Shake off that uncertainty and follow the guide below for a better understanding of the distinguishing factors that make each of them unique. Thanks to the way certain parts have been categorized over the years—particularly in the context of bicycles—sprockets often get confused for gears. In actuality, the mechanical wheels on your bike aren't gears at all; they're sprockets.
The easiest way to differentiate between the two is to look at how they function. Gears are wheels with interlocking teeth around their perimeter. When connected, one spinning gear causes another to spin in the opposite direction, and combining different sizes channels rotational speed from gear to gear.
Upon closer inspection, sprockets aren't designed to interlock with one another. Instead, they tend to interlock with a separate flexible motion transfer medium like roller chain.
In the case of bicycles, for instance, sprockets are designed to interlock with a chain. A cog wheel is a wheel with a series of cogs on in. Sign up to join this community. The best answers are voted up and rise to the top. Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams? Learn more. What is the difference between "cog" and "gear"? Ask Question.
Asked 1 year, 9 months ago. Active 13 days ago. Viewed 9k times. I have in mind two possibilities: "cog" and "gear" are true synonyms, they are interchangeable; a "gear" is a kind of a "cog"; with other words, all "gears" are "cogs", but not all "cogs" are "gears". Improve this question. Both words have several different meanings, some overlapping, some not. But probably the bit that interests you is that a cog usually means a single "tooth" on a gear wheel , whereas the noun gear usually refers to multiple interlocking cogged "drive" wheels, coupled in an arrangement designed to change the rotational speed between input and output.
This was asked a few days ago. Possible duplicate. FumbleFingersReinstateMonica: I feel that you have a point, but your definition of "cog" far beyond my abilities to imagine things : Maybe use different words? MichaelHarvey: possible, but I was not able to find it. A cog is a tooth is a sprocket - one of the "sticky-out bits" on the outside edge of a gear wheel that interlocks with a corresponding "notch" hollow on another gear wheel. Or more abstractly, as in You start the car moving by using first gear.
Add a comment. This is expressed as 4. This is the gear I would use on the flat. It is going to take quite a lot of effort to get it moving, but when I do I will move quickly. This would be the opposite end, the small ring on the front and the biggest on the back. The reason for this is that they are the closest together, meaning you get a really low ratio. On the bike I ride this is 34 teeth at the front and 32 at the back — so really close.
This would be the gear I am using on the very toughest of climbs allowing mean to spin the wheels quickly to get my cadence high. A compact crankset typically has a 50 tooth 50T big ring and a 34 tooth 34T little-ring.
When choosing cassettes, you can choose a cassette that has a narrow range of ratios but closely spaced between each cog, or you could choose a cassette that offers a wide range of ratios but at the cost of bigger jumps between cogs.
Choosing a bike that has more speeds reduces the tradeoff some, and gives you more versatility. If you live in an area that has more varied terrain, a wider-ranged cassette may be the better choice to help you get up those hills. The key learning from all this information is to make a conscious choice when you purchase a bike as to the gear range that you want.
If you are climbing, then the natural choice is going to be a compact crankset, or in extreme cases a triple, but think about the rear cassette. My first bike had an , but I really like keeping a high cadence on the hills, so on my new bike I have opted for This means I still have a nice fast high gear, but the lowest gear is significantly easier to pedal.
If you are a keen time trial rider then you may want to opt for a standard crankset, as it will give you a higher top gear.
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