This produces less wear on the chainrings, chain and front derailleur. There is also less risk of dropping your chain. An added bonus is that frictional losses are minimized in the big ring because the chain makes a wider radius bend than in the small ring.
Compacts are more versatile due to more chainring options. The smallest chainring compatible with standard cranksets is a 38, while compacts can go as low as At the other end of the spectrum, compact chainrings are commonly available in 53 and can be as monstrous as 56 teeth!
So you can effectively turn your compact into a standard if need be. Chainrings can be relatively inexpensive and swapping them only takes a few minutes. It can therefore be practical to have a selection of rings to choose from based on course conditions. At least one study found that increasing cycling cadence benefited subsequent running performance. But the research is conflicting with other studies finding that a lower cadence benefits running or no relationship between cadence and running performance.
In summary, a higher cadence may improve your off-the-bike running and you should experiment to find out. Compacts are lighter due to the smaller spider, smaller chainrings, shorter chain and potentially smaller cassette. All of these factors could add up to a modest weight savings of grams or more. Compacts may facilitate shorter cranks. There has been a trend towards shorter crank arms among triathletes and time trialists, primarily to allow a lower and more aerodynamic position by opening the hip angle.
This, in turn, can lead to improved off-the-bike running. While crank length remains controversial, some studies have shown that its effects on power output or metabolic efficiency are small or insignificant. Assuming this is the case, cyclists are free to choose crank length based on comfort and aerodynamics.
With shorter cranks, some cyclists will naturally choose a higher cadence. However, the opposite may be true for cyclists who do not increase their cadence after switching to shorter cranks. Drivetrain efficiency is also helped by a good chainline. The middle four sprockets on a speed cassette create a good chainline with either of the front chainrings. Standard cranksets make sense for strong and muscular riders, people who prefer flat terrain, or racing cyclists who might feel undergeared with a compact crankset.
Whether racers are literally undergeared or not with a compact crankset is immaterial in the end. They may just prefer to keep their cadence in check during hard efforts or among a fast group. Many off-the-peg bikes these days come with a compact crankset by default, with cranks that are sized in proportion to the frame. Does a compact crankset make you slower? Racers may have a genuine need for a standard crankset, especially if they race flat crits, but many do race on compact cranksets. Some feel more in control of a bike and the pedal stroke if their legs are not spinning furiously.
A flipside for stronger riders is that a compact crankset allows a tighter gear range on the cassette. For instance, they could install an t cassette, which is almost equal to an t on a standard crankset. This makes for smoother gear changes, just as a narrower difference between chainring sizes does.
Riders who once would have relied on the compact option are now finding that a mid-compact chainset and a wider-ratio cassette enables better performance. Most companies are in agreement that compact is still relevant. For a wide spectrum of riders, mountainous environments and long-distance riding, it still makes sense. We only spec cyclocross, mid-compact or a 1x builds. The Frenchman expressed doubts that not every team is sticking to the same rules.
So on the slow side, the difference between a compact and standard using an cassette is 0. For an cassette we have a difference of 0. To put this into perspective, that's a You can see why compact is appealing to those who spend a lot of time climbing hills or those that rarely spend time over mph. Compact Vs. Standard Cranksets Compact Vs.
Standard Cranksets. Learn Center:. Compact or standard? The basics. By the numbers: comparing compact and standard. Standard 53x Compact 50x Cadence rpm.
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