Rear tire: 29×2.1.
Velopedia Bicycle Archive
2019 Specialized Rockhopper Comp
Original specifications: geometry for 6 published sizes.
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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
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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.
Original buildAluminum
Frameset
| Frame Construction | 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 |
| Fork | SR Suntour XCM 29, coil spring, custom Multi-Circuit damping, quick-release, 46mm offset, 80/90/100mm of travel (size-specific) |
Drivetrain
| 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 |
| BB Shell Width | 73 mm |
| Cassette | SunRace, 9-Speed, 11-36t |
| Chain | KMC X9EPT, 9-speed, anti-corrosion coating w/ reusable Missing Link™ |
| Pedals | Specialized Dirt |
Brakes
| Brakes | (F) Shimano BR-MT200, hydraulic disc, 160/180mm / (R) Shimano BR-MT200, hydraulic disc, 160mm |
|---|
Cockpit & Contact Points
| 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 |
| Saddle | Henge Sport, steel rails, 143mm |
| Seatpost | Alloy, 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 |
|---|---|
| Rims | Specialized Alloy 29, 25mm internal width, disc-specific |
| Spokes | Stainless, 14g |
| Front Tire | Ground Control Sport, 29x2.3" |
| Rear Tire | Fast Trak Sport, 29x2.1" |
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Geometry
Frame measurements by size.
Frame diagram
Select an available measurement to locate it on the frame.
All geometry measurements6 sizes · 20 measurements
| Measurement | XS | S | M | L | XL | XXL |
|---|---|---|---|---|---|---|
| Seat tube | 370 mm | 400 mm | 430 mm | 470 mm | 520 mm | 560 mm |
| Effective top tube | 548 mm | 567 mm | 594 mm | 622 mm | 648 mm | 660 mm |
| Head tube | 95 mm | 95 mm | 95 mm | 110 mm | 125 mm | 125 mm |
| Head-tube angle | 69.8° | 69.8° | 69.8° | 69.8° | 69.8° | 69.8° |
| Seat-tube angle | 74° | 73.9° | 73.8° | 73.7° | 73.6° | 73.6° |
| Chainstay / rear center | 440 mm | 440 mm | 440 mm | 440 mm | 440 mm | 440 mm |
| Wheelbase | 1065 mm | 1084 mm | 1110 mm | 1138 mm | 1164 mm | 1176 mm |
| Bottom-bracket drop | 57.5 mm | 57.5 mm | 57.5 mm | 57.5 mm | 57.5 mm | 57.5 mm |
| Bottom-bracket height | 312.5 mm | 312.5 mm | 312.5 mm | 312.5 mm | 312.5 mm | 312.5 mm |
| Reach | 380 mm | 395 mm | 418 mm | 441 mm | 462 mm | 474 mm |
| Stack | 586 mm | 595 mm | 605 mm | 619 mm | 633 mm | 633 mm |
| Standover height | 719 mm | 765 mm | 776 mm | 807 mm | 837 mm | 861 mm |
| Fork offset / rake | 51 mm | 51 mm | 51 mm | 51 mm | 51 mm | 51 mm |
| Front center | 631 mm | 650 mm | 676 mm | 704 mm | 730 mm | 742 mm |
| Trail | 82 mm | 82 mm | 82 mm | 82 mm | 82 mm | 82 mm |
| Fork length / axle-to-crown | 486 mm | 496 mm | 506 mm | 506 mm | 506 mm | 506 mm |
| Seatpost length | 350 mm | 350 mm | 400 mm | 400 mm | 400 mm | 400 mm |
| Crank length | 165 mm | 170 mm | 175 mm | 175 mm | 175 mm | 175 mm |
| Stem length | 45 mm | 60 mm | 70 mm | 70 mm | 90 mm | 90 mm |
| Handlebar width | 720 mm | 720 mm | 720 mm | 720 mm | 720 mm | 720 mm |
Dimensions as recorded.
Gearing
Lower gears help on climbs. Higher gears suit higher speeds.
RPM = pedal turns per minute.
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 your current gearingChanged tires or gears? Calculate your setup.
Your changes apply to this calculation. The archived build stays unchanged.
Gearing results
| Measure | Original | Your setup |
|---|---|---|
| Lowest ratio | — | — |
| Highest ratio | — | — |
| Total range | — | — |
| Lowest-gear speed | — | — |
| Highest-gear speed | — | — |
Speeds are estimates. These calculations do not establish component compatibility or available tire clearance.
Parts & serviceability
Find replacement parts
9-speed, anti-corrosion coating w/ reusable Missing Link™
9-Speed, 11-36t
29x2.3"
Replacement search: 29x2.3 bicycle tire Before ordering: Check rim type and tire clearance.More parts (8)Fewer parts
29x2.1"
Replacement search: 29x2.1 bicycle tire Before ordering: Check rim type and tire clearance.hydraulic disc, 160/180mm / (R) Shimano BR-MT200, hydraulic disc, 160mm
9-speed
RapidFire Plus, 9-speed
12mm offset, 2-bolt clamp, 30.9mm
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.
Bike-specific inspection checklist 20 checks based on 6 archived component groups Open checklistClose checklist
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.
Identity and fit
Follow the full used-bike inspection order →Archived: 2019 Specialized Rockhopper Comp · Mountain · Published sizes: S, M, L, XL, XXL
Frame and fork
Inspect the frame and fork →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)
Suspension
Evaluate the suspension →Archived: Fork: SR Suntour XCM 29, coil spring, custom Multi-Circuit damping, quick-release, 46mm offset, 80/90/100mm of travel (size-specific)
Drivetrain
Check drivetrain wear →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™
Brakes
Inspect the brakes →Archived: Brakes: (F) Shimano BR-MT200, hydraulic disc, 160/180mm / (R) Shimano BR-MT200, hydraulic disc, 160mm
Wheels and tires
Check wheels and tires →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
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Gallery8 images
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Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.





