Which size or configuration labels have geometry for the 2012 Specialized Rockhopper 29?

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

What are the reach and stack of the 2012 Specialized Rockhopper 29 in size 19.0?

In size 19.0, reach is 430 mm and stack is 637 mm.

What is the head tube angle of the 2012 Specialized Rockhopper 29?

The head tube angle is 71 degrees in every size.

What does the 2012 Specialized Rockhopper 29 ship with?

The stock build includes SR Suntour XCR 29, 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 29

Reach 388 to 465 mm, stack 613 to 670 mm. The Rockhopper 29 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
Frame: 29
Geometry labels: 15.5, 17.5, 19.0, 21.0, and 23.0
Drivetrain: Shimano Acera
Fork: SR Suntour XCR 29
Geometry: Complete for every size
Source: specialized.com
Checked: Sep 5, 2026

Geometry by size

Geometry drawing, size 19.0, to scale.

2012 Specialized Rockhopper 29 geometry by size
Measurement	15.5	17.5	19.0	21.0	23.0
Reach(mm)	388	412	430	451	465
Stack(mm)	613	623	637	651	670
Head tube angle(°)	71	71	71	71	71
Seat tube angle(°)	73	73	73	73	73
Chainstay length(mm)	442	442	442	442	442
Wheelbase(mm)	1064	1091	1114	1139	1160
BB drop(mm)	63.5	63.5	63.5	63.5	63.5
BB height(mm)	310	310	310	310	310
Standover(mm)	754	789	821	853	890
Seat tube length(mm)	394	445	483	533	584
Head tube length(mm)	110	120	135	150	170

How to read a geometry chart

Stock build

10 parts

Suspension

SR Suntour XCR 29

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 29?: Geometry is listed for 15.5, 17.5, 19.0, 21.0, and 23.0.
What are the reach and stack of the 2012 Specialized Rockhopper 29 in size 19.0?: In size 19.0, reach is 430 mm and stack is 637 mm.
What is the head tube angle of the 2012 Specialized Rockhopper 29?: The head tube angle is 71 degrees in every size.
What does the 2012 Specialized Rockhopper 29 ship with?: The stock build includes SR Suntour XCR 29, 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.