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The Specialized Rockhopper Comp hardtail mountain bike is ready for big days filled with fun and adventure, with a wide spread of Shimano gears and hydraulic disc brakes.


Specialized Rockhopper Comp Hardtail Mountain Bike 2020 in Blue


Specialized Rockhopper Comp Hardtail Mountain Bike 2020 in Blue

Season : 2020

Brand : Specialized

Code : 373982OREH_ULBTSC-AQA-X2-

Weight : 20KG

The Specialized Rockhopper Comp hardtail mountain bike is ready for big days filled with fun and adventure.

You can settle in for any climb with the Shimano Altus 18-speed drivetrain with two chainrings and a wide-range cassette for the perfect gear on any terrain, and the ergonomic rapidfire plus trigger shifters offer precise gear changes without changing your grip and compromising control.  Meanwhile the A1 alloy frame's smooth and comfortable ride keeps you feeling fresh and ready for anything.

Specialized have spec'd different front and rear tyres optimized around each wheel's purpose. The front Ground Control Sport has aggressive side knobs for grippy cornering bite in varied conditions and the low center tread on the Fast Trak rear provides efficient power transfer and faster rolling.

The SR Suntour suspension fork gives a responsive ride, Shimano hydraulic brakes are reliable in all conditions and the ergonomic Stout XC handlebar provides a comfortable rider position with superb control, so the Rockhopper Comp really is good to go.

Key Features and Benefits

  • A1 aluminium frame, gives a smooth and comfortable ride.
  • Hydraulic disc brakes, for reliable control in all conditions.
  • Shimano gears, have a wide set of ratios to tackle any hill.

Full Specification

  • 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 XCM 29, Rx Tune, coil spring, custom Multi-Circuit damping, QR, 80/90/100mm travel (size-specific), 46mm offset
  • Number of Gears:  18
  • Gear Shifters:  Shimano Altus, 2x9
  • Chainset:  Stout 2x, forged alloy
  • Chainrings:  22/36T
  • Rear Cassette:  SunRace, 9-Speed, 11-36t
  • Chain:  KMC X9EPT, 9-speed, anti-corrosion coating w/ reusable Missing Linkâ„¢
  • Front Derailleur:  Shimano Altus FD-M2020 2-speed
  • Rear Derailleur:  Shimano Acera, 9-speed
  • Bottom Bracket:  Square-tapered, 73mm, internal bearings
  • Pedals:  Specialized Dirt
  • Rims:  Alloy, disc only, double-wall, 25mm internal width
  • Front Hub:  Shimano, Center Lock disc, 9x100mm spacing, quick-release, 28h
  • Rear Hub:  Shimano, Center Lock disc, 9x135mm spacing, quick-release, 32h
  • Front Tyre:  Ground Control Sport, 29x2.3"
  • Rear Tyre:  Fast Trak Sport, 29x2.3"
  • Brakes:  Shimano BR-MT200, hydraulic disc, 180mm rotor front & 160mm rear
  • Handlebars:  Stout XC, double-butted alloy, 8-degree backsweep, 6-degree upsweep, 10mm rise, 31.8mm
  • Handlebar Grips:  Specialized Trail Grips, lock-on
  • Headset:  Not Available
  • Stem:  Stout 3D-forged alloy, 31.8mm, 6-degree rise
  • Saddle:  Specialized Bridge, size specific, 143/155mm
  • Seatpost:  Alloy, 12mm offset, 2-bolt clamp, 30.9mm
  • Accessories:  N/A
  • Weight:  Not Available

Mountain Bike Sizing Guide

Mountain Bikes tend to use the T-Shirt sizing of S, M, L etc. or will have the seat tube measurement in INCHES. Why mountain bikes are inches and road bikes are CM who knows, but the part of the frame being measured is the same.

As a rule of thumb if you can identify your size as Medium on one brand, you should use that as a starting point on another brand too.

If you already own a medium mountain bike for example and are comfortable with the sizing, start there.

What is your height? Your suggested bicycle size
Feet/Inches Centimetres Suggested Size
4'10" - 5'2" 148cm - 158cm X-Small (14-15")
5'2" - 5'6" 158cm - 168cm Small (15.5-17")
5'6" - 5'10" 168cm - 178cm Medium (17.5-18")
5'10" - 6'1" 178cm - 185cm Large (18.5-20")
6'1" - 6'4" 185cm - 193cm X-Large (20.5-22")
6'4" - 6'6" 193cm - 198cm XX-Large (22.5"+)


If you need any more advice on bike sizing for mountain bikes please contact us and we can help you make the right choice.

Technical Information

Geometry for Specialized Rockhopper Comp Hardtail Mountain Bike

Specialized Rockhopper Comp Hardtail Mountain Bike Geometry Chart

Dimensions in mm unless stated

Crank Length 165 170 170 175 175 175  
Stem Length 45 45 60 60 70 90  
Seatpost Length 350 350 350 400 400 400  
Saddle Width 155 155 143 143 143 143  
Handlebar Width 720 720 750 750 750 750  
Reach 380 395 418 441 462 474  
Top Tube Length 548 567 594 622 648 660  
Stack 595 605 619 633 633 633  
Wheelbase 1065 1084 1110 1138 1164 1176  
Chainstay Length 440 440 440 440 440 440  
Front Center 631 650 676 704 730 742  
BB Drop 57.5 57.5 57.5 57.5 57.5 57.5  
BB Height 312.5 312.5 312.5 312.5 312.5 312.5  
Seat Tube Angle 74° 73.9° 73.8° 73.7° 73.6° 73.6°  
Head Tube Angle 69.8° 69.8° 69.8° 69.8° 69.8° 69.8°  
Seat Tube Length 370 400 430 470 520 560  
Head Tube Length 95 95 95 110 125 125  
Bike Standover Height 719 465 776 807 837 861  
Fork Rake/Offset 51 51 51 51 51 51  
Fork Lenght, Full 486 496 506 506 506 506  
Trail 82 82 82 82 82 82  


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