Velopedia Bicycle Archive

Compare Bicycles

Compare published geometry, gearing and specifications for up to three bicycles.

1 of 2 bicycles

At a glance

Key differences

Supported differences are shown below. Data limitations are labeled separately.

  1. Frame geometry

    2021 Specialized Rockhopper Comp has 7 mm more reach than 2019 Specialized Rockhopper Comp in the selected sizes.

    More reach puts the head-tube reference farther forward, not necessarily the hands.

  2. Frame geometry

    2021 Specialized Rockhopper Comp has 11 mm more stack than 2019 Specialized Rockhopper Comp in the selected sizes.

    More stack places the frame reference higher, not necessarily the handlebar.

  3. Handling

    2021 Specialized Rockhopper Comp has a 1.3° slacker head-tube angle than 2019 Specialized Rockhopper Comp in the selected sizes.

    Fork offset, tire size and wheelbase also affect steering; head angle alone is not a handling verdict.

  4. Data limitation

    Only 2019 Specialized Rockhopper Comp has enough published drivetrain data for gearing calculations.

  5. Identity & price

    2019 Specialized Rockhopper Comp had an original MSRP $190 lower than 2021 Specialized Rockhopper Comp.

    Original MSRP is the published list price when new, not today’s used-bike value.

Selected-size geometry

Geometry overlay

Frames share one scale and a bottom-bracket alignment. Size labels differ by brand; schematic drawing aids are identified below.

Complete specification tableShows different published values and gaps where a bicycle lacks data. Different wording reflects source language, not necessarily different components. Swipe for more columns.
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Specification
2021 Specialized Rockhopper Comp
2019 Specialized Rockhopper Comp
Overview
Model Year
2021
2019
Brand
Specialized
Specialized
Model
Rockhopper Comp
Rockhopper Comp
Bicycle Type
Mountain
Mountain
Original MSRP
$1,000.00
$810.00
Colors
Gloss Clay / Satin Cast Blue Metallic, Satin Smoke / Satin Black, Gloss Metallic White Silver / Satin Black, Gloss Oasis / Tarmac Black
Gloss Storm Grey/Rocket Red/Tarmac Black, Satin Black/Ion
Sizes
S, M, L, XL, XXL
S, M, L, XL, XXL
Weight
—
—
Frameset
Frame Construction
Specialized A1 premium butted alloy, zero-stack head tube, internal cable routing, 135x9mm forged dropouts, chainstay-mounted disc brake, replaceable alloy derailleur hanger, stealth rack mounts, dropper post compatible
A1 alloy, Sport XC 29 Geometry, zero-stack head tube, internal cable routing, 135x9mm forged dropouts, chainstay-mounted disc brake, replaceable alloy derailleur hanger
Frame Material
Aluminum
Aluminum
Fork
SR Suntour XCM 29, 30mm Stanchions, Rx Tune, coil spring, custom Multi-Circuit damping w/lockout, QR, 90/100mm travel (size-specific), 46mm offset
SR Suntour XCM 29, coil spring, custom Multi-Circuit damping, quick-release, 46mm offset, 80/90/100mm of travel (size-specific)
Drivetrain
Shifters
microSHIFT Advent, 9-speed
Shimano Altus, RapidFire Plus, 9-speed
Front Derailleur
—
microSHIFT FD-M462, 2-speed
Rear Derailleur
microSHIFT Advent, 1x9 w/ clutch
Shimano Acera, 9-speed
Crankset
Stout 1x, forged alloy
Stout, forged alloy, 2x9; chainrings: Steel, 36/22T
Bottom Bracket
Square-tapered, 73mm, internal bearings, 122.5mm spindle
Square taper, 73mm, internal bearings
BB Shell Width
73 mm
73 mm
Cassette
microSHIFT Advent, 9-speed, 11-42t
SunRace, 9-Speed, 11-36t
Chain
KMC X9EPT, 9-speed, anti-corrosion coating w/ reusable Missing Link™
KMC X9EPT, 9-speed, anti-corrosion coating w/ reusable Missing Link™
Pedals
Specialized Body Geometry Fitness, platform, plastic
Specialized Dirt
Brakes
Brakes
(F) Shimano BR-MT200, hydraulic disc, 180mm / (R) Shimano BR-MT200, hydraulic disc, 180mm
(F) Shimano BR-MT200, hydraulic disc, 160/180mm / (R) Shimano BR-MT200, hydraulic disc, 160mm
Cockpit & Contact Points
Handlebar
Specialized, alloy, 9-degree backsweep, 15mm rise, 31.8mm
Stout XC, double-butted alloy, 8-degree backsweep, 6-degree upsweep, 10mm rise, 31.8mm
Stem
Stout 3D-forged alloy, 31.8mm, 6-degree rise
Stout 3D-forged alloy, 31.8mm, 6-degree rise
Saddle
Bridge Sport, steel rails
Henge Sport, steel rails, 143mm
Seatpost
Alloy, 2-bolt clamp, 30.9mm
Alloy, 12mm offset, 2-bolt clamp, 30.9mm
Wheels & Tires
Hubs
(F) Shimano HB-TX505, Center Lock™ disc, 9x100mm spacing, quick-release, 28h / (R) Shimano FH-TX505, Center Lock™ disc, 9x135mm spacing, quick-release, 32h
(F) Shimano, Center Lock™ disc, 9x100mm spacing, quick-release, 28h / (R) Shimano, Center Lock™ disc, 9x135mm spacing, quick-release, 32h
Rims
Stout Alloy, hookless, double-wall, 25mm inner width
Specialized Alloy 29, 25mm internal width, disc-specific
Spokes
Stainless, 14g
Stainless, 14g
Front Tire
Fast Trak Sport 29x2.35"
Ground Control Sport, 29x2.3"
Rear Tire
Fast Trak Sport 29x2.35"
Fast Trak Sport, 29x2.1"
Geometry · choose a size for each bicycle
Geometry size
Reach
425 mm
418 mm
Stack
616 mm
605 mm
Effective top tube
608 mm
594 mm
Head-tube angle
68.5°
69.8°
Seat-tube angle
73.5°
73.8°
Seat tube
400 mm
430 mm
Head tube
95 mm
95 mm
Chainstay / rear center
440 mm
440 mm
Wheelbase
1128 mm
1110 mm
Bottom-bracket drop
62 mm
57.5 mm
Bottom-bracket height
310 mm
312.5 mm
Standover height
754 mm
776 mm
Fork offset / rake
46 mm
51 mm
Front center
696 mm
676 mm
Trail
97 mm
82 mm

Historical specifications are presented as an archival reference. Components may have varied by market, size, or production run.

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