Which size or configuration labels have geometry for the 2012 Specialized Rockhopper?

Geometry is listed for 13.0, 15.5, 17.5, 19.0, 21.0, and 23.0.

What are the reach and stack of the 2012 Specialized Rockhopper in size 19.0?

In size 19.0, reach is 432 mm and stack is 597 mm.

What is the head tube angle of the 2012 Specialized Rockhopper?

The head tube angle is 70 degrees in every size.

What does the 2012 Specialized Rockhopper ship with?

The stock build includes SR Suntour XCR, Shimano Acera, Specialized Captain Sport, and Tektro Draco.

Which years of the Specialized Rockhopper are on Quiver?

Quiver has the Specialized Rockhopper for 2012, 2026, 2025, 2024, 2023, 2022, 2021, 2020, 2019, 2018, 2017, 2015, 2014, 2011, 2010, and 2009.

2012

2012 Specialized Rockhopper

Reach 359 to 466 mm, stack 563 to 634 mm. The Rockhopper build comes with Shimano Acera shifting and Specialized Captain Sport tires.

Compare geometry

Source: specialized.com. Checked Sep 5, 2026.

Key facts

Brand: Specialized
Model: Rockhopper
Model year: 2012
Geometry labels: 13.0, 15.5, 17.5, 19.0, 21.0, and 23.0
Drivetrain: Shimano Acera
Fork: SR Suntour XCR
Geometry: Complete for every size
Source: specialized.com
Checked: Sep 5, 2026

Geometry by size

Geometry drawing, size 17.5, to scale.

2012 Specialized Rockhopper geometry by size
Measurement	13.0	15.5	17.5	19.0	21.0	23.0
Reach(mm)	359	399	416	432	452	466
Stack(mm)	563	563	588	597	616	634
Head tube angle(°)	70	70	70	70	70	70
Seat tube angle(°)	73	73	73	73	73	73
Chainstay length(mm)	426	426	426	426	426	426
Wheelbase(mm)	1033	1059	1085	1105	1131	1152
BB drop(mm)	31	31	31	31	31	31
BB height(mm)	305	305	305	305	305	305
Standover(mm)	695	738	774	802	836	872
Seat tube length(mm)	330	394	445	483	533	584
Head tube length(mm)	120	120	130	140	160	180

How to read a geometry chart

Stock build

10 parts

Suspension

SR Suntour XCR

Fork

Drivetrain

Shimano Acera

Shifter

Shimano Acera

Derailleur

Shimano Alivio

Derailleur

KMC X9

Chain

Wheels & Tires

Specialized Captain Sport

Tire

Alex Rims RH

Rim

Brakes

Tektro Draco

Brake

Cockpit

Specialized XCT

Grips

Seatpost & Saddle

Specialized Rockhopper

Saddle

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Quick answers

Which size or configuration labels have geometry for the 2012 Specialized Rockhopper?: Geometry is listed for 13.0, 15.5, 17.5, 19.0, 21.0, and 23.0.
What are the reach and stack of the 2012 Specialized Rockhopper in size 19.0?: In size 19.0, reach is 432 mm and stack is 597 mm.
What is the head tube angle of the 2012 Specialized Rockhopper?: The head tube angle is 70 degrees in every size.
What does the 2012 Specialized Rockhopper ship with?: The stock build includes SR Suntour XCR, Shimano Acera, Specialized Captain Sport, and Tektro Draco.
Which years of the Specialized Rockhopper are on Quiver?: Quiver has the Specialized Rockhopper for 2012, 2026, 2025, 2024, 2023, 2022, 2021, 2020, 2019, 2018, 2017, 2015, 2014, 2011, 2010, and 2009.