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Specialized2018

2018 Specialized Stumpjumper ST Men's Expert 27.5

Trail

The 2018 Specialized Stumpjumper ST Men's Expert 27.5 sits more aggressive than most trail bikes. Reach 425 to 490 mm, stack 586 to 631 mm. The Stumpjumper ST Men's Expert 27.5 build comes with SRAM GX Eagle shifting and Specialized Butcher tires.

Source: specialized.com. Checked .

Key facts

Model year
2018
Type
Trail
Geometry labels
S, M, L, and XL
Drivetrain
SRAM GX Eagle
Geometry
Complete for every size
Source
specialized.com
Checked

Geometry by size

2018 Specialized Stumpjumper ST Men's Expert 27.5 geometry drawing, size MSide view of the 2018 Specialized Stumpjumper ST Men's Expert 27.5 frame in size M, drawn to scale from its published geometry, with lettered dimension lines.J 1170A 444mmB 590mmJ 1170mmH 432mmK 28mmC 591mmD 66.5°E 76.0°F 110mmG 410mmN 325mmL 735mmM 522mm
Geometry drawing, size M, to scale.
2018 Specialized Stumpjumper ST Men's Expert 27.5 geometry by size
MeasurementSMLXL
Reach(mm)425444465490
Stack(mm)586590618631
Head tube angle(°)66.566.566.566.5
Seat tube angle(°)76.37675.675.2
Effective top tube(mm)568591624657
Chainstay length(mm)432432432432
Wheelbase(mm)1149117012031234
BB drop(mm)28282828
BB height(mm)325325325325
Standover(mm)731735750766
Seat tube length(mm)380410455505
Fork length(mm)522522522522
Head tube length(mm)105110140155

Stock build

14 parts

Suspension

RockShox Pike RC
ForkFrom the manufacturer: Wheel size 27.5From the manufacturer: Front axle / spacing 15x110 (Boost)From the manufacturer: Offset 46mm
Rear shockFrom the manufacturer: Eye-to-eye length 190mmFrom the manufacturer: Stroke 45mm

Drivetrain

SRAM GX Eagle
ShifterFrom the manufacturer: Speeds 12
SRAM GX Eagle
Derailleur
SRAM GX Eagle
CassetteFrom the manufacturer: Range 10-50Weight 452 g
SRAM GX Eagle
Chain
CranksetFrom the manufacturer: Spindle / BB interface 30mmFrom the manufacturer: Crank length 170mmFrom the manufacturer: Material Aluminum

Wheels & Tires

TireFrom the manufacturer: Wheel size 27.5From the manufacturer: Width 2.3From the manufacturer: Bead FoldingFrom the manufacturer: Tubeless ready 2Bliss ReadyWeight ~1060 g
TireFrom the manufacturer: Wheel size 27.5From the manufacturer: Width 2.3From the manufacturer: Tubeless ready 2Bliss Ready
Roval Traverse
Rim

Brakes

SRAM Guide R
BrakeFrom the manufacturer: Piston count 4From the manufacturer: Brake type disc

Cockpit

Seatpost & Saddle

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Quick answers

Which size or configuration labels have geometry for the 2018 Specialized Stumpjumper ST Men's Expert 27.5?
Geometry is listed for S, M, L, and XL.
What are the reach and stack of the 2018 Specialized Stumpjumper ST Men's Expert 27.5 in size L?
In size L, reach is 465 mm and stack is 618 mm.
What is the head tube angle of the 2018 Specialized Stumpjumper ST Men's Expert 27.5?
The head tube angle is 66.5 degrees in every size.
What does the 2018 Specialized Stumpjumper ST Men's Expert 27.5 ship with?
The stock build includes RockShox Pike RC, SRAM GX Eagle, Specialized Butcher, and SRAM Guide R.
Which years of the Specialized Stumpjumper ST are on Quiver?
Quiver has the Specialized Stumpjumper ST for 2018, 2020, and 2019.

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