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Road Cycling and Mountain Biking Blog


Cycling and Environmental Suistainability

The comparison between electronic and mechanical gear shifting is a matter that often arises when looking for a new bicycle or considering an upgrade to the current bike. The following are some of the common questions you have asked, and we will try to provide an overview to help you make an informed decision. Here is an analysis of the advantages and disadvantages of electronic gear shifting in cycling:


Precision in gear shifting: Electronic gear shift models boast significantly higher precision compared to traditional mechanical systems. This advanced technology allows for quicker and smoother gear changes, eliminating the need for frequent maintenance.

Ease of use: Electronic groups are often more intuitive to use, making them particularly suitable for cycling beginners or those who struggle with mechanical shifts. You simply need to press one or two buttons, depending on the manufacturer, to make a gear transition. Additionally, some systems offer the convenience of automatic shifting, further simplifying cyclists’ lives. In some cases, you can even hold the button until you reach the desired gear ratio.

High performance with repeated shifts: Electronic shifting ensures consistent performance from start to finish, whereas mechanical groups can exhibit variations in performance depending on cable tension, resulting in effects on speed and shifting accuracy. Furthermore, with electronic shifting, a simple touch of a button is all that’s needed, unlike mechanical shifting, which can sometimes require physical effort and a certain degree of commitment to complete the gear transition.

Effortless shifting: Extraordinary strength or excessive experience is not required to handle the levers and switch between gears with a mechanical system; however, with electronic shifts, the required effort is virtually nonexistent. It’s important to note that cyclists rarely complain of finger fatigue from using electronic shifting. Nevertheless, in certain situations, such as when cyclists experience a loss of sensitivity or strength in their hands or fingers, electronic shifting can open up new possibilities and greatly enhance their riding experience.

Customization: Some electronic shifting systems offer the flexibility to customize settings, allowing cyclists to adjust the speed of shifts or configure buttons to their liking. It’s even possible to add extra buttons or shifters to change gears without using the levers. This enables cyclists to tailor the system to their personal preferences, optimizing their riding experience.

Improved performance in adverse conditions with mud and rain: Cyclocross has served as a crucial testing ground for electronic shifting. From the outset, this component has proven essential in such a demanding cycling discipline, as it has been able to deliver significantly superior performance compared to mechanical shifting, while also better withstanding exposure to water, mud, dust, and dirt.

Reduced maintenance: Electronic shifting requires significantly less maintenance compared to its mechanical counterpart, as it does not involve the wear and tear of cables that require periodic adjustments. This makes it more maintenance-efficient and requires fewer component replacements. Typically, it’s sufficient to monitor the battery’s status and make minor button adjustments as needed to keep it in excellent condition.

Compatibility with other electronic components: Many electronic groups can be synchronized with other bike components, such as cycle computers or GPS navigation systems. This allows for a more synergistic setup, as well as more accurate battery management, among other benefits. Additionally, this system also tracks operational data, allowing cyclists to monitor which gear ratios and shifts are used most frequently.

Increased adoption by major manufacturers: Leading players in the cycling market, such as Shimano, Sram, and Campagnolo, are increasingly incorporating electronic shifting into their models. While they continue to produce bikes with mechanical shifting, their market share is gradually decreasing. Furthermore, when it comes to models from several years ago, the availability of spare parts is becoming more complex. It appears that the cycling industry is slowly pushing toward the adoption of electronic shifts, although it is still possible to choose between the two options.


Price: Electronic groups usually come at a higher cost compared to mechanical ones. Currently, purchasing individual components independently is uncommon, but in the event someone wishes to venture into this choice, the price would be considerably higher. Likewise, spare parts and components for electronic shifting are steadily increasing in cost compared to their mechanical counterparts.

Battery life: Electronic groups are powered by one or more batteries to operate derailleurs and other components. Consequently, it’s vital to keep the battery constantly charged to avoid the risk of running out of power at the most inconvenient times. For example, during bike transport or maintenance, there’s a risk of accidentally touching a button, activating the shifting and depleting the battery without realizing it. Most electronic systems have light indicators or LEDs that provide real-time battery status, allowing for monitoring of the charge level. As demonstrated in the video below, Sram electronic shifts feature removable and interchangeable batteries on both the front and rear derailleurs, which is an extremely practical solution.

Reduced resistance to impacts and impacts: Electronic shifts are more vulnerable to damage from shocks, vibrations, or accidents. If the bike falls due to a simple slide or a more serious accident, the risk of damaging the electronic shifting is higher compared to mechanical models. Furthermore, in the event of such an occurrence, it is usually more complex and expensive to make immediate replacements or repairs to electronic shifting components than would be required with a mechanical model.

Reliability of components: Just like in mechanical shifts, electronic models can also encounter problems and failures. Issues related to batteries, faulty components, or software malfunctions may arise. If electronic shifting experiences a malfunction during a ride, the options for resolution are limited and mainly involve checking the status of the batteries, cables, and attempting to restore the system. In some situations, it may be impossible to find an immediate solution on the road to enable a smooth return home.

Increased overall weight: When comparing electronic shifting to mechanical shifts in the same price range, it tends to be heavier due to the presence of the battery and motor. This weight increase usually hovers around 300-400 grams, although some electronic shifting components may be lighter than their counterparts in mechanical systems.

Complicated Installation: This especially applies to Shimano Di2 and Campagnolo EPS groups, but to a lesser extent in the case of Sram eTap AXS. If you’re not a mechanical expert and don’t have all the necessary tools, it’s advisable to consult a specialized workshop for professional assembly and configuration.

Lack of Shift Feel: When you shift gears by pressing a button, you may miss the “feedback” sensation typical of mechanical systems. Electronic shifts are so quiet and fast that in some cases, it almost feels like you haven’t changed gears at all. This is why some cyclists still prefer mechanical groups, appreciating the tactile resistance and distinctive sound of gear changes.

Compatibility Issues with Shifter/Bike: There’s a significant likelihood that the electronic shifting system may be incompatible with a wide range of bikes and components, especially among older models. It is therefore essential to conduct a thorough check to ensure that your bike is compatible with the chosen electronic system.

Electronic Shift Lifecycle: Electronic shifts represent a relatively recent technology. It’s impossible to predict with certainty their longevity or when manufacturers might discontinue production of some of their components or cease software updates. For example, the first generation of the Shimano Di2 system was introduced in 2010; is it possible that it will continue to be supported until 2030?


In conclusion, electronic shifting offers a range of advantages and disadvantages to consider when evaluating the best option for your bike. Among the advantages are precision and reliability in shifting, ease of use, customizable settings, and reduced maintenance. Additionally, some systems allow for integration with other components and provide valuable performance data.

However, there are also disadvantages to take into account. Electronic shifts tend to be more expensive than mechanical ones, may require greater attention to battery charge, and are more susceptible to damage in case of falls or accidents. Furthermore, their compatibility with some older bikes could be problematic, and the question of the longevity of electronic systems remains open.

Ultimately, the choice between electronic and mechanical shifting depends on individual preferences, budget, and specific needs. Both systems offer unique advantages, so it’s important to carefully assess your priorities and the type of cycling you intend to pursue before making a decision. With the advancement of technology, electronic shifting is likely to continue evolving and improving, offering more options to cyclists.

The introduction of electronic shifting was initially seen as a high-end option, often considered expensive and primarily intended for professional cyclists and enthusiasts. However, over time, manufacturers have lowered the prices of this technology, making it available for mid-range and budget bicycles as well. If you are seriously considering purchasing a bike with electronic shifting, it is advisable to conduct thorough research and read reviews on the options that pique your interest. This will allow you to gain a comprehensive understanding of the advantages and disadvantages of the various brands and models available on the market.

Always remember to enjoy cycling safely and responsibly, respecting road rules, wearing appropriate protective gear, and maintaining awareness of your skill level and physical limits.

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