Velopedia Bicycle Archive

2019 Specialized Rockhopper Comp

Original specifications: geometry for 6 published sizes.

Share owner experience

Planning to sell? Draft your listing

At a glance

Archive #900003459
Model year
2019
Category
Mountain
Original MSRP
$810.00
Sizes
S, M, L, XL, XXL
Colors
Gloss Storm Grey/Rocket Red/Tarmac Black, Satin Black/Ion
Geometry
6 manufacturer sizes
In this record
22 specifications · 8 archived images · original MSRP · geometry
Model history 15 other years

Browse other years

Compare side by side

Identification clues

2019 archived details

Published colors
Gloss Storm Grey/Rocket Red/Tarmac Black, Satin Black/Ion
Frame
Aluminum

Clues, not proof of model year. Colors vary and components may have been replaced.

Campaign
Original buildAluminum

Manufacturer catalog

Published sizes and colors

5 sizes · 2 colors

Manufacturer-published sizes and colors; availability and exact size/color pairings may vary by market or production run.

Published sizes

SMLXLXXL

Published colors

Gloss Storm Grey/Rocket Red/Tarmac BlackSatin Black/Ion

Frameset

Frame ConstructionA1 alloy, Sport XC 29 Geometry, zero-stack head tube, internal cable routing, 135x9mm forged dropouts, chainstay-mounted disc brake, replaceable alloy derailleur hanger
Frame MaterialAluminum
ForkSR Suntour XCM 29, coil spring, custom Multi-Circuit damping, quick-release, 46mm offset, 80/90/100mm of travel (size-specific)

Drivetrain

ShiftersShimano Altus, RapidFire Plus, 9-speed
Front DerailleurmicroSHIFT FD-M462, 2-speed
Rear DerailleurShimano Acera, 9-speed
CranksetStout, forged alloy, 2x9; chainrings: Steel, 36/22T
Bottom BracketSquare taper, 73mm, internal bearings
BB Shell Width73 mm
CassetteSunRace, 9-Speed, 11-36t
ChainKMC X9EPT, 9-speed, anti-corrosion coating w/ reusable Missing Link™
PedalsSpecialized Dirt

Brakes

Brakes(F) Shimano BR-MT200, hydraulic disc, 160/180mm / (R) Shimano BR-MT200, hydraulic disc, 160mm

Cockpit & Contact Points

HandlebarStout XC, double-butted alloy, 8-degree backsweep, 6-degree upsweep, 10mm rise, 31.8mm
StemStout 3D-forged alloy, 31.8mm, 6-degree rise
SaddleHenge Sport, steel rails, 143mm
SeatpostAlloy, 12mm offset, 2-bolt clamp, 30.9mm

Wheels & Tires

Hubs(F) Shimano, Center Lock™ disc, 9x100mm spacing, quick-release, 28h / (R) Shimano, Center Lock™ disc, 9x135mm spacing, quick-release, 32h
RimsSpecialized Alloy 29, 25mm internal width, disc-specific
SpokesStainless, 14g
Front TireGround Control Sport, 29x2.3"
Rear TireFast Trak Sport, 29x2.1"

Geometry

6 sizes · 20 measurements

Frame measurements by size.

All geometry measurements6 sizes · 20 measurements
MeasurementXSSMLXLXXL
Seat tube370 mm400 mm430 mm470 mm520 mm560 mm
Effective top tube548 mm567 mm594 mm622 mm648 mm660 mm
Head tube95 mm95 mm95 mm110 mm125 mm125 mm
Head-tube angle69.8°69.8°69.8°69.8°69.8°69.8°
Seat-tube angle74°73.9°73.8°73.7°73.6°73.6°
Chainstay / rear center440 mm440 mm440 mm440 mm440 mm440 mm
Wheelbase1065 mm1084 mm1110 mm1138 mm1164 mm1176 mm
Bottom-bracket drop57.5 mm57.5 mm57.5 mm57.5 mm57.5 mm57.5 mm
Bottom-bracket height312.5 mm312.5 mm312.5 mm312.5 mm312.5 mm312.5 mm
Reach380 mm395 mm418 mm441 mm462 mm474 mm
Stack586 mm595 mm605 mm619 mm633 mm633 mm
Standover height719 mm765 mm776 mm807 mm837 mm861 mm
Fork offset / rake51 mm51 mm51 mm51 mm51 mm51 mm
Front center631 mm650 mm676 mm704 mm730 mm742 mm
Trail82 mm82 mm82 mm82 mm82 mm82 mm
Fork length / axle-to-crown486 mm496 mm506 mm506 mm506 mm506 mm
Seatpost length350 mm350 mm400 mm400 mm400 mm400 mm
Crank length165 mm170 mm175 mm175 mm175 mm175 mm
Stem length45 mm60 mm70 mm70 mm90 mm90 mm
Handlebar width720 mm720 mm720 mm720 mm720 mm720 mm

Dimensions as recorded.

Gearing

Lower gears help on climbs. Higher gears suit higher speeds.

RPM

RPM = pedal turns per minute.

All published sizes36/22T · 11–36T
Lowest0.61:1 Highest3.27:1 Total range536%
Estimated speed At 90 RPM Lowest gear4.7 mph Highest gear25.1 mph

Rear tire: 29×2.1.

How it works

Ratio = front teeth ÷ rear teeth. Hub gears also include the hub’s internal ratio. A 400% range means the highest ratio is four times the lowest.

Speeds are estimates from tire size and pedal cadence. Actual speeds vary.

Try other gearing

Try your current gearingChanged tires or gears? Calculate your setup.

Your changes apply to this calculation. The archived build stays unchanged.

Your gearing setup
Gears

Use up to three front tooth counts, separated by /. For one rear sprocket, enter the same count twice.

Rear tire

Apply the marking on your rear tire or edit its dimensions below. Older or fractional inch sizes need the ISO marking (e.g. 37-590).

For 32-622, width is 32 mm and rim diameter is 622 mm. Use the rear tire on mixed-wheel bikes. Leave both fields empty to compare ratios only.

Gear, dimension and cadence changes update results automatically.

Speeds are estimates. These calculations do not establish component compatibility or available tire clearance.

Parts & serviceability

Find replacement parts

Original specifications
Chain · Original
KMC X9EPT

9-speed, anti-corrosion coating w/ reusable Missing Link™

Cassette · Original
SunRace

9-Speed, 11-36t

Front tire · Original
Ground Control Sport

29x2.3"

Replacement search: 29x2.3 bicycle tire Before ordering: Check rim type and tire clearance.
More parts (8)Fewer parts
Rear tire · Original
Fast Trak Sport

29x2.1"

Replacement search: 29x2.1 bicycle tire Before ordering: Check rim type and tire clearance.
Brake pads · Original
(F) Shimano BR-MT200

hydraulic disc, 160/180mm / (R) Shimano BR-MT200, hydraulic disc, 160mm

Pedals · Original
Specialized Dirt
Front derailleur · Original
microSHIFT FD-M462

2-speed

Rear derailleur · Original
Shimano Acera

9-speed

Shifters · Original
Shimano Altus

RapidFire Plus, 9-speed

Seatpost · Original
Alloy

12mm offset, 2-bolt clamp, 30.9mm

Rims · Original
Specialized Alloy 29

25mm internal width, disc-specific

Based on the original build. Check fit and installed parts before ordering. Affiliate links may earn Velopedia a commission. As an Amazon Associate I earn from qualifying purchases.

Service essentialsQuick reference before buying parts

Archived specifications for reference. Check the fitted parts before ordering.

Front tire
Ground Control Sport, 29x2.3"Check: Verify the fitted tire’s size marking and rim type.
Rear tire
Fast Trak Sport, 29x2.1"Check: Verify the rear size; it may differ from the front.
Seatpost diameter
30.9 mmCheck: Read the post’s diameter marking; seat-clamp size differs.
Bottom bracket / shell
Square taper, 73mm, internal bearings · 73 mmCheck: Verify shell type and width, crank interface, and spindle length or spacers.

Not confirmed in this record: Drivetrain. Check the fitted parts for these details.

Campaign
Bike-specific inspection checklist 20 checks based on 6 archived component groups Open checklistClose checklist
0 of 20 checked Progress stays in this browser for this record.

This checklist uses the archived equipment for this bike. It cannot confirm the condition, service history or later component changes of the example in front of you.

Archived: 2019 Specialized Rockhopper Comp · Mountain · Published sizes: S, M, L, XL, XXL

Archived: 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, coil spring, custom Multi-Circuit damping, quick-release, 46mm offset, 80/90/100mm of travel (size-specific)

Archived: Fork: SR Suntour XCM 29, coil spring, custom Multi-Circuit damping, quick-release, 46mm offset, 80/90/100mm of travel (size-specific)

Archived: Shifters: Shimano Altus, RapidFire Plus, 9-speed · Front derailleur: microSHIFT FD-M462, 2-speed · Rear derailleur: Shimano Acera, 9-speed · Crankset: Stout, forged alloy, 2x9; chainrings: Steel, 36/22T · Bottom bracket: Square taper, 73mm, internal bearings · Cassette: SunRace, 9-Speed, 11-36t · Chain: KMC X9EPT, 9-speed, anti-corrosion coating w/ reusable Missing Link™

Archived: Brakes: (F) Shimano BR-MT200, hydraulic disc, 160/180mm / (R) Shimano BR-MT200, hydraulic disc, 160mm

Archived: Rims: Specialized Alloy 29, 25mm internal width, disc-specific · Hubs: (F) Shimano, Center Lock™ disc, 9x100mm spacing, quick-release, 28h / (R) Shimano, Center Lock™ disc, 9x135mm spacing, quick-release, 32h · Front tire: Ground Control Sport, 29x2.3" · Rear tire: Fast Trak Sport, 29x2.1"

Controls and contact points

Archived: Handlebar: 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 · Seatpost: Alloy, 12mm offset, 2-bolt clamp, 30.9mm · Saddle: Henge Sport, steel rails, 143mm · Pedals: Specialized Dirt

Before and during the test ride

Follow the full used-bike inspection order →

My Garage

Velopedia

Enter your email and Velopedia will send a private sign-in link. No password required.

Have you owned this model?Help preserve its real-world history by sharing your owner experience.

Share the details that would help another rider understand how this model fits, rides and holds up over time. Velopedia reviews every contribution before publication.

Add fit, maintenance and buyer detailsOptional · five additional fields

Your contribution goes directly to Velopedia’s private review queue. We’ll email an optional confirmation link plus a private edit and withdrawal link, but you do not need to confirm your email before an administrator can review or approve the submission.

Already contributed? Send me a fresh private edit link

For privacy, Velopedia shows the same confirmation whether or not an experience exists.

Gallery8 images

Checking current listings…

Find this bike on eBay

Search eBay US; check the model year, size and installed components. We may earn a commission from purchases.

Campaign

Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.

Scroll to Top