Velopedia Bicycle Archive
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Compare published geometry, gearing and specifications for up to three bicycles.
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At a glance
Key differences
Supported differences are shown below. Data limitations are labeled separately.
- Frame geometry
2021 Specialized Rockhopper Comp has 10 mm more reach than 2024 Specialized Rockhopper Comp in the selected sizes.
More reach puts the head-tube reference farther forward, not necessarily the hands.
- Frame geometry
2021 Specialized Rockhopper Comp has 27 mm more stack than 2024 Specialized Rockhopper Comp in the selected sizes.
More stack places the frame reference higher, not necessarily the handlebar.
- Handling
2024 Specialized Rockhopper Comp has a 0.5° slacker head-tube angle than 2021 Specialized Rockhopper Comp in the selected sizes.
Fork offset, tire size and wheelbase also affect steering; head angle alone is not a handling verdict.
- Identity & price
2024 Specialized Rockhopper Comp had an original MSRP $100 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.
Gearing comparison
Lower gears help on climbs. Higher gears suit higher speeds.
RPM
RPM = pedal turns per minute.
Gearing unavailable for this size.
Gearing unavailable for this size.
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.
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.
Specification
2024 Specialized Rockhopper Comp
2021 Specialized Rockhopper Comp
Overview
Model Year
2024
2021
Brand
Specialized
Specialized
Model
Rockhopper Comp
Rockhopper Comp
Bicycle Type
Mountain
Mountain
Original MSRP
$899.99
$1,000.00
Colors
Gloss Metallic Spruce / Smoke, Satin Metallic Oak Green & Smoke, Gloss Purple Haze / Astral Blue
Gloss Clay / Satin Cast Blue Metallic, Satin Smoke / Satin Black, Gloss Metallic White Silver / Satin Black, Gloss Oasis / Tarmac Black
Sizes
XS, S, M, L, XL, XXL
S, M, L, XL, XXL
Weight
12.58 kg (27 lb, 11.7 oz)
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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
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
Frame Material
Aluminum
Aluminum
Fork
RockShox Judy, Solo Air, Turnkey damper, 46mm offset, QR, 80/90/100mm travel (size-specific), steel steerer
SR Suntour XCM 29, 30mm Stanchions, Rx Tune, coil spring, custom Multi-Circuit damping w/lockout, QR, 90/100mm travel (size-specific), 46mm offset
Fork Material
Steel
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Drivetrain
Shifters
Shimano Deore, RapidFire Plus, 10-speed
microSHIFT Advent, 9-speed
Rear Derailleur
Shimano Deore, RD-M5120, 10-speed
microSHIFT Advent, 1x9 w/ clutch
Crankset
Stout 1x, forged alloy
Stout 1x, forged alloy
Bottom Bracket
Square-tapered, 73mm, internal bearings, 122.5mm spindle
Square-tapered, 73mm, internal bearings, 122.5mm spindle
BB Shell Width
73 mm
73 mm
Cassette
Sunrace, 11-46t, 10spd
microSHIFT Advent, 9-speed, 11-42t
Chain
KMC, X10, EPT anti-corrosion coating, 10-speed w/ Missing Link™
KMC X9EPT, 9-speed, anti-corrosion coating w/ reusable Missing Link™
Pedals
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Specialized Body Geometry Fitness, platform, plastic
Brakes
Brakes
(F) Shimano BR-MT200, hydraulic disc ,180/160mm / (R) Shimano BR-MT200, hydraulic disc, 160 mm
(F) Shimano BR-MT200, hydraulic disc, 180mm / (R) Shimano BR-MT200, hydraulic disc, 180mm
Cockpit & Contact Points
Handlebar
Specialized, alloy, 9-degree backsweep, 15mm rise, 31.8mm
Specialized, alloy, 9-degree backsweep, 15mm 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, 155/143mm
Bridge Sport, steel rails
Seatpost
Alloy, 2-bolt clamp, 30.9mm
Alloy, 2-bolt clamp, 30.9mm
Wheels & Tires
Hubs
(F) Formula DC-20, 6-Bolt, disc, 100x9mm spacing, quick-release / (R) Formula DC-22, 6-Bolt freehub, disc, 135x9mm spacing, quick-release
(F) Shimano HB-TX505, Center Lock™ disc, 9x100mm spacing, quick-release, 28h / (R) Shimano FH-TX505, Center Lock™ disc, 9x135mm spacing, quick-release, 32h
Rims
Specialized Alloy, hookless, Tubeless ready, 25mm inner width
Stout Alloy, hookless, double-wall, 25mm inner width
Spokes
Stainless, 14g
Stainless, 14g
Front Tire
Fast Trak Sport, 650b/29x2.35"
Fast Trak Sport 29x2.35"
Rear Tire
Fast Trak Sport, 650b/29x2.35"
Fast Trak Sport 29x2.35"
Wheel Size
27.5; 29
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Geometry · choose a size for each bicycle
Geometry size
Reach
415 mm
425 mm
Stack
589 mm
616 mm
Effective top tube
589 mm
608 mm
Head-tube angle
68°
68.5°
Seat-tube angle
73.5°
73.5°
Seat tube
400 mm
400 mm
Head tube
105 mm
95 mm
Chainstay / rear center
440 mm
440 mm
Wheelbase
1118 mm
1128 mm
Bottom-bracket drop
43 mm
62 mm
Bottom-bracket height
310 mm
310 mm
Standover height
735 mm
754 mm
Fork offset / rake
42 mm
46 mm
Front center
682 mm
696 mm
Trail
97 mm
97 mm
Wheel size
27.5in
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Historical specifications are presented as an archival reference. Components may have varied by market, size, or production run.