What does cassette 12 27 mean




















Shop mountain bike cassettes at Wiggle. In some cases, it is possible to run a cassette from a different brand than the rest of your drivetrain.

SRAM and Shimano cassettes, on either road or mountain bike, are interchangeable with each other as the spacing is the same between the sprockets. Once you've found the perfect cassette for your bike, you'll be glad to know the process for fitting it is relatively simple.

You'll need a chain whip, a Shimano or Campagnolo specific removal tool remember Shimano and SRAM are cross-compatible , an adjustable spanner, and maybe some gloves. After you've removed your rear wheel, brace the cassette using the chain whip, attach the removal tool, and remove the lockring with the adjustable spanner. Slide off the old cassette and replace, then reattach the lockring using the chain whip and spanner. Shop Tools and Maintenance at Wiggle. This video from Pro-Lite shows just how easy it is.

Some riders choose to run a dedicated cassette - and chain - while using a turbo trainer. There are several reasons why. Firstly, if you're using a wheel-on trainer, you probably have a dedicated training tyre.

To avoid swapping tyres everytime you go for an indoor session, many riders also have a training wheel. And to save time swapping out the cassette, a dedicated training cassette also saves time with the spanners. If this is the set-up you go for, then it's not a great idea to use your hard-worn outdoor chain on the relatively unworn training cassette, or it'll start gnashing the teeth.

To keep things simple, many riders opt for a dedicated tyre, wheel, cassette, and chain just for the turbo trainer. And because you don't have to worry so much about weight, then cheaper models are available to you. Those with direct drive trainers will often require a spare cassette in general that's compatible with their trainer. Either way, you may want to use a cassette that best facilitates cadence training, as big climbing cassettes are not as necessary.

For that reason, tighter cassettes, such as or are generally favoured. Cassette buying guide. Posted in Cycle. PeteH PeteH 9, 5 5 gold badges 29 29 silver badges 52 52 bronze badges.

Ramy exactly the same principle for the cranks except at the front, a low number represents an easier gear — PeteH. But obviously you're not there yet. Given that, I would tend to pick the combination which gives a lot of flexibility, sacrificing smoothness if necessary. Bear in mind that if you get the choice really wrong and want to change unlikely , a new cassette is a lot cheaper than a new crankset. I'd also suggest some background reading on terms like gear inches, gear ratios to get a fuller understanding of what you're choosing.

As usual, Sheldon is an excellent resource here. Thinking about the number of "I need a higher gear" questions we see here that turn out the correct answer is "you need to spin faster" - I would suggest no bigger than 50 on and no smaller than 12 on the back for the highest gear- along the lines of youth gearing.

Show 5 more comments. It depends on the terrain an on your fitness. Your LBS could fit an cassette as well. Because there are more than the two you indicated to chose from. And cassettes are easy to swap. I use a cassette which could be an intermediate option between the two originally listed. OraNob OraNob 2, 6 6 silver badges 11 11 bronze badges. Aside-but-still-an-important-point-too-long-for-a-comment: The number of "speeds" or count of cogs is also an important number, which hasn't been stated in your initial question.

Sign up or log in Sign up using Google. Sign up using Facebook. Sign up using Email and Password. Post as a guest Name. Email Required, but never shown. Featured on Meta. Now live: A fully responsive profile. Linked 8. Related 6. Hot Network Questions. Question feed. Bicycles Stack Exchange works best with JavaScript enabled.

Road bike cassettes can be found in a massive range of sizes, but they have a rear cassette with very little difference between the sprockets. Their gear range is usually between 21 to 32 teeth for the low gear and 11 to 13 for the high gear, usually with a single tooth increment.

Ideal for recreational use or short rides on flat roads, most manufacturers sell bikes with cassette fitted, which fares pretty well with a standard or compact chainset. Brian is a Co-founder at My Bike Shop, a 2-time Ironman finisher, father of two incredible mini triathletes, and proud to be "chalk" ha, ha full of useful and useless bike knowledge!

He's a former middle school English teacher of 12 years, who chose to jump off a cliff and start the bike revolution that is mybikeshop! Hit enter to search or ESC to close. So is there a sweet spot that defines your ideal cassette? Understanding Your Cassette Types of cassettes vary, mainly depending on the number of cogs and teeth on them. The Terrain You Frequently Ride For obvious reasons, this is the biggest factor to decide the right cassette.

Your Fitness Level The second biggest factor is your fitness. Your Crankset When choosing a cassette, most new riders fail to take their crankset into consideration. Road Bike Cassettes Road bike cassettes can be found in a massive range of sizes, but they have a rear cassette with very little difference between the sprockets.



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