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Hammerhead Karoo 2
Hammerhead Karoo 2
Hammerhead Karoo 2
Hammerhead Karoo 2
Hammerhead Karoo 2
Hammerhead Karoo 2
Hammerhead Karoo 2
Hammerhead Karoo 2
Hammerhead Karoo 2
Hammerhead Karoo 2
Hammerhead Karoo 2
Hammerhead Karoo 2
Hammerhead Karoo 2
Hammerhead Karoo 2
Hammerhead Karoo 2
Hammerhead Karoo 2
Hammerhead Karoo 2
Hammerhead Karoo 2
Hammerhead Karoo 2
Hammerhead Karoo 2

Hammerhead Karoo 2

Karoo 2 is designed to put your cycling experience first. Powerful features on this GPS bike computer make it simple for cyclists to do structured workouts, follow routes, connect to Strava and other third parties, and get the most out of every ride.

€399 EUR

Price inclusive of 21% VAT. Learn more.

Price inclusive of 20% VAT. Learn more.

4.6

1399 Reviews

4.6/5 | Based on 1399 reviews | Read all

Risk free icon 45-day Risk Free Trial

May ship separately from other items in your cart.

Please double-check your shipping address as we may not be able to change a wrong address before the order is dispatched.

Tracking information is sent in 3 to 5 business days.

Explore Karoo 2’s Best In Class Features

Image of Forge your own path with route building

Forge your own path
with route building

Quickly upload routes from 3rd party apps via the Hammerhead web dashboard, or build your own with a couple of taps. Once you've set your route you can quickly add custom points of interest and download it for use on other devices.

Image of See the road ahead with best-in-class navigation

See the road ahead with
best-in-class navigation

Cycling-specific navigation designed to help you never miss a turn. But with instant automatic rerouting, we've got you covered if you do.

Image of Keep your eyes on the road with beeper notifications

Keep your eyes on the road
with beeper notifications

Beeper alerts notify you of turns, approaching traffic, training milestones, low battery and smartphone notifications.

Image of Conquer the cols with CLIMBER

Conquer the cols
with CLIMBER

Our unique CLIMBER feature auto-detects upcoming climbs — even when you're not on pre-planned routes — and provides rich gradient insights so you can strategetically pace your ascent.

Image of See what matters with fully customizable UI

See what matters with fully
customizable UI

Choose the data you want to see, and how you want to see it. Profile-based settings make switching between riding styles easier and more powerful than ever.

Image of Optimize your ride with data made beautiful

Optimize your ride with data
made beautiful

We translate in-ride data into beautiful heart rate, power elevation, and gear shifting data visualizations for real-time optimization.

Image of Stay on top of what matters with smartphone notifications

Stay on top of what matters with
smartphone notifications

Receive notifications for incoming phone calls and text messages, so you don't miss anything important on your ride. Or leave your phone at home. We know sometimes you just want to enjoy your ride; the K2 doesn't require a phone for you to see the road ahead.

Image of Hit your goals with customizable<br>training plans

Hit your goals with customizable
training plans

It's easier than ever to follow your training plan to hit your goals with support for structured workouts, including automatic syncing from TrainingPeaks

Image of Keep on the cutting edge with frequent software update

Keep on the cutting edge with
frequent software updates

We provide the most agile software on the market, with constant improvements. New features and enhancements keep your riding experience on the cutting edge.

Image of Sync your rides for analysis

Sync your rides
for analysis

Upload your rides to connected platforms, for workout analysis and social sharing on the AXS web dashboard.

Image of Minimize drag with a low-profile mount

Minimize drag with a
low-profile mount

We know drag is a drag, so we reimagined the standard head unit mount to make it more aerodynamic — while maintaining strength with a large contact surface area.

Image of Save time and space with our simplified mounting system

Save time and space with our
simplified mounting system

We will also be including an adapter that allows you to attach Karoo 2 to a standard quarter-turn mount if you have aero handlebars or other non-compatible bar types.
See Compatible Mounts.

Image of Take full control with a high-res touchscreen

Take full control with
a high-res touchscreen

Our stunning smartphone-quality touchscreen let's you take control with a swipe of your finger, while ignoring rain droplets and mud. Enjoy the K2's eye-popping 17 million color screen, with 2x the pixel density of its closest rival.

Image of Ignore the weather report with outdoor-proofed design

Ignore the weather report with
outdoor-proofed design

If you can handle it, the Karoo 2 can too: with a water, dust, and mud resistant design, waterproof charging port, USB-C cover, and robust chassis.

What's In The Box?

Visual for What's In The Box? Visual for What's In The Box?

The Hammerhead Karoo 2
Your brand new Hammerhead Karoo 2: the best head-unit ever built.

Hammerhead Karoo 2 Mount
The most aerodynamic mount on the market: fits on to any set of 31.88mm handlebars, the road standard. 2.5mm Allen key Included. Learn More

Quarter-Turn Adapter
This adapter allows you to put the Karoo 2 on any Garmin-compatible bracket, for backward compatibility. See Compatible Mounts.

USB-A to USB-C Charging Cable
Fully charge your device in just over 2 hours with this charging cable.

Lanyard
For extra safety on bumpy roads or in handheld situations.

Quick Start Guide
A starter's guide to get you up and riding in no time. See our New Quick Start Guide for more detailed guidance.

Free standard shipping within Europe.

FREE STANDARD SHIPPING

Within Europe

45-day risk-free trial - Free return and full refund if you don't love your Karoo 2

45-DAY RISK-FREE TRIAL

Free return and full refund if you don't love your Karoo 2

Support available 7 days a week to ensure you get the most from your Karoo 2

WE PRIDE OURSELVES ON SUPPORT

Available 7 days a week to ensure you get the most from your Karoo 2

Reviews

Testimonial visual: The best GPS cycling computer you're not using.

"The best GPS cycling computer you're not using."

Testimonial visual: Faster than every other dedicated bike computer.

"Faster than every other dedicated bike computer."

Testimonial visual: The best screen and navigational metrics in the game.

"The best screen and navigational metrics in the game."

What makes the K2 the best head unit ever built?

Our bike computer has the highest quality screen, most detailed navigation, fastest evolving software, and best connectivity on the market. See how we stack-up.

Hammerhead Karoo 2 flat view

Hammerhead Karoo 2

Anti-glare, waterproof screen
High pixel density screen (292 PPI)
Maps with cyclist specific points of interest
Automatic, Predictive Path Technology with CLIMBER
Instant route creation with pin-drop
Lightning fast rerouting.
Frequent feature releases and upgrades
7 Days a week. Including Weekends and Holidays.
Automatic cloud back-up for routes and settings
32 GB total internal storage
Garmin 1030+ flat view

Garmin 1030+

Only with additional screen protector purchase
157 PPI: 46% lower resolution than K2
Maps with cyclist specific points of interest
Climbs only detected in pre-loaded routes
No pin-drop route creation
Longer than K2 reroute load time for every route length
Intermittent bug fixes
Limited support
No data back-up. Risk of data-loss.
32 GB total internal storage
Garmin Edge 1040 flat view

Garmin Edge 1040

Only with additional screen protector purchase
157 PPI: 46% lower resolution than K2
Maps with cyclist specific points of interest
Climbs only detected in pre-loaded routes
No pin-drop route creation
Longer than K2 reroute load time for every route length
Intermittent bug fixes
Limited support
No data back-up. Risk of data-loss.
32 GB total internal storage
Wahoo ELMNT Roam V2 flat view

Wahoo ELMNT Roam V2

Only with additional screen protector purchase
166 PPI: 43% lower resolution than K2
No native points of interest for cyclists
No climb detection
No pin-drop route creation
Longer than K2 reroute load time for every route length
Intermittent bug fixes
Limited support
No data back-up. Risk of data-loss.
Limited internal storage: 2.78 GB
Wahoo ELEMNT Bolt V2 flat view

Wahoo ELEMNT Bolt V2

Only with additional screen protector purchase
182 PPI: 38% lower resolution than K2
No native points of interest for cyclists
No climb detection
No pin-drop route creation
Longer than K2 reroute load time for every route length
Intermittent bug fixes
Limited support
No data back-up. Risk of data-loss.
Limited internal storage: 16GB
iPhone 13 flat view

iPhone 13

Only glare proof with additional screen protector purchase
High pixel density screen
No native points of interest for cyclists
No climb detection
Pin-drop instant route creation via Apple Maps
Lightning fast rerouting speed
Depends on navigational app used
Limited support
Cloud backup with Apple ID
128GB+ storage

Karoo 2 FAQs

Karoo 2 is a cycling computer that helps you get more from your rides. The most detailed and accurate maps and navigation unlock unparalleled exploration, and its stunning high definition touchscreen gives you the best visuals to check performance metrics or compete virtually via live Strava segments.
LEARN MORE
We built the Karoo 2 because, as cyclists, we believed the cycling computers available on the market were a decade behind where they should be.

As we stripped down the concept of a cycling computer and reimagined what it could do, our focus was always on how it could improve the act of cycling, delivering powerful features that make each and every ride an excellent experience. The result is a device that uses cutting-edge technology to unlock software solutions that enhance every aspect of your ride, from the pre-ride planning, through the in-ride experience, and all the way to post-ride analysis.

With the highest quality screen available on any cycling computer, mapping and navigation that brings new levels of detail and accuracy, constant software updates that keep it leading the pack, and on-board cellular connectivity, the Karoo 2 unlocks a whole new world of cycling.
LEARN MORE
Karoo 2 is designed to be simple and intuitive to use. Our Knowledge Base contains many more articles if you need help with specific features.

We have Instructions in 9 Languages:
English
Italian
Portuguese
Spanish
German
French
Korean
Japanese
Traditional Chinese

Here's a PDF of the updated Karoo 2 User Guide:
Karoo 2 - A Quick Start Guide.pdf
LEARN MORE
CLIMBER can help you pace yourself up every climb on every ride, whether you're following a Route or not. Turning on CLIMBER allows Karoo to detect climbs and show you the important details for each, such as the elevation profile and distance to the top.
LEARN MORE
Karoo 2 is built on a fiberglass-filled high-impact polycarbonate chassis with interlocking protective shells and weather-resistant gaskets and ports that give it an IP67 waterproof and dustproof rating. It has been rigorously tested for shock, vibration, and environmental fatigue making it a benchmark for durability and ruggedness.

The unit measures 100.45 x 60.25 x 19.5mm and weighs 130.8 grams. The Hammerhead mounting system weighs 35.8 grams.

It has the highest resolution for a bike computer screen at 3.2” Inch multi-point capacitive touchscreen.

The total storage capacity is 32 GB and about 3GB is reserved for the operating system and default applications, the rest is there to support your maps and data!

Karoo 2 has a Quad-core 1.1Ghz, CPU with 2GB of RAM. This ultra-fast yet ultra-efficient processor delivers smooth operation and data visualization.

The product has also been tested to ensure that prolonged or intense UV exposure does not discolor or degrade the materials.

The unit has been reliability tested for operation between -15°C and 55°C. We decided to keep the industrial design clean and the options for external power easier. The unit is IP67 Water-resistant and the USB-C Cover provides your Karoo 2 with extra resistance to mud, rain, salt, and more.

Reminder - Do Not charge the unit in wet conditions or if the charging port is full of moisture. See: Charging Karoo 2
LEARN MORE
The team at Hammerhead has developed a new bracket design that we feel is truly best in class and represents the future of bracket technology. However, as cyclists, we realize that our customers may have custom mounts, multiple bikes, or other mount restrictions.

To assure your Karoo 2 is backwards compatible, we include a Quarter-turn adapter (fits on all Garmin compatible mounts) as a thank you to each customer.
LEARN MORE
We currently ship our products to 32 countries:

US Store
The United States of America
South Africa

EU Store
Austria
Belgium
Bulgaria
Croatia
Cyprus
Czechia
DenmarkEstonia
Finland
France
Germany
Greece
Hungary
Ireland
Italy
Latvia
Lithuania
Luxembourg
Malta
Netherlands
Poland
Portugal
Romania
Slovakia
Slovenia
Spain
Sweden

UK Store
The United Kingdom

CA Store
Canada

AU Store
Australia
LEARN MORE
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