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2020 Specialized Stumpjumper Expert Carbon 27.5

Original specifications: geometry for 5 published sizes.

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At a glance

Model year
2020
Category
Mountain
Original MSRP
$5,920.00
Sizes
XS, S, M, L, XL
Colors
Gloss Navy / White Mountains, Satin Taupe / Sunset, Gloss Pro Blue / Vivid Pink
Geometry
5 manufacturer sizes
In this record
23 specifications · 8 archived images · original MSRP · geometry
Archive ID
900003829
Campaign
Original buildCarbon Fiber

Manufacturer catalog

Published sizes and colors

5 sizes · 3 colors

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

Published sizes

XSSMLXL

Published colors

Gloss Navy / White MountainsSatin Taupe / SunsetGloss Pro Blue / Vivid Pink

Frameset

Frame ConstructionFACT 11m carbon chassis and rear-end, asymmetrical design, 27.5 Trail Geometry, SWAT™ Door integration, threaded BB, fully enclosed internal cable routing, 12x148mm dropouts, sealed cartridge bearing pivots, replaceable derailleur hanger, 150mm of travel
Frame MaterialCarbon Fiber
ForkFOX FLOAT Performance, GRIP damper, 3-position micro-adjustment, tapered alloy steerer, 44mm offset, 150mm of travel
Fork MaterialAluminum
Rear ShockFOX FLOAT DPX2 Performance, Rx Trail Tune, EVOL Air sleeve, 3-position adjustment, 210x52.5mm

Drivetrain

ShiftersSRAM GX Eagle, trigger, 12-speed
Rear DerailleurSRAM GX Eagle, 12-speed
CranksetSRAM Descendant, Boost™, DUB, 170mm; chainrings: Steel, 30T
Bottom BracketSRAM DUB, BSA 73mm, Threaded
BB Shell Width73 mm
CassetteSRAM XG-1275 Eagle, 12-speed, 10-50t
ChainSRAM GX Eagle, 12-speed
PedalsTest Ride Pedals Provided by Specialized

Brakes

Brakes(F) SRAM Code R, 4-piston caliper, hydraulic disc, 200mm / (R) SRAM Code R, 4-piston caliper, hydraulic disc, 180mm

Cockpit & Contact Points

HandlebarSpecialized Trail, 7050 alloy, 8-degree backsweep, 6-degree upsweep, 27mm rise, 780mm, 31.8mm clamp
StemSpecialized Trail, forged alloy, 4-bolt, 5mm rise, 40mm
SaddleBridge 155 S2, Bridge 143 S3/S4/S5, Hollow cr-mo rails
SeatpostX-Fusion Manic, infinite adjustable, two-bolt head, bottom mount cable routing, remote SRL LE lever, 34.9mm, XS:100 mm, S: 125mm, M/L: 150mm, XL:170mm of travel

Wheels & Tires

Hubs(F) Specialized, sealed cartridge bearings, 15x110mm spacing, 28h / (R) DT Swiss 370, 3-Pawl System, SRAM XD driver body, 12mm thru-axle, 148mm spacing, 28h
RimsRoval Traverse Carbon 27.5, hookless carbon, 30mm inner width, hand-built, 2Bliss Ready
SpokesDT Swiss 370, 3-Pawl System, SRAM XD driver body, 12mm thru-axle, 148mm spacing, 28h
Front TireButcher, GRID casing, GRIPTON® compound, 2Bliss Ready, 27.5 x 2.6"
Rear TireEliminator, GRID TRAIL casing, GRIPTON® compound, 2Bliss Ready, 27.5 x 2.6"

Geometry

5 sizes · 20 measurements

Frame measurements by size.

All geometry measurements5 sizes · 20 measurements
MeasurementXSSMLXL
Seat tube380 mm380 mm410 mm455 mm505 mm
Effective top tube544 mm570 mm595 mm627 mm660 mm
Head tube100 mm105 mm110 mm140 mm155 mm
Head-tube angle66.5°65.5°65.5°65.5°65.5°
Seat-tube angle76.5°75.3°75°74.6°74.2°
Chainstay / rear center432 mm432 mm432 mm432 mm432 mm
Wheelbase1127 mm1157 mm1179 mm1212 mm1243 mm
Bottom-bracket drop28 mm21 mm21 mm21 mm21 mm
Bottom-bracket height325 mm336 mm336 mm336 mm336 mm
Reach405 mm415 mm435 mm455 mm480 mm
Stack581 mm592 mm596 mm623 mm637 mm
Standover height742 mm739 mm743 mm758 mm774 mm
Fork offset / rake46 mm46 mm46 mm46 mm46 mm
Front center696 mm726 mm748 mm780 mm812 mm
Trail103 mm112 mm112 mm112 mm112 mm
Fork length / axle-to-crown522 mm542 mm542 mm542 mm542 mm
Seatpost length325 mm375 mm438 mm438 mm478 mm
Crank length170 mm170 mm170 mm170 mm170 mm
Stem length40 mm40 mm40 mm50 mm50 mm
Handlebar width780 mm780 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 · 10–50T · 12-speed
Lowest0.60:1 Highest3.00:1 Total range500%
Estimated speed At 90 RPM Lowest gear4.5 mph Highest gear22.7 mph

Rear tire: 27.5×2.6.

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
SRAM GX Eagle, 12-speed Search: SRAM GX Eagle, 12-speed chain
Retailer offers · Affiliate links
Cassette · Original
SRAM XG-1275 Eagle, 12-speed, 10-50t
Retailer offers · Affiliate links
Front tire · Original
Butcher, GRID casing, GRIPTON® compound, 2Bliss Ready, 27.5 x 2.6" Replacement search: 27.5x2.6 hookless compatible bicycle tire Before ordering: Check tire approval and pressure for your rim.
More parts (6)
Bottom bracket · Original
SRAM DUB, BSA 73mm, Threaded
Retailer offers · Affiliate links
Pedals · Original
TEST RIDE PEDALS PROVIDED BY SPECIALIZED
Crankset · Original
SRAM Descendant, Boost™, DUB, 170mm; chainrings: Steel, 30T
Rear derailleur · Original
SRAM GX Eagle, 12-speed Search: SRAM GX Eagle, 12-speed rear derailleur Before ordering: Confirm whether the drivetrain is mechanical or electronic before ordering.
Shifters · Original
SRAM GX Eagle, trigger, 12-speed Search: SRAM GX Eagle, trigger, 12-speed shifter Before ordering: Confirm whether the drivetrain is mechanical or electronic before ordering.
Handlebar · Original
Specialized Trail, 7050 alloy, 8-degree backsweep, 6-degree upsweep, 27mm rise, 780mm, 31.8mm clamp

Based on the original build. Confirm the model, size and fit before ordering; installed parts may differ. As an Amazon Associate I earn from qualifying purchases. Velopedia may also earn from qualifying eBay purchases. Velopedia may also earn from qualifying retailer 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: 2020 Specialized Stumpjumper Expert Carbon 27.5 · Mountain · Published sizes: XS, S, M, L, XL

Archived: Frame: FACT 11m carbon chassis and rear-end, asymmetrical design, 27.5 Trail Geometry, SWAT™ Door integration, threaded BB, fully enclosed internal cable routing, 12x148mm dropouts, sealed cartridge bearing pivots, replaceable derailleur hanger, 150mm of travel · Fork: FOX FLOAT Performance, GRIP damper, 3-position micro-adjustment, tapered alloy steerer, 44mm offset, 150mm of travel · Aluminum

Archived: Fork: FOX FLOAT Performance, GRIP damper, 3-position micro-adjustment, tapered alloy steerer, 44mm offset, 150mm of travel · Rear shock: FOX FLOAT DPX2 Performance, Rx Trail Tune, EVOL Air sleeve, 3-position adjustment, 210x52.5mm

Archived: Shifters: SRAM GX Eagle, trigger, 12-speed · Rear derailleur: SRAM GX Eagle, 12-speed · Crankset: SRAM Descendant, Boost™, DUB, 170mm; chainrings: Steel, 30T · Bottom bracket: SRAM DUB, BSA 73mm, Threaded · Cassette: SRAM XG-1275 Eagle, 12-speed, 10-50t · Chain: SRAM GX Eagle, 12-speed

Archived: Brakes: (F) SRAM Code R, 4-piston caliper, hydraulic disc, 200mm / (R) SRAM Code R, 4-piston caliper, hydraulic disc, 180mm

Archived: Rims: Roval Traverse Carbon 27.5, hookless carbon, 30mm inner width, hand-built, 2Bliss Ready · Hubs: (F) Specialized, sealed cartridge bearings, 15x110mm spacing, 28h / (R) DT Swiss 370, 3-Pawl System, SRAM XD driver body, 12mm thru-axle, 148mm spacing, 28h · Front tire: Butcher, GRID casing, GRIPTON® compound, 2Bliss Ready, 27.5 x 2.6" · Rear tire: Eliminator, GRID TRAIL casing, GRIPTON® compound, 2Bliss Ready, 27.5 x 2.6"

Controls and contact points

Archived: Handlebar: Specialized Trail, 7050 alloy, 8-degree backsweep, 6-degree upsweep, 27mm rise, 780mm, 31.8mm clamp · Stem: Specialized Trail, forged alloy, 4-bolt, 5mm rise, 40mm · Seatpost: X-Fusion Manic, infinite adjustable, two-bolt head, bottom mount cable routing, remote SRL LE lever, 34.9mm, XS:100 mm, S: 125mm, M/L: 150mm, XL:170mm of travel · Saddle: Bridge 155 S2, Bridge 143 S3/S4/S5, Hollow cr-mo rails · Pedals: TEST RIDE PEDALS PROVIDED BY SPECIALIZED

Before and during the test ride

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Gallery8 images

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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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