Few technological advances have revolutionized elite cycling like the bike computer.
Bike computers – also known as “head units” – are small devices that attach to your stem or handlebars that calculate and display a range of information about your ride, such as speed, cadence, power, distance, elevation profiles, and GPS navigational information.
Having competed in many elite road races around Europe, I’ve seen first-hand how bike computers have become absolutely fundamental to bike racing, playing a central role in how tactics are planned, put into action, and redrawn in the heat of the action.
Bike computers are also an incredibly powerful tool to understand and shape your training, whether you’re a seasoned professional or a relative newcomer to cycling.
However, they’re also expensive – especially when paired with the additional sensors required to take full advantage of their features – and some traditionalists feel they take much of the instinct, romance, and tactical intuition out of bike racing.
This comprehensive guide is designed to demystify bike computers, offering a detailed look into their features, their pros and cons, and how they compare to simply using a smartphone for ride tracking.
We’ll be covering:
- What Is A Bike Computer, and How Do They Work?
- 4 Key Features of Bike Computers
- What Are The Benefits of Using a Bike Computer Vs a Smartphone?
- Pros And Cons
- Do You Really Need a Bike Computer?
- How To Choose The Right Bike Computer For You
Let’s dive in!
What Is A Bike Computer, and How Do They Work?
The bike computer, or GPS head unit, is akin to the cockpit of an airplane, but for your bicycle.
It’s a small, compact device mounted on your bicycle’s handlebars, designed to collect, display, and record information about your ride.
This little gadget has transformed the way cyclists approach their rides, regardless of whether they are commuters, weekend enthusiasts, or professional athletes.
Sensor placement
Sensors placed in various locations around the bike such as the pedals, wheel hubs, or crank arms, detect various signals such as bike speed, pedaling power, and cadence. Sensors may also be attached to the rider, such as heart rate monitors.
Once these sensors pick up the relevant data, they transmit it to the bike computer. Most modern bike computers employ wireless technology for this, although budget models may still use wired connections.
This data is then processed and displayed on the screen, providing you with real-time feedback on your performance and other metrics.
How Bike Computers Developed
The development of bike computers can be traced back to Curtis H. Veeder’s invention of the cyclometer in 1895.
The mechanical odometers counted the revolutions of the wheel to calculate distance.
The introduction of electronic components enabled more precise measurements and the addition of features such as speedometers.
The real game-changer, however, was the advent of GPS (Global Positioning System). Bike computers equipped with GPS could now provide location-based data, giving rise to route tracking or navigation, for example.
In recent years, we’ve seen the rise of ANT+ and Bluetooth, making them integrated and capable of connecting with other devices like heart rate monitors, power meters, and even smartphones.
Different Types/Models of Bike Computers
On one hand, you have the basic models, which typically offer speed and distance tracking, and perhaps a few more metrics like time and calorie burn.
On the other hand, you have advanced models that are brimming with features – GPS, power output tracking, connectivity with smartphones and other devices, and so much more.
Notable brands in this space include Garmin, Wahoo, and Polar, each offering a range of products catering to different needs and price points.
- Garmin is the market leader, renowned for its feature-rich devices and reliable performance.
- Wahoo, while a relatively new entrant, has gained popularity for its user-friendly devices and intuitive software.
- Polar is known for its expertise and excels in tracking physiological data.
4 Key Features of Bike Computers
One of the compelling attractions of a bike computer is the plethora of features it brings to the table.
From tracking your ride stats to helping you navigate unexplored routes, it does more than just crunch numbers.
1. Speed and distance tracking
Speed tracking allows you to see your current speed, which is a crucial bit of information whether you’re racing or just out for a leisurely ride.
Meanwhile, distance tracking lets you know exactly how far you’ve pedaled. This is useful for setting and achieving distance goals.
2. Heart rate and power data
Heart rate monitoring requires a sensor, typically a chest strap, which measures your heart rate and transmits it to the bike computer.
It is essential for those following structured training plans or targeting specific training zones for optimum performance.
Cadence is also a vital element of cycling performance, and can be measured and displayed by a bike computer via a cadence sensor.
Power data measures how hard you’re turning the pedals, via a power meter installed on your bike.
This data, displayed in Watts, is especially crucial to professional cyclists due to the importance of the power-to-weight ratio in elite cycling.
Professionals will also know with a high degree of accuracy the power output they can sustain for a set duration. Being able to monitor this data in real-time plays a critical role in putting tactics into action and managing exertion across a race.
However, it’s worth noting that power meters are an expensive bit of kit. While some bike computers will be capable of estimating your power output based on other data, accurate tracking is only possible with a dedicated power meter.
3. Navigation and mapping
With a bike computer, you can plan your route before you start and follow it on the screen. Some models even offer turn-by-turn navigation, just like a car GPS.
This is incredibly useful for those who like to explore new routes or undertake long-distance rides. Alternatively, the GPS data can be tracked while you ride, allowing you to analyze, save, or share your route afterward.
GPS can also be used to show your position on the elevation profile of a pre-defined route or to track the elevation of your ride as you go.
4. Connectivity and data sharing
Some bike computer models can connect with your smartphone, either directly or via an app, enabling a host of useful features.
You can receive call and message alerts, control your music, or even upload your ride data to fitness-tracking platforms for detailed analysis.
Some of them also allow you to share your data on social media or compete with friends in virtual challenges.
For example, connecting Strava with a bike computer offers several advantages for cyclists and a fun way of keeping active and competitive.
It allows for accurate ride tracking and seamless data integration between the devices, enabling centralized record-keeping and access to detailed statistics on the app.
Additionally, cyclists can engage with the Strava community, share rides, and participate in challenges.
What Are The Benefits of Using A Bike Computer Vs A Smartphone?
The advent of smartphones has essentially put a mini-computer in our pockets.
So, you might be wondering, why invest in an expensive bike computer when you already have a smartphone that could do many of the same things?
Let’s dive into this bike computer vs phone comparison and explore the strengths and weaknesses of both.
1. Functionalities and limitations
Smartphones are extremely versatile. With the right apps, they can track your speed, distance, route, and more.
Furthermore, they offer a range of non-cycling related features, like music, communication, and photography.
However, smartphones do have limitations when it comes to on-bike use. The battery life is significantly worse than that of bike computers when running GPS-intensive tracking apps.
A lengthy ride could leave you with a dead phone. Bike computers, in contrast, are designed for long-term use on the road, with battery lives extending up to 15-20 hours of active use.
The data accuracy of a smartphone app can also fall short. Bike computers are engineered specifically for cycling and tend to offer more reliable and robust data, which is particularly important if you’re monitoring training progress or using it in racing situations.
Safety and durability on the road
Smartphones are more fragile than bike computers, and the risk of damaging your phone in a fall or due to exposure to the elements can be high.
Bike computers are designed with ruggedness in mind, built to endure the tough weather conditions, vibrations, and impacts that come with cycling.
Costs of investment
While some basic bike computer models can be quite affordable, starting at around $50, the price for high-end models can reach as much as $800.
Furthermore, some features, like detailed mapping, might require a subscription, adding to the ongoing cost – though many smartphone cycling apps will also require subscription fees.
However, because most of us likely already own a smartphone, cost is one of the major factors in favor of smartphones over bike computers.
The Pros and Cons of Bike Computers
Just like any piece of technology, bike computers come with their share of pros and cons.
They offer plenty of advantages that can make your ride more informed, efficient, and safe. At the same time, they also have drawbacks that are worth considering.
Advantages
- Increased awareness and control over ride metrics: Knowing your speed, distance, cadence, heart rate, or power output can completely transform your experience.
- Enhanced safety and exploration possibilities: You can plan your route ahead of time and follow it easily during your ride.
- Real-time feedback and post-ride analysis: You can track your progress, monitor your fitness levels, and adjust your training plan based on solid data.
Disadvantages
- Cost: High-end models can be expensive, and even mid-range ones might seem like a significant investment. And don’t forget the costs associated with mounts, or subscription-based features.
- Data overload: While having lots of data can be beneficial, it can also be overwhelming, especially for beginners. It’s easy to get caught up in the numbers and lose sight of the simple joy of cycling.
- Technical glitches and learning curve: This might involve anything from initial setup difficulties, occasional connectivity issues, or simply figuring out how to navigate the menus. Patience and a willingness to learn are key.
Do You Really Need a Bike Computer?
For casual riders, who might cycle for leisure or exercise but not follow a structured training plan, a bike computer may seem like an unnecessary investment.
In such cases, a smartphone with a fitness tracking app could be sufficient to provide basic metrics like speed and distance.
If you occasionally like to check how long or fast you’ve ridden, without too much concern for pinpoint accuracy or in-depth data, sticking with a smartphone could be the sensible choice.
Next up, we have commuters who use their bike as a means of transportation, perhaps riding to work or running errands. For them, a bike computer could be a useful tool, especially for models with navigation features.
It can provide route guidance, monitor your speed to ensure you’re not late, and even track your fitness progress. However, considering the cost and the risk of theft in public places, some commuters might prefer using a smartphone or a less expensive model.
For serious cyclists and professionals, a bike computer becomes a necessity. The detailed metrics bike computers monitor are essential for advanced training.
They provide the data needed to gauge effort, monitor progress, and plan workouts.
Plus, with GPS tracking and analytics, these riders can get a detailed picture of their performance, aiding in continuous improvement.
Finally, let’s consider adventure cyclists and bike tourers. These are folks who undertake multi-day trips, often through unfamiliar or remote terrain. For them, robust navigation features are invaluable.
The ability to plan routes and monitor vital stats during the journey can enhance safety, efficiency, and enjoyment.
4 Steps To Help Choose The Right Bike Computer For You
Now that we’ve explored the nitty-gritty of bike computers, let’s discuss how to go about choosing the right one for you. After all, with so many options, picking the right one can seem daunting.
Identify your needs and budget
If you’re an athlete, you may need a model with complete metrics, while a casual rider might be happy with just speed and distance.
Also, setting a budget will help narrow down your options.
Compare brands and models
When comparing, look at the reliability of the brand, and the reviews. Remember, a higher price doesn’t always mean a better fit for you. It’s about finding a device that offers what you need at a price you’re comfortable with.
User-friendliness and durability
It should be easy to use, with an intuitive interface and clear display. You don’t want to be fumbling with buttons while riding.
Also, consider the durability. It should be robust enough to handle outdoor conditions and withstand bumps or falls.
After-sales support
Ideally, you want a brand that offers reliable customer service and a good warranty policy.
Even the best devices can encounter issues, so knowing that the company stands behind its product can provide peace of mind.
Now, we’d love to hear from you!
Do you already have a bike computer? Is it a dedicated device or do you use your smartphone? How do you find it? Do you consider it a worthy investment?
Sharing your experiences in the comments below can help other readers, and we’re always eager to hear about your adventures on two wheels!
