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2019 Specialized Stumpjumper ST Comp Alloy 29

Original specifications: geometry for 4 published sizes.

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At a glance

Model year
2019
Category
Mountain
Original MSRP
$3,020.00
Sizes
S, M, L, XL
Colors
Gloss White Sage / Black, Satin Nice Blue / Hyper
Geometry
4 manufacturer sizes
In this record
23 specifications · 2 archived images · original MSRP · geometry
Archive ID
900003441
Model history 1 other year
Campaign
Original buildAluminum

Manufacturer catalog

Published sizes and colors

4 sizes · 2 colors

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

Published sizes

SMLXL

Published colors

Gloss White Sage / BlackSatin Nice Blue / Hyper

Frameset

Frame ConstructionM5 alloy chassis and rear end, asymmetrical design, 29 Trail Geometry, threaded BB, fully enclosed internal cable routing, 12x148mm dropouts, sealed cartridge bearing pivots, replaceable derailleur hanger, 120mm of travel
Frame MaterialAluminum
ForkFOX FLOAT Rhythm 34, GRIP Damper, 51mm offset, 2-position sweep adjust, 15x110mm, tapered alloy steerer, 130mm of travel
Fork MaterialAluminum
Rear ShockFOX FLOAT DPS Performance, Rx Trail Tune, rebound and 3-position compression adjust, 190x42.5mm

Drivetrain

ShiftersShimano SLX, 11-speed
Rear DerailleurShimano SLX, Shadow Plus, 11-speed
CranksetRaceFace Ride, 24mm spindle, 170mm crankarm; chainrings: Steel, 30T
Bottom BracketThreaded BB, 24mm spindle
BB Shell Width24 mm
CassetteShimano SLX, 11-speed, 11-46t
ChainKMC X11, 11-speed w/ Missing Link™
PedalsSpecialized Dirt

Brakes

Brakes(F) Shimano MT-501, hydraulic disc, resin pad, 200mm / (R) Shimano MT-501, hydraulic disc, resin pad, 180mm

Cockpit & Contact Points

HandlebarSpecialized, 6061 alloy, 6-degree upsweep, 8-degree backsweep, 27mm rise, 780mm width
StemSpecialized Trail, 3D-forged alloy, 4-bolt, 6-degree rise
SaddleBody Geometry Phenom Comp, hollow Cr-Mo rails, 143mm
SeatpostX-Fusion Manic, infinite adjustable, two-bolt head, bottom mount cable routing, remote SRL LE lever, 34.9mm, S: 125mm, M/L/XL: 150mm of travel

Wheels & Tires

Hubs(F) Specialized, sealed cartridge bearings, 15x110mm spacing, 32h / (R) Specialized, sealed cartridge bearings, 12x148mm thru-axle, 32h
RimsDouble-wall, 27mm internal width
SpokesStainless, 14g
Front TireButcher, GRID Casing, GRIPTON® compound, 2Bliss Ready, 29x2.3"
Rear TirePurgatory, GRID casing, GRIPTON® compound, 2Bliss Ready, 29x2.3"

Geometry

4 sizes · 20 measurements

Frame measurements by size.

All geometry measurements4 sizes · 20 measurements
MeasurementSMLXL
Seat tube380 mm410 mm455 mm505 mm
Effective top tube570 mm593 mm624 mm657 mm
Head tube100 mm100 mm125 mm140 mm
Head-tube angle67.5°67.5°67.5°67.5°
Seat-tube angle75.8°75.5°75.1°74.7°
Chainstay / rear center437 mm437 mm437 mm437 mm
Wheelbase1143 mm1163 mm1192 mm1223 mm
Bottom-bracket drop39 mm39 mm39 mm39 mm
Bottom-bracket height333 mm333 mm333 mm333 mm
Reach415 mm435 mm455 mm480 mm
Stack612 mm612 mm635 mm649 mm
Standover height750 mm756 mm769 mm770 mm
Fork offset / rake51 mm51 mm51 mm51 mm
Front center708 mm728 mm758 mm789 mm
Trail99 mm99 mm99 mm99 mm
Fork length / axle-to-crown540 mm540 mm540 mm540 mm
Seatpost length376 mm438 mm438 mm438 mm
Crank length170 mm170 mm170 mm170 mm
Stem length45 mm45 mm45 mm45 mm
Handlebar width780 mm780 mm780 mm780 mm

Dimensions as recorded.

Gearing

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

RPM

RPM = pedal turns per minute.

All published sizes30T · 11–46T · 11-speed
Lowest0.65:1 Highest2.73:1 Total range418%
Estimated speed At 90 RPM Lowest gear5.1 mph Highest gear21.2 mph

Rear tire: 29×2.3.

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

Parts & serviceability

Find replacement parts

Original specifications
Chain · Original
KMC X11, 11-speed w/ Missing Link™
Retailer offers
Cassette · Original
Shimano SLX, 11-speed, 11-46t
Front tire · Original
Butcher, GRID Casing, GRIPTON® compound, 2Bliss Ready, 29x2.3" Replacement search: 29x2.3 bicycle tire Before ordering: Check rim type and tire clearance.
More parts (6)Fewer parts
Pedals · Original
Specialized Dirt
Crankset · Original
RaceFace Ride, 24mm spindle, 170mm crankarm; chainrings: Steel, 30T
Rear derailleur · Original
Shimano SLX, Shadow Plus, 11-speed
Shifters · Original
Shimano SLX, 11-speed
Handlebar · Original
Specialized, 6061 alloy, 6-degree upsweep, 8-degree backsweep, 27mm rise, 780mm width
Stem · Original
Specialized Trail, 3D-forged alloy, 4-bolt, 6-degree rise

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.

Bike-specific inspection checklist 22 checks based on 6 archived component groups Open checklistClose checklist
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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 Stumpjumper ST Comp Alloy 29 · Mountain · Published sizes: S, M, L, XL

Archived: Frame: M5 alloy chassis and rear end, asymmetrical design, 29 Trail Geometry, threaded BB, fully enclosed internal cable routing, 12x148mm dropouts, sealed cartridge bearing pivots, replaceable derailleur hanger, 120mm of travel · Fork: FOX FLOAT Rhythm 34, GRIP Damper, 51mm offset, 2-position sweep adjust, 15x110mm, tapered alloy steerer, 130mm of travel · Aluminum

Archived: Fork: FOX FLOAT Rhythm 34, GRIP Damper, 51mm offset, 2-position sweep adjust, 15x110mm, tapered alloy steerer, 130mm of travel · Rear shock: FOX FLOAT DPS Performance, Rx Trail Tune, rebound and 3-position compression adjust, 190x42.5mm

Archived: Shifters: Shimano SLX, 11-speed · Rear derailleur: Shimano SLX, Shadow Plus, 11-speed · Crankset: RaceFace Ride, 24mm spindle, 170mm crankarm; chainrings: Steel, 30T · Bottom bracket: Threaded BB, 24mm spindle · Cassette: Shimano SLX, 11-speed, 11-46t · Chain: KMC X11, 11-speed w/ Missing Link™

Archived: Brakes: (F) Shimano MT-501, hydraulic disc, resin pad, 200mm / (R) Shimano MT-501, hydraulic disc, resin pad, 180mm

Archived: Rims: Double-wall, 27mm internal width · Hubs: (F) Specialized, sealed cartridge bearings, 15x110mm spacing, 32h / (R) Specialized, sealed cartridge bearings, 12x148mm thru-axle, 32h · Front tire: Butcher, GRID Casing, GRIPTON® compound, 2Bliss Ready, 29x2.3" · Rear tire: Purgatory, GRID casing, GRIPTON® compound, 2Bliss Ready, 29x2.3"

Controls and contact points

Archived: Handlebar: Specialized, 6061 alloy, 6-degree upsweep, 8-degree backsweep, 27mm rise, 780mm width · Stem: Specialized Trail, 3D-forged alloy, 4-bolt, 6-degree rise · Seatpost: X-Fusion Manic, infinite adjustable, two-bolt head, bottom mount cable routing, remote SRL LE lever, 34.9mm, S: 125mm, M/L/XL: 150mm of travel · Saddle: Body Geometry Phenom Comp, hollow Cr-Mo rails, 143mm · Pedals: Specialized Dirt

Before and during the test ride

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Campaign

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

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