Which size or configuration labels have geometry for the 2019 Specialized Demo Alloy 27.5?

Geometry is listed for M, SHORT, LONG, and EXTRA LONG.

What are the reach and stack of the 2019 Specialized Demo Alloy 27.5 in size LONG?

In size LONG, reach is 440 mm and stack is 614 mm.

What is the head tube angle of the 2019 Specialized Demo Alloy 27.5?

The head tube angle is 63.5 degrees in every size.

What does the 2019 Specialized Demo Alloy 27.5 ship with?

The stock build includes RockShox BoXXer RC 27.5, SRAM GX, Specialized Butcher, and SRAM Guide RE.

Which years of the Specialized Demo are on Quiver?

Quiver has the Specialized Demo for 2019, 2025, 2024, 2023, 2022, 2021, 2020, 2018, 2017, 2016, 2015, 2014, 2012, 2011, 2010, and 2009.

2019

2019 Specialized Demo Alloy 27.5

Downhill

The 2019 Specialized Demo Alloy 27.5 sits more upright than most downhill bikes. Reach 395 to 460 mm, stack 614 to 614 mm. The Demo Alloy 27.5 build comes with SRAM GX shifting and Specialized Butcher tires.

Compare with 180+ dh bikes

Source: specialized.com. Checked Oct 22, 2026.

Key facts

Brand: Specialized
Model: Demo
Model year: 2019
Frame: Alloy 27.5
Type: Downhill
Geometry labels: M, SHORT, LONG, and EXTRA LONG
Drivetrain: SRAM GX
Fork: RockShox BoXXer RC 27.5
Rear shock: Fox Van RC
Geometry: Complete for every size
Source: specialized.com
Checked: Oct 22, 2026

Geometry by size

Geometry drawing, size SHORT, to scale.

2019 Specialized Demo Alloy 27.5 geometry by size
Measurement	M	SHORT	LONG	EXTRA LONG
Reach(mm)	420	395	440	460
Stack(mm)	614	614	614	614
Head tube angle(°)	63.5	63.5	63.5	63.5
Seat tube angle(°)	74	74	74	74
Effective top tube(mm)	596	571	616	636
Chainstay length(mm)	430	430	430	430
Wheelbase(mm)	1208	1183	1228	1248
BB drop(mm)	12	12	12	12
BB height(mm)	342	342	342	342
Standover(mm)	698	698	698	698
Seat tube length(mm)	394	394	419	419
Head tube length(mm)	105	105	105	105

How to read a geometry chart

Stock build

12 parts

Suspension

RockShox BoXXer RC 27.5

ForkWheel size 27.5Front axle / spacing 20x110Offset 48mm

Fox Van RC

Rear shock

Drivetrain

SRAM GX

ShifterSpeeds 10

SRAM GX

Derailleur

SRAM PG-1030

CassetteSpeeds 10Freehub body Shimano HG

SRAM PC-1031

Chain

SRAM Descendant

CranksetMaterial Aluminum

Wheels & Tires

Specialized Butcher

TireWheel size 27.5Width 2.5TPI 60 TPIBead FoldingTubeless ready 2Bliss ReadyWeight ~1060 g

Brakes

SRAM Guide RE

BrakePiston count 4

Cockpit

Specialized two-piece

Stem

Specialized Sip Grip

Grips

Seatpost & Saddle

Specialized Phenom Comp

Saddle

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Quick answers

Which size or configuration labels have geometry for the 2019 Specialized Demo Alloy 27.5?: Geometry is listed for M, SHORT, LONG, and EXTRA LONG.
What are the reach and stack of the 2019 Specialized Demo Alloy 27.5 in size LONG?: In size LONG, reach is 440 mm and stack is 614 mm.
What is the head tube angle of the 2019 Specialized Demo Alloy 27.5?: The head tube angle is 63.5 degrees in every size.
What does the 2019 Specialized Demo Alloy 27.5 ship with?: The stock build includes RockShox BoXXer RC 27.5, SRAM GX, Specialized Butcher, and SRAM Guide RE.
Which years of the Specialized Demo are on Quiver?: Quiver has the Specialized Demo for 2019, 2025, 2024, 2023, 2022, 2021, 2020, 2018, 2017, 2016, 2015, 2014, 2012, 2011, 2010, and 2009.