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The definitive guide of Shimano Change Groups for Road

The definitive guide of Shimano Change Groups for Road

Shimano is the king of the component market for road cycling. The Japanese manufacturer of change groups stands out for quality, reliability and ease of use. Its offer of transmission groups for route bicycles is very wide and covers all ranges and price ranges. In addition, they have recently unfolded their range of electronic change, offering a somewhat cheaper alternative to make the benefits of electronic change to more cyclists. If you are thinking about Buy a road bike And you don't know what range it moves or for what cyclist level each transmission group is made, here we explain the characteristics, advantages and disadvantages of Shimano changes. A guide that will facilitate your future purchase. [IRP Posts = "4273" Name = "Shimano change group guide for mountain bike"]

Shimano Gama Gama Gama

Shimano has several access and initiation ranks on route, with transmissions that include cassettes of 8, 9 and 10 speeds.

Shimano Claris

Shimano Claris diversion The Claris range is Shimano's simplest and most economical transmission group for road bicycles. It is intended for beginner cyclists who have a limited budget. In addition to the transmission components, it also includes brakes, both handles and bridges for shoes. It offers three different types of connecting rods, with triple dish (50-39-30d) and double dish (50-34 or 46-34d) and 8 speed cassette, with 11-28d range of developments, 11-30d, 11-32D , 12-25d, 13-26d and 11-34d. Cyclist type: beginner. Development options: 2x8, 3x8

Shimano Sora

The Shimano Sora group is another group for low -end bicycle assemblies. In this case it is somewhat more sophisticated than the Claris and is intended for more sporty use, especially for the introduction of the 9 -speed cassette. It includes the entire transmission group, in addition to brakes and bushings for the wheels. Its construction is more robust and resistant than Shimano Claris. In addition, the current series, the R3000, inherits and adapts some of the designs and technologies of higher groups, such as the design of anti anti -chain departures HG. The 9-speed cassette is offered in different ranges: 11-25d, 11-30d, 11-32d, 12-25d, 13-25d and 14-25d. Cyclist type: beginner. Development options: 2x9, 3x9. Rival in the market: SRAM APEX.

Shimano Tiagra

Bielas Shimano Tiagra There is discussion about whether the Tiagra change group is low or medium range. But Shimano has always bounded it to an initiation cycling, that is, for low range. The Tiagra Group inherits in its design and technology of action several technologies of medium and high-end groups such as Dura-Ace or Ultegra. This is because when Shimano launches new versions of his higher groups, the technology used in the previous ones passes to the lower ranges. The Shimano Tiagra change is a 10 -speed cassette transmission and also incorporates disc brake, bushings and wheels into its series. Cyclist type: Beginner, Cyclist. Development options: 2x10, 3x10.


Shimano mid -range gear groups offer excellent performance almost in any situation. Although there is a price step between group 105 and the Ultegra group, the truth is that the medium cyclist will barely notice the difference between them.

Shimano 105

Shimano 105 diversion The passage to the mid -range of Shimano begins with 105, the group of cyclists par excellence. Also of cyclists who usually go to train and who do not want to spend much on a high -end bicycle or components. The Shimano 105 change is the group with the best quality/price ratio of the brand, reliable in change and inherits a good part of the design of connecting rods and ultegra dishes, the group immediately higher than it. The connecting rods of 105 (with 53-39d, 52-36d and 50-34d) But, at the same time, it has a special forged that increases its rigidity and thus improves the energy transfer of the pedals to the bike. For its part, 105 is the most economical mid-range group of Shiman 11-30d, 11-32d and 12-25d) and the wide range 11-34d CS-HG700-11. Cyclist type: Cyclist, intermediate level. Development options: 2x11. Rivals on the market: SRAM Rival, Campagnolo Athena and Campagnolo Potenza.

Shimano Ultegra

Cassette Shimano Ultegra The Shimano Ultegra group is one of the best designed transmission groups of the Japanese brand and makes bridge between the mid-range and the exclusivity of Dura-Ace. It is loaded with the best technologies: it is light, soft in the change of marches, reliable and guarantees a precise change in any circumstance. It is a group for high -level cycatters and fans who occasionally compete or train seriously. The star development ratio of the Ultegra range is 2x11, although the combinations of plate and pine nuts are very wide: 53-39, 52-36, 50-34, and 46-36 for the plates and 11-25, 11- 28, 11-30, 11-32, 12-25, 14-38 and 11-34 for 11V cassettes. In addition to the transmission, the Ultegra range also includes a whole series of components for a complete bicycle assembly with the same group: disc brakes and shoe, bushings, wheels, interns or pedal axes. Cyclist type: High level cycling, corridor. Development options: 2x11. Rivals on the market: SRAM FORCE, CAMPAGNOLO CHORUS AND CAMPAGNOLO RECORD.

High -end shimano groups

Shimano reserves its electronic change system for high -end groups, for professional and semi -professional cyclists or fans seeking more demanding performance in their outputs and routes.


Shimano Ultegra change handles The new R8000 generation of the Ultegra Group includes a renewed DI2 electronic change version, whose technology is directly inherited from the Dura-Ace2, cusp of the offer of Shimano transmission groups. The Shimano Ultegra Di2 group combines that electronic change technology with the components of the ultegra, with dishes, connecting rods and cassettes somewhat heavier than the Dura-Ace. However, the reliability and customization capacity of electronic change is practically the same as the top of Shimano range. It is thanks to the button with programmable button. In addition to the change, with it you can also control a system of lights, link it to a GPS to handle it better or program the exchange rate (fast or synchronized) that most adapts to the cyclist's driving style. All this can be configured from the application Shimano e-Tube, available for both PCs and mobile devices (tablets and smartphones). Shimano's electronic change brings numerous advantages to the cyclist. First, both buttons and deviators (striker and rear) are much less disagree, thanks to their connection by electronic cable, which is able to operate the small engines of the deviators to change the dish or pinion. The entire system is fed by a battery that can be installed inside the box, usually inside the armchair tube. It is also possible to customize the mode of change: of one manual, with the same sensations of change as a traditional one than with greater action precision, to one synchronized or Syncro-Shift. The latter acts as an automatic change; If you go up the front diversion will automatically change to the small dish and if you lower it will change to the big one, without pressing the handle of this front deviator. On the other hand, there is a Semi Syncro-Shift mode. Only by changing the dish the system automatically operates the rear diverter to raise or lower three pine nuts and adapt the relationship instantly. Then, the cyclist himself can upload or lower a pinion manually to completely adjust the development. You can see how the different modes are adjusted in this practical video of Macario Llorente: https://youtu.be/e0M8HAtaosI But all novel technology is rigged from some inconveniences. In the case of the Ultegra Di2 change there is weight gain regarding a mechanical change. In addition, in case of system fault (rare) repairs are more expensive. Cyclist type: High level cycling, corridor. Development options: 2x11. Rivals on the market: SRAM FORCE ETAP AX.

Shimano Dura-Ace

Shimano Dura-Ace It is Shimano's high -end transmission group, which also incorporates components such as disc brakes and a wide range of carbon wheels. The Dura-Mechanical Group is synonymous with precision and lightness of its components. It is the group that uses a good part of the professional cyclists, although the Dura-Ace2 electronic has ended up replacing it in the platoon, Integrates all the most advanced shimano change technologies: dual control ergonomics for the handles, design Wide Link In deviators to add more rigidity, chain HG-X11 which provides softer changes, hollow and rigid aluminum rods of one -piece hollowtech II, etc. In addition, one of those 2x11 rods is available with potentiometer incorporated in the rod arm, with Bluetooh Le and ant+connectivity. The available plate developments are 53-39D, 52-36D, 50-34D for this model, while the connecting rods without potentiometer add the 55-42D and 54-42D, typical of the competition. The Dura-Ace cassette is 11 speeds, with carbon spider and 5 pinions made in titanium. It is offered in ranges 11-25d, 11-28d, 11-30d, 12-25d and 12-28d. Cyclist type: professional. Development options: 2x11 Rivals on the market: CAMPAGNOLO SUPER RECORD, SRAM RED.


It is the top range group of all Shimano road transmissions. Based all the electronic change technology DI2 (connectivity, personalization of the change, etc.) with the lightness, rigidity and precision of buttons, plates, cassette and connecting rods. The result is a virtually perfect change group, very precise and that only adds a few extra grams to the total bike weight due to the greater battery, swelling and internal motors of the deviators. In addition, the latest version incorporates a compact remote change command, the SW-R9150, which can be easily installed at any point in the handlebar to have a much more comfortable button to use. You can also customize your drive through the Shimano E-Tube app. Cyclist type: professional. Development options: 2x11. Rivals on the market: SRAM ETAP AX, CAMPAGNOLO SUPER RECORD EPS.
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