lighter, more compliant and durable bike
  • 80mm-travel SR Suntour fork with preload adjustment and size-specific spring rates means the suspension is dialed for your size.
  • Specialized Fast Trak Sport tires use Adaptive Tread Technology for lower rolling resistance, but have plenty of grip for confidence on the trail
  • Tektro Novela mechanical disc brake offers dual pad angle adjustment and reliable stopping power in all weather conditions
  • Sunrace 8-speed, 11-34 cassette offers gearing options for getting up to speed on the trail
  • Specialized Body Geometry Hardrock saddle has ample padding for comfort, and front/rear bumpers for durability

Technical Specifications

BOTTOM BRACKET Square taper, cartridge bearings, 68mm shell
CRANKSET Alloy, square taper spindle
FRONT DERAILLEUR Shimano Tourney, 7-speed, 34.9mm clamp, top-swing, dual-pull
SHIFT LEVERS Shimano ST-EF51, 8-speed trigger, w/ integrated brake lever
CASSETTE Sunrace, 8-speed, 11-34
CHAINRINGS 42/34/24, steel
REAR DERAILLEUR Shimano Altus, 8-speed, SGS Cage
FORK SR Suntour SF13-XCT 29"", coil/MCU spring, 1-1/8"" steel steerer, w/ preload adj., 28mm steel stanchions, disc only lowers, 80mm travel
FRONT HUB Disc, alloy, double-sealed, loose ball, steel axle, QR, 36h
REAR HUB Disc, alloy, double-sealed, loose ball, steel axle, steel cassette body, QR, 36h
INNER TUBES Standard Schrader valve
SPOKES Stainless, 14g (2.0mm)
FRONT TIRE Specialized Fast Trak Sport, 29x2.0"", wire bead, 40TPI
RIMS HR Disc 29"", alloy double-wall, disc, pin joint, 25mm, 36h
REAR TIRE Specialized Fast Trak Sport, 29x2.0"", wire bead, 40TPI
SADDLE Specialized Body Geometry Hardrock, steel rails, 143mm
SEATPOST Alloy, 2-bolt, micro-adjust, 12.5mm offset, 30.9mm, 350mm/400mm
STEM Alloy, 4-bolt clamp, 10-degree rise, 25.4mm
HANDLEBARS Specialized flat bar, alloy, 640mm/660mm wide, 8-degree backsweep, 4-degree upsweep, 25.4mm
GRIPS Specialized Body Geometry XCT, Kraton w/ gel, 132mm
FRONT BRAKE Tektro Novela, mechanical disc, dual pad angle adjustment, 160mm rotor
BRAKE LEVERS Shimano, included w/ shifter
REAR BRAKE Tektro Novela, mechanical disc, dual pad angle adjustment, 160mm rotor
PEDALS Composite platform, w/ reflectors, 9/16""
HEADSET 1-1/8"" threadless, loose ball
SEAT BINDER Forged alloy, 34.9mm, QR, nylon washer
FRAME Specialized A1 Premium Aluminum, 29er Geometry, ORE downtube, externally relieved headtube, forged dropouts, reinforced disc mount, replaceable alloy derailleur hanger


Geometry Chart

Hardrock - Geometry

  15.5 17.5 19 21 23
Stem Length 60mm 80mm 80mm 100mm 100mm
Crank Length 170mm 175mm 175mm 175mm 175mm
Seatpost Length 350mm 350mm 400mm 400mm 400mm
Handlebar Width 640mm 660mm 660mm 660mm 660mm
Seat Tube Angle (Effective) 74.25° 73° 73° 73° 73°
Reach 383mm 388mm 404mm 427mm 441mm
Stack 624mm 626mm 635mm 654mm 673mm
Chainstay Length 450mm 450mm 450mm 450mm 450mm
Bottom Bracket Drop 68.5mm 68.5mm 68.5mm 68.5mm 68.5mm
Head Tube Angle 70.5° 71° 71° 71° 71°
Head Tube Length 100mm 100mm 110mm 130mm 150mm
Top Tube Length (Actual) 551mm 552mm 568mm 596mm 631mm
Top Tube Length (Horizontal) 574mm 591mm 610mm 640mm 660mm
Seat Tube Length, Center to Top 394mm 444mm 483mm 533mm 584mm
Standover Height 750mm 783mm 808mm 846mm 884mm
Wheel Base 1072mm 1072mm 1091mm 1122mm 1142mm
Seat Tube Angle (Actual) 73° 72° 72° 72° 72°
Bottom Bracket Height 301mm 301mm 301mm 301mm 301mm