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2018 Specialized Stumpjumper Comp Carbon 27.5

Original specifications: geometry for 4 published sizes.

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At a glance

Model year
2018
Category
Mountain
Original MSRP
$3,500.00
Sizes
S, M, L, XL
Colors
Gloss Carbon/Chameleon, Gloss Gallardo Orange/Carbon/Black
Geometry
4 manufacturer sizes
In this record
21 specifications · 2 archived images · original MSRP · geometry
Archive ID
900003690
Model history 1 other year
Campaign
Original buildCarbon Fiber

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 Carbon/ChameleonGloss Gallardo Orange/Carbon/Black

Frameset

Frame ConstructionFACT 9m carbon front chassis w/ Specialized M5 Aluminum rear end, 27.5 Trail Geometry, SWAT™ Door integration, PF30 BB, fully enclosed internal cable routing, 12x148mm dropouts, sealed cartridge bearing pivots, replaceable derailleur hanger, 150mm of travel
Frame MaterialCarbon Fiber
ForkRockShox Revelation RC, Solo Air, rebound / low speed compression adjust, tapered steerer, 46mm offset, 15mm Maxle® Stealth thru-axle, 15x110mm Boost™, 150mm of travel
Rear ShockRockShox Monarch RT, Rx Trail Tune, AUTOSAG, rebound and 2-position compression adjust, 197x48mm

Drivetrain

ShiftersSRAM GX, trigger, 11-speed
Rear DerailleurSRAM GX, long cage, 11-speed
CranksetRace Face Aeffect, PF30; chainrings: Steel, 30T
Bottom BracketRace Face PF30
CassetteSRAM XG 1150, 11-speed, 10-42t
ChainKMC X11, 11-speed w/ Missing Link™
PedalsSpecialized Platform, Cr-Mo, 9/16" spindle

Brakes

Brakes(F) SRAM Guide R, hydraulic disc, organic pads, Guide S4 4-piston caliper, 200/180mm rotor / (R) SRAM Guide R, hydraulic disc, organic pads, Guide S4 4-piston caliper, 180/160mm rotor

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 Henge Comp, hollow Cr-Mo rails, 143mm
SeatpostCommand Post IRcc, 12-position micro-height adjustable, alien head design, bottom mount cable routing, remote SRL lever, 30.9mm, S: 100mm, M/L/XL: 125mm of travel

Wheels & Tires

Hubs(F) Specialized, sealed cartridge bearings, 15x110mm spacing, 24h / (R) Specialized, sealed cartridge bearings, 12x148mm thru-axle, 28h
RimsRoval Traverse 27.5, hookless alloy, 29mm internal width, tubeless-ready, 24/28h
SpokesDT Swiss Industry, stainless, 3-cross, 2.0"
Front TireButcher, GRID casing, Gripton compound, 2Bliss Ready, 27.5 x 2.6"
Rear TireButcher, GRID casing, Gripton compound, 2Bliss Ready, 27.5 x 2.6"

Geometry

4 sizes · 19 measurements

Frame measurements by size.

All geometry measurements4 sizes · 19 measurements
MeasurementSMLXL
Seat tube396 mm430 mm468 mm523 mm
Effective top tube558 mm587 mm618 mm646 mm
Head tube105 mm115 mm125 mm95 mm
Head-tube angle67°67°67°67°
Seat-tube angle74°74°74°74°
Chainstay / rear center420 mm420 mm420 mm420 mm
Wheelbase1096 mm1126 mm1158 mm1184 mm
Bottom-bracket drop18 mm18 mm18 mm18 mm
Reach388 mm414 mm442 mm464 mm
Stack590 mm599 mm608 mm617 mm
Standover height742 mm748 mm762 mm764 mm
Fork offset / rake46 mm46 mm46 mm46 mm
Front center677 mm706 mm738 mm764 mm
Trail104 mm104 mm104 mm104 mm
Fork length / axle-to-crown542 mm542 mm542 mm542 mm
Seatpost length390 mm430 mm430 mm430 mm
Crank length170 mm170 mm170 mm170 mm
Stem length45 mm60 mm60 mm60 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 · 10–42T · 11-speed
Lowest0.71:1 Highest3.00:1 Total range420%
Estimated speed At 90 RPM Lowest gear5.4 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
KMC X11, 11-speed w/ Missing Link™
Cassette · Original
SRAM XG 1150, 11-speed, 10-42t
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
Race Face PF30
Crankset · Original
Race Face Aeffect, PF30; chainrings: Steel, 30T
Rear derailleur · Original
SRAM GX, long cage, 11-speed Search: SRAM GX, long cage, 11-speed rear derailleur Before ordering: Confirm whether the drivetrain is mechanical or electronic before ordering.
Retailer offers · Affiliate links
Shifters · Original
SRAM GX, trigger, 11-speed Search: SRAM GX, trigger, 11-speed shifter Before ordering: Confirm whether the drivetrain is mechanical or electronic before ordering.
Stem · Original
Specialized Trail, 3D forged alloy, 4-bolt, 6-degree rise
Rims · Original
Roval Traverse 27.5, hookless alloy, 29mm internal width, tubeless-ready, 24/28h

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 23 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: 2018 Specialized Stumpjumper Comp Carbon 27.5 · Mountain · Published sizes: S, M, L, XL

Archived: Frame: FACT 9m carbon front chassis w/ Specialized M5 Aluminum rear end, 27.5 Trail Geometry, SWAT™ Door integration, PF30 BB, fully enclosed internal cable routing, 12x148mm dropouts, sealed cartridge bearing pivots, replaceable derailleur hanger, 150mm of travel · Fork: RockShox Revelation RC, Solo Air, rebound / low speed compression adjust, tapered steerer, 46mm offset, 15mm Maxle® Stealth thru-axle, 15x110mm Boost™, 150mm of travel

Archived: Fork: RockShox Revelation RC, Solo Air, rebound / low speed compression adjust, tapered steerer, 46mm offset, 15mm Maxle® Stealth thru-axle, 15x110mm Boost™, 150mm of travel · Rear shock: RockShox Monarch RT, Rx Trail Tune, AUTOSAG, rebound and 2-position compression adjust, 197x48mm

Archived: Shifters: SRAM GX, trigger, 11-speed · Rear derailleur: SRAM GX, long cage, 11-speed · Crankset: Race Face Aeffect, PF30; chainrings: Steel, 30T · Bottom bracket: Race Face PF30 · Cassette: SRAM XG 1150, 11-speed, 10-42t · Chain: KMC X11, 11-speed w/ Missing Link™

Archived: Brakes: (F) SRAM Guide R, hydraulic disc, organic pads, Guide S4 4-piston caliper, 200/180mm rotor / (R) SRAM Guide R, hydraulic disc, organic pads, Guide S4 4-piston caliper, 180/160mm rotor

Archived: Rims: Roval Traverse 27.5, hookless alloy, 29mm internal width, tubeless-ready, 24/28h · Hubs: (F) Specialized, sealed cartridge bearings, 15x110mm spacing, 24h / (R) Specialized, sealed cartridge bearings, 12x148mm thru-axle, 28h · Front tire: Butcher, GRID casing, Gripton compound, 2Bliss Ready, 27.5 x 2.6" · Rear tire: Butcher, GRID casing, Gripton compound, 2Bliss Ready, 27.5 x 2.6"

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: Command Post IRcc, 12-position micro-height adjustable, alien head design, bottom mount cable routing, remote SRL lever, 30.9mm, S: 100mm, M/L/XL: 125mm of travel · Saddle: Body Geometry Henge Comp, hollow Cr-Mo rails, 143mm · Pedals: Specialized Platform, Cr-Mo, 9/16" spindle

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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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