Bicycle Archive · Specification report

2018 Specialized Stumpjumper ST Alloy 27.5 - Women's

Velopedia Archive ID 900003892

Overview

Model year	2018
Brand	Specialized
Model	Stumpjumper ST Alloy 27.5 - Women's
Bicycle type	Mountain
Archive ID	900003892
Original MSRP	$1,870.00
Colors	Gloss Satin/Storm Grey/Black; Satin Gloss /Plum Purple/Acid Lava
Sizes	S; M; L; XS

Frameset

Frame construction	M5 alloy chassis and rear end, asymmetrical design, 27.5 Trail Geometry, threaded BB, fully enclosed internal cable routing, 12x148mm dropouts, sealed cartridge bearing pivots, replaceable derailleur hanger, 130mm of travel
Frame material	Aluminum
Fork	RockShox Recon RL, Solo Air, 42mm offset, rebound adjust, lockout, 15x110mm Boost™ Maxle® Lite thru-axle, 130mm of travel
Rear shock	X-Fusion 02 Pro RL, Women's Rx Tune, rebound adjust, lockout, 190x45.0mm

Drivetrain

Shifters	Shimano SLX, 11-speed
Rear derailleur	Shimano SLX, Shadow Plus, 11-speed
Crankset	SRAM NX Power Spline, aluminum, Boost™ 148, XS: 165mm crankarms, SM-LG: 170mm crankarms; chainrings: 32T
Bottom bracket	SRAM Power Spline
Cassette	SunRace, 11-speed, 11-46t
Chain	KMC X11, 11-speed w/ Missing Link™
Pedals	Specialized Dirt

Brakes

Brakes	(F) Tektro Gemini Comp, hydraulic disc, resin pad, 180/200mm rotor / (R) Tektro Gemini Comp, hydraulic disc, resin pad, 180mm rotor

Cockpit & contact points

Handlebar	Specialized Trail, 6061 alloy, 8-degree backsweep, 6-degree upsweep, 27mm rise, 780mm, 31.8mm clamp
Stem	Specialized, 3D-forged alloy, 4-bolt, 7-degree rise
Saddle	Body Geometry Myth Sport, steel rails, 155mm
Seatpost	Alloy, two-bolt clamp, 34.9mm

Wheels & tires

Hubs	(F) Specialized, sealed cartridge bearings, 15x110mm spacing, 32h / (R) Specialized, sealed cartridge bearings, 12x148mm thru-axle, 32h
Rims	700C disc, double-wall alloy, pinned
Spokes	Stainless, 14g
Front tire	Butcher, GRID Casing, GRIPTON® compound, 2Bliss Ready, 27.5 x 2.3"
Rear tire	Purgatory, GRID casing, GRIPTON® compound, 2Bliss Ready, 27.5 x 2.3"

Geometry · XS

Seat tube	380 mm
Effective top tube	544 mm
Head tube	100 mm
Head-tube angle	66.5°
Seat-tube angle	76.5°
Chainstay / rear center	432 mm
Wheelbase	1127 mm
Bottom-bracket drop	28 mm
Bottom-bracket height	325 mm
Reach	405 mm
Stack	581 mm
Standover height	742 mm
Fork offset / rake	46 mm
Front center	696 mm
Trail	103 mm
Fork length / axle-to-crown	522 mm
Seatpost length	375 mm
Crank length	165 mm
Stem length	50 mm
Handlebar width	750 mm

Geometry · S

Seat tube	380 mm
Effective top tube	568 mm
Head tube	105 mm
Head-tube angle	66.5°
Seat-tube angle	76.3°
Chainstay / rear center	432 mm
Wheelbase	1149 mm
Bottom-bracket drop	28 mm
Bottom-bracket height	325 mm
Reach	425 mm
Stack	586 mm
Standover height	744 mm
Fork offset / rake	46 mm
Front center	718 mm
Trail	103 mm
Fork length / axle-to-crown	522 mm
Seatpost length	375 mm
Crank length	170 mm
Stem length	50 mm
Handlebar width	750 mm

Geometry · M

Seat tube	410 mm
Effective top tube	591 mm
Head tube	110 mm
Head-tube angle	66.5°
Seat-tube angle	76°
Chainstay / rear center	432 mm
Wheelbase	1170 mm
Bottom-bracket drop	28 mm
Bottom-bracket height	325 mm
Reach	444 mm
Stack	590 mm
Standover height	749 mm
Fork offset / rake	46 mm
Front center	739 mm
Trail	103 mm
Fork length / axle-to-crown	522 mm
Seatpost length	375 mm
Crank length	170 mm
Stem length	50 mm
Handlebar width	750 mm

Geometry · L

Seat tube	455 mm
Effective top tube	624 mm
Head tube	140 mm
Head-tube angle	66.5°
Seat-tube angle	75.6°
Chainstay / rear center	432 mm
Wheelbase	1203 mm
Bottom-bracket drop	28 mm
Bottom-bracket height	325 mm
Reach	465 mm
Stack	618 mm
Standover height	761 mm
Fork offset / rake	46 mm
Front center	772 mm
Trail	103 mm
Fork length / axle-to-crown	522 mm
Seatpost length	435 mm
Crank length	170 mm
Stem length	50 mm
Handlebar width	750 mm

Manufacturer-published archive data. Confirm exact standards and dimensions before ordering parts or performing service. Generated by Velopedia on October 26, 2026.