Which size or configuration labels have geometry for the 2015 Specialized Demo I?

Geometry is listed for M, LONG, Long (High), Long (Low), Med (High), Med (Low), X-Long, X-Long (High), and X-Long (Low).

What are the reach and stack of the 2015 Specialized Demo I in size Med (High)?

In size Med (High), reach is 419 mm and stack is 613 mm.

What is the head tube angle of the 2015 Specialized Demo I?

The head tube angle is 64.3 degrees in size Med (High).

What does the 2015 Specialized Demo 8 I ship with?

The stock build includes RockShox BoXXer RC, SRAM X7, Specialized Butcher DH, and SRAM Guide R.

Which years of the Specialized Demo are on Quiver?

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

2015

2015 Specialized Demo I

Downhill

The 2015 Specialized Demo I sits in the middle of the range for downhill bikes, with a shorter rear center. Reach 419 to 456 mm, stack 613 to 616 mm. The Demo 8 I build comes with SRAM X-9 shifting and Specialized Butcher DH tires.

Compare with 180+ dh bikes

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

Key facts

Brand: Specialized
Model: Demo
Model year: 2015
Frame: I
Type: Downhill
Geometry labels: M, LONG, Long (High), Long (Low), Med (High), Med (Low), X-Long, X-Long (High), and X-Long (Low)
Drivetrain: SRAM X-9
Fork: RockShox BoXXer RC
Rear shock: Fox Van RC
Geometry: Some measurements unavailable
Source: specialized.com
Checked: Oct 22, 2026

Geometry by size

Geometry drawing, size X-Long, to scale.

2015 Specialized Demo I geometry by size
Measurement	M	LONG	Long (High)	Long (Low)	Med (High)	Med (Low)	X-Long	X-Long (High)	X-Long (Low)
Reach(mm)	419	439	439	439	419	419	456	456	456
Stack(mm)	613	616	616	616	613	613	616	616	616
Head tube angle(°)	63.5	63.5	64.3	63.5	64.3	63.5	63.5	64.3	63.5
Seat tube angle(°)	63	63	Not available	Not available	Not available	Not available	63	Not available	Not available
Effective top tube(mm)	Not available	Not available	594	594	573	573	Not available	612	612
Chainstay length(mm)	430	430	430	430	430	430	430	430	430
Wheelbase(mm)	1207	1228	1228	1228	1207	1207	1235	1235	1235
BB height(mm)	347	347	357	347	357	347	347	357	347
Standover(mm)	721	730	730	730	721	721	736	736	736
Seat tube length(mm)	393	417	417	417	393	393	417	417	417

Not available

Requested. Requests decide what we research next.

How to read a geometry chart

Stock build

16 parts

Suspension

RockShox BoXXer RC

ForkTravel 200mm

Fox Van RC

Rear shock

Drivetrain

SRAM X7

ShifterSpeeds 10

SRAM X-9

DerailleurSpeeds 9

SRAM PG-1030

CassetteSpeeds 10Range 11-25Freehub body Shimano HG

SRAM 1031

ChainSpeeds 10

SRAM Descendant

CranksetCrank length 165mmMaterial Aluminum

Specialized Bennies

Pedals

Wheels & Tires

Specialized Butcher DH

TireTPI 60 TPI

Specialized Slaughter DH

TireTPI 60 TPI

Specialized Hi Lo

Hub

Brakes

SRAM Guide R

BrakePiston count 4Brake type disc

Cockpit

Specialized Demo

HandlebarWidth 780mm

Specialized P.Series

StemLength 45mm

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 2015 Specialized Demo I?: Geometry is listed for M, LONG, Long (High), Long (Low), Med (High), Med (Low), X-Long, X-Long (High), and X-Long (Low).
What are the reach and stack of the 2015 Specialized Demo I in size Med (High)?: In size Med (High), reach is 419 mm and stack is 613 mm.
What is the head tube angle of the 2015 Specialized Demo I?: The head tube angle is 64.3 degrees in size Med (High).
What does the 2015 Specialized Demo 8 I ship with?: The stock build includes RockShox BoXXer RC, SRAM X7, Specialized Butcher DH, and SRAM Guide R.
Which years of the Specialized Demo are on Quiver?: Quiver has the Specialized Demo for 2015, 2025, 2024, 2023, 2022, 2021, 2020, 2019, 2018, 2017, 2016, 2014, 2012, 2011, 2010, and 2009.