Choosing the correct transmission is one of the main decisions when
Buy a serious bike. The monopath transmission (1x) is already a MTB standard. What happens then in the case of serious bicycles? In this issue, as in so many others linked to cycling, there is no absolute truth. Everything depends ... it depends on the land where you want to make your routes, it depends on your budget, it depends on your pedaling form, it depends on your sensations ...
The good thing is that all brands have a wide offer to mount your serious bike with the most appropriate transmission. Shimano and SRAM have specific grave groups that offer the double 1x and 2x option. This is not the case with Campagnolo, where his specific group (Ekar) rides only 1x.
The design of a plate conceived for 1x transmissions is very different from that used in double -plate transmissions (2x). If you look good, your teeth are deeper and combine in two different widths. They alternate in the circumference of the plate to gesture much better with the narrow and wide links of the chain. A superfect system that prevents the chain from jumping.
Therefore, and if you have ever asked yourself, eliminate the diverter from a double -plate transmission would not meet as a specific monoplater transmission does; They are simply not dishes prepared for it and the chain would continually jump.
We must also refer to the cassette, which in this type of transmissions has a mechanism to prevent the chain from
dance in excess. All this contributes to the mechanism being robust.
As for the double dish, little can be said of a mechanism that has been among us 70 years. Obviously, it is more complex, since it has a deviation, a specific change handle, the corresponding wiring, etc ...
How the double dish influences a serious bicycle
Possibly, the greatest advantage is determined by the amount of multiplications, which allows a varied speed range; In principle, double. But that in theory, since it is not exactly like that. There is a certain overlap between marches. A priori, a double -course transmission with a 11 crowns cassette would result in 22 different speeds. However, eliminating duplicities, this figure would stay in 14, not so far from the 11 that would provide the same monoplat transmission. It may seem otherwise, but it is reality.
It is interesting to underline that the jump when changing march is much softer than in a monopath transmission. This is something that is appreciated when your serious routes run through favorable terrain, both on track and on road sections. They are circumstances in which you will look for a constant cadence, with sensations that remind those of a road bike.
Nor should you worry too much about slope or when circulating on paths or more technical land, provided you choose a small dish focused on this type of efforts. Let's put, for example, that you opt for a double 48-31 dish. With a generous cassette choice you can upload almost anything.
That said, are there reasons to choose a monoplat transmission? Isn't something contradictory?
How to sign the single -sequate on a serious bicycle
In times when the least is and where the design counts so much, the monopath is aesthetically more attractive. We must not despise this issue, although perhaps it is not the most critical.
Let's go with issues related to performance.
First, transmission 1x contributes to the lightness of the bicycle, since the diversion and one of the dishes disappears, among other components. It will not be something decisive, just 200 or 250 grams less on the scale, but everything counts.
Another important issue is that eliminating the front diversor allows you to mount wider covers. This makes a difference, even, with respect to 2x transmissions specifically focused on grass. This is the case, to give an example, of the Shimano Grx group. Its double dish is slightly displaced out to be able to mount wide wheels, but loses the game against 1x transmissions, limiting the maximum width to 42 mm.
Some brands have tried to combat this issue by modifying the geometry of some serious models with longer pods, which allow to mount oversized tires even with double dish. But it is a complex issue, since the behavior of the bike changes. When the bike is longer in the back, more stable and less agile. Keep that in mind.
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Ekar Group, the specific Campagnolo for Gravel. Image: Campagnolo.[/caption]
Another advantages of monopathing transmission is that they only require a change handle, in the right part of the handlebar. When the left side is free, there is space to include advances of mountain bikes, such as the lever to control telescopic typical, in cases of bikes of serious bikes with this device.
Let's talk about multiplications now. How does it work if you eliminate half of the front transmission?
First you will need a cassette with a range of speeds as wide as possible. Especially, above, not to have problems facing any
Wall that is third. Surely you will not want to drag your uphill bike due to lack of development.
Suppose you have a 11-42 cassette combined with a 42 teeth dish. In this case, you can make sure you pedal up to speeds around 60 km/h. Therefore, you should not worry on that side.
As for the jump between marches, it can be somewhat uncomfortable punctually; Above all, on the road and when rolling in a group. Outside the asphalt, speeds are usually lower and land accidents are greater. Therefore, the jump between marches not only ceases to suppose a problem, but can result in an advantage, since we avoid wasting time (and rhythm) by changing from pinion in pinion until giving the most comfortable combination.
Another relevant issue in 1x transmissions is that the chain suffers more. From the same point, he is forced to cross more than the account to engage in all the pine nuts. Narder and more flexible models have been designed to alleviate this issue, but wear is faster than in 2x transmissions.
What transmission to choose for grave?
Said all this, what is the ideal choice for your serious bike? As we have pointed at the beginning, it depends. The perfect choice is the one that best suits your needs, your conditions and your routes.
If less than 50% of your tours run along clues or roads, then a 2x transmission can be more appropriate. It offers a wide range that will allow you, theoretically, to go quickly on favorable terrain and face pronounced earrings with guarantees.
If, on the other hand, you prefer a more serious bike
Pure With the ability to mount over -minded tires, if you love simplicity, if you seek to reduce some weight and adopt a somewhat more robust system, then the caution can be your perfect choice.
Therefore, and if you have ever asked yourself, eliminate the diverter from a double -plate transmission would not meet as a specific monoplater transmission does; They are simply not dishes prepared for it and the chain would continually jump.
We must also refer to the cassette, which in this type of transmissions has a mechanism to prevent the chain from dance in excess. All this contributes to the mechanism being robust.
As for the double dish, little can be said of a mechanism that has been among us 70 years. Obviously, it is more complex, since it has a deviation, a specific change handle, the corresponding wiring, etc ...
It is interesting to underline that the jump when changing march is much softer than in a monopath transmission. This is something that is appreciated when your serious routes run through favorable terrain, both on track and on road sections. They are circumstances in which you will look for a constant cadence, with sensations that remind those of a road bike.
Nor should you worry too much about slope or when circulating on paths or more technical land, provided you choose a small dish focused on this type of efforts. Let's put, for example, that you opt for a double 48-31 dish. With a generous cassette choice you can upload almost anything.
That said, are there reasons to choose a monoplat transmission? Isn't something contradictory?
Ekar Group, the specific Campagnolo for Gravel. Image: Campagnolo.[/caption]
Another advantages of monopathing transmission is that they only require a change handle, in the right part of the handlebar. When the left side is free, there is space to include advances of mountain bikes, such as the lever to control telescopic typical, in cases of bikes of serious bikes with this device.
Let's talk about multiplications now. How does it work if you eliminate half of the front transmission?
First you will need a cassette with a range of speeds as wide as possible. Especially, above, not to have problems facing any Wall that is third. Surely you will not want to drag your uphill bike due to lack of development.
Suppose you have a 11-42 cassette combined with a 42 teeth dish. In this case, you can make sure you pedal up to speeds around 60 km/h. Therefore, you should not worry on that side.
As for the jump between marches, it can be somewhat uncomfortable punctually; Above all, on the road and when rolling in a group. Outside the asphalt, speeds are usually lower and land accidents are greater. Therefore, the jump between marches not only ceases to suppose a problem, but can result in an advantage, since we avoid wasting time (and rhythm) by changing from pinion in pinion until giving the most comfortable combination.
Another relevant issue in 1x transmissions is that the chain suffers more. From the same point, he is forced to cross more than the account to engage in all the pine nuts. Narder and more flexible models have been designed to alleviate this issue, but wear is faster than in 2x transmissions.
