Shimano 10 Speed Ultegra Cassette Manual
This article is your guide to Shimano and Shimano-compatible 10-speed cassettes (sprocket clusters) - replacing worn sprockets, making subsitutions, and building custom combinations. Gives more general information about cassettes, and on how to upgrade from an older cassette. In case you're not sure whether your bike has a cassette Freehub or a thread-on freewheel, We do not recommend 10-speed cassettes, if you can avoid them. The increasing number of sprockets from year to year is an example of spec hype. They represent an attempt to make last year's bicycle look obsolete so you'll buy a new one.
A listing of 10-speed cassettes compatible with Shimano Freehub bodies, from several brands. This article is your guide to Shimano and Shimano-compatible 10-speed cassettes (sprocket clusters). Ultegra CS-6700 [2012 update].
Please keep these pointers in mind:. No matter how many sprockets your bicycle has, you can use only one at a time!. These's no need for that many sprockets at the rear wheel. A wide gear range, with a small steps between gear ratios, is easily achieved with a 7- or 8-sprocket cluster at the rear wheel and a wide-step double or triple-chainwheel crankset.
The closely-spaced sprockets of a 10-speed system make shifting more finicky. Minor misadjustments which would not be a problem with a 7- or 8-speed system result in malfunction. 10-speed sprockets are thin, and so is the chain. They wear out faster, are harder to service and more easily damaged.
The side plates of chain made for a 10-sprocket cassette are barely thicker than the lid of a tin can. If one of these chains jams, it may easily bend or break.
This is an especially serious issue for a bicycle tourist or randonneur. Still, there are a couple of reasons it can make sense to have a 10- or even 11-speed system:.
You may find a bicycle particularly attractive, but it is available only with a 10-speed system. That is the case with most high-end bicycles as of 2016.
(Fortunately, 8- and 9-speed cassettes fit most of the same cassette bodies, allowing replacement when the 10-speed sprockets and chain wear out.). You may be on a racing team which needs to have all the bicycles equipped the same, for easy parts interchangeability and to match pedaling cadences. If you're a pro racer, your team will buy the bicycles and keep them in repair. Cassettes listed below will fit most Shimano and Shimano-compatible Freehub bodies, with the following exceptions:. with tall splines work only with 10-speed sprockets. The Shimano cassettes listed here will fit, but don't try to use a cassette with fewer sprockets. Some other brands of 10 speed cassettes, in particular, SRAM, don't work with the taller splines.
A shorter 7-speed body would require you to or or 9 sprockets from a 10-speed cassette. A simpler alternative is to with an 8/9/10-speed body. 11-tooth sprockets require a ' freehub body and lockring. TheShimano body has four special sprockets, with 9, 10, 11 and 13 teeth. The other, larger sprockets are standard. Colored backgrounds in the cells of the tables below identify assemblies of two or more sprockets on a to save weight. The lighter cassettes are more expensive, sometimes much more, so you really have to decide for yourself how important it is to save a few ounces.
Sprockets on a spider cannot be separated from one another, so you will have to replace all of them even if you only wear out one of them! They can be replaced by flat steel sprockets with spacers sandwiched between them, and vice versa. Assemblies of the same sprocket sizes shown in the same background color are compatible with one another, though they may differ in materials and finish. Some Shimano flat steel sprockets and spacers are in bolted or riveted assemblies, indicated by tooth counts in italics in the table. The bolts or rivets serve only to keep sprockets and spacers in order when the cassette is not installed on the freehub. To replace sprockets or build up custom combinations. The ramps and shaped teeth of Shimano sprockets, and their imitations, are designed to improve shifting in the stock progressions, but it is possible to mix and match sprockets with some small penalty in smoothness of shifting.
Are available individually in all sizes, useful in building up a custom progression. The Shimano parts lists linked below will help you identify models and order replacement parts. SRAM, IRD, Miche, BBB and SunRace also offer 10-speed Shimano-compatible cassettes - see additional sections that follow the Shimano section. Harris Cyclery sells some but not all Shimano 10-speed cassettes. The table below, though, is a complete as it can be made as of April 2016, in order to indicate compatibility and interchangeability.
The table, unlike others, shows both 'road' and 'mountain' cassettes. Shimano parts lists. Older parts lists, current as of 2012 The parts lists below are now found in the Internet Archive. IRD has many combinations that are different from Shimano's. Some combinations are rather nice, and others have some uneven steps.
ES series cassettes have the four largest sprockets on aluminum spiders, two sprockets each. The spiders are indicated by background colors in the table below. These 10 speed cassettes fit all Shimano Freehub bodies including aluminum ones with tall splines. Tthe inner two-sprocket spider assemblies must be recessed on the back side so the innermost sprocket overhangs the flange of the Freehub body. I haven't checked them so I don't know for sure whether all are recessed.
If so, all with the same tooth counts will work in either the innermost or middle positions Rows with gray background indicate cassettes no longer listed as of 2016. As of this writing, Harris Cyclery does not sell IRD cassettes, but they are included here for the sake of completeness - John Allen. Unlike the other major cassette manufacturers, Miche specializes in. Miche even offers a sprocket board, as in days of old.Sprockets for 8- 9-10-and 11-speed cassettes are the same (narrow enough to fit a 10- or 11-speed chain), but the spacers are different.
The smallest sprocket for a 10-speed system on a Shimano body has 11 teeth; all sizes up to 30 teeth, as well as 32 teeth are offered. Miche 10-speed Supertype cassettes These have (mostly) aluminum sprockets and should be used with a Shimano Dura-Ace cassette body. Supertype cassettes are also made for Campagnolo cassette bodies. (English on page 2). Note that an 11-tooth outer sprocket may be used only in combination with a 12-tooth second sprocket. All other sizes up to 30 teeth are available. Miche 10-speed Primato cassettes These have steel sprockets and will fit any Shimano-compatible cassette body other than Dura-Ace with tall splines.
Primato cassettes are also made for Campagnolo and Miche's own proprietary cassette bodies. Note that an 11-tooth outer sprocket may be used only in combination with a 12-tooth second sprocket. All other sizes up to 29 teeth are available. SRAM 10-speed Combinations. Harris Cyclery sells a few SRAM cassettes, where they fill in gaps in Shimano's offerings. Note: Some SRAM cassettes do not work with Shimano aluminum Freehub bodies that have tall splines.
XG-1099 ('XX') cassettes have 8 sprockets (all but the innermost and outermost) CNC machined from a single piece of steel. XCG-1090 series cassettes use 'PowerDome' construction, with several sprockets machined from a single piece of steel. These are gaps in the oferings listed on the SRAM site and so there may be other cassettes in this series. OG-1090 series cassettes use 'PowerDome' construction, with several sprockets machined from a single piece of steel; also reported to use some titanium sprockets and a carbon-fiber spider. These no longer appear in the 2016 catalog. At least some OpenGlide (OG) series cassettes skip teeth on some or all sprockets.
The skip-tooth cassettes are reputed to shift more smoothly, but to be noisy, probably due to roughness of chain disengagement from sprockets under power when the chain is at an angle. XG-1080 'PinDome' cassettes have 8 sprockets (all but the innermost and outermost) riveted together near the outside, with numerous separate, short rivets between each two sprockets, for greater rigidity with lightened sprockets.
Unlike with traditional Shimano three-rivet assemblies, it is not practical to remove the rivets to use the sprockets separately. OG-1070, PG-1070 and PG-1050 series cassettes use steel sprockets, and the three largest are on an aluminum spider. The finish differs among these lines of cassettes. SRAM uses some of the same series identifiers for both 'road' and 'MTB' cassettes. So, if you see a cassette in the list below but don't find it in SRAM's Road listing, look in the MTB listing. It is probable that all of the 3-sprocket spider assemblies which start with 21-tooth sprockets are interchangeable without compromising smoothness of shifting, as they all follow a 19T sprocket. Grayed-out rows in the table below indicate cassettes which were listed in the 2011 catalog but are no longer listed in the 2016 catalog.
Asterisked listings are for odd sequences which may reflect mistakes in the catalog. (see pages 36 ff.) (see pages 70-71). BBB has many combinations that are different from Shimano's. Some combinations are rather nice. No spiders are used - rather, separate cogs with aluminum spacers. As of this writing, Harris Cyclery does not sell BBB BCS-10S cassettes, but they are included here for the sake of completeness.
Shimano Ultegra 10 Speed Shifter
Code 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 30 32 34 36 BCS-10S 12 13 14 15 16 17 18 19 21 BCS-10S 12 13 14 15 16 17 19 21 23 BCS-10S 12 14 15 16 17 19 21 23 25 BCS-10S 13 15 17 19 21 24 27 30 34 BCS-10S 13 15 17 19 22 25 28 32 36 BCS-10S 12 13 14 15 16 17 19 21 23 25 BCS-10S 12 13 14 15 17 19 21 23 25 27 BCS-10S 12 13 14 15 17 19 21 23 25 28 BCS-10S 13 14 15 17 19 21 23 25 27 30 BCS-10S 14 15 16 17 18 19 20 21 23 25 BCS-10S 16 17 18 19 20 21 22 23 24 25 SunRace 10-speed combinations. As of this writing, Harris Cyclery does not sell SunRace cassettes. They are included here for the sake of completeness.
The different model numbers with the same tooth counts differ in materials:. CRSZ: One-piece aluminum CNC, ceramic coating. CRSX: Steel sprockets, largest two sprockets on a spider, aluminum spacers.
CSRS: Steel sprockets, largest two sprockets on a spider, polymer spacers. CSMS: Steel sprockets, two spiders with three sprockets each, steel spiders. CSMX: Steel sprockets except the largest is aluminum; two spiders with three sprockets each, aluminum spiders and spacer. SunRace does not give tooth counts in the 2016-2017 catalog but there are tooth counts in the earlier catalogs. SunRace listed a 12-32 10-speed cassette in the 2013-2014 catalog but did not give tooth counts for it. For SunRace cassettes with flat sprockets that skip the same sprocket sizes, it is fair to assume that the sprockets are interchangeable while maintaining smooth shifting. Grayed-out rows in the table below indicate cassettes not listed in the 2015 new-products listing or 2016-2017 catalog.
SunRace appears at this time to be specializing in MTB cassettes, at least among the 10-speeds. Shimano wants you to use one of its standard combinations, and offers a wide-enough choice to suit the needs of most cyclists, but you don't have to if you don't want to! It is not difficult to customize Shimano cassettes. If you substitute an un-approved cog, Uniglide or Hyperglide, SRAM, SunRace, IRD, BBB, Miche, or some other brand, it will still work, but the shift to/from that cog will probably not be as smooth as a Hyperglide shift normally is. Since people managed without Hyperglide for several decades, this shouldn't scare you off. In particular, if you substitute the top or bottom sprocket, you will only have one shift that isn't HG; shifts to or from the extreme sprockets tend to be less troublesome than intermediate shifts anyway. Shimano cassettes that don't use spiders have most of the sprockets held together by 3 small bolts or rivets.
These are not essential. Their function is convenience, in allowing the cassette to be installed slightly more easily. To make a custom cassette, you will often need to remove the screws or rivets. Just discard them, they are unnecessary in practice. Some cassettes use screws with a 4 mm hex head. These can be removed with an adjustable wrench.
Some cassettes use screws with a 2 mm Allen head. These are frequently mistaken for rivets. The easiest way to remove rivets is to grind off the heads where they protrude from the largest sprocket. I generally do this on a bench grinder. When you build your own cassette, generally, the smallest sprocket needs to be one with a built-in spacer, designed for the top-gear position. While you can't insert or remove a sprocket within a module, you can add sprockets on either side of these modules. Sprockets are available individually, too, from Miche.
What is a bicycle cassette? A is the cluster of sprockets located on the rear hub of your bike, slotting onto a freehub body and held firmly in place with a threaded cassette lockring. A typical cassette can have anything between five and 12 sprockets, although most modern bicycle drivetrains use either 9, 10 or 11. Why are cassettes important? Cassettes provide a range of gearing options for your chain to run on.
The range of gear ratios allows you to vary your pedalling cadence (revolutions per minute) to achieve optimum efficiency. Running your chain on one of the larger sprockets - those with more teeth - will provide an 'easier' gear. This reduces the torque required to turn the back wheel - perfect for climbing hills - but it also means you have to complete more pedal revolutions to cover the same amount of ground. Running your chain on a sprocket with a lower number of teeth maximises the torque, meaning less frequent but harder pedalling is required. This will allow you to keep adding power through your drivetrain without 'spinning out' (pedalling at an uncomfortably high number of revolutions) on a downhill section or sprint. A good range of gears on your cassette, therefore, allows you to select the optimal level of torque versus pedal speed to transmit your total effort to the wheels in the most effective way.
How do you choose the right cassette for your bike? The choice of a cassettes can appear overwhelming at first glance. There are different combinations of sprockets to suit different tastes, terrains, and disciplines; for example, there is a significant difference cassettes for triathlon bikes compared to a mountain bikes. The main thing to consider is the spread of gears on the cassette. The smaller the difference between the highest and lowest number of teeth, the smaller the jump between gears; facilitating a smoother gear change. However, having closer-geared sprockets will normally decrease the size of the largest sprocket on the cassette, leaving you with a gear ratio that may be less suited to climbing and tough terrain. Mountain bike cassettes have a larger range of sprocket sizes due to the wide variety of gradients encountered on an off-road trail.
Riding a flat forest track and then hitting a steep technical climb requires a major jump in gears. To accommodate this, the sprocket sizes on mountain bike cassettes require bigger gaps, which means sacrificing some of the smooth, tight shifting enjoyed by road versions. The creation of 10, 11, and now even 12 speed cassettes was a significant development for mountain biking. The larger number of sprockets means the biggest gear can have a huge number of teeth - providing easier gears for impossible climbs - while reducing the scale of the jump between each gear. This evolution allowed mountain bikers to do away with their triple chainsets, including the small get-out-of-jail chainring, often derided as 'the granny ring'. Instead, mountain bikers can run double or even single chainsets, reducing weight, clutter, and the frequency of mechanical problems.
Now, 10 speed mountain bike cassettes come in sprocket ranges such as 11-32, 11-34,11-36 and 11-42. Wiggle's best selling 10 speed mountain bike cassette is the Meanwhile, 11 speed mountain bike cassettes come in even larger sprocket ranges, providing even greater gear ratio choice, such as 11-40, 10-42 and even 11-46.
Shimano Ultegra 10 Speed Chainrings
Wiggle's best-selling 11 speed mountain bike cassette is the 12 speed drivetrains are also available for MTBs. Ratios range from 10-50 to 11-50. You may need to change your freehub before moving to 12 speed. Road bike cassettes The largest sprocket on a road bike cassette is generally smaller than those on mountain bikes, providing smaller jumps between gears.
Most have an 11, 12, or 13 tooth smallest sprocket, then between 21 and 32 teeth on the largest sprocket. The vast majority of road bikes come with a 12-25 cassette, which is suitable for most cycling terrain when paired with a compact or standard chainset. If you ride a lot of hills or struggle with hill climbing, a cassette with a lower ratio largest sprocket (one with more teeth, such as 27 or more) may be beneficial. It will allow you to keep spinning for longer, rather than grinding.
Shimano Ultegra Cassette 12 28
When selecting a cassette for your road bike, ensure your derailleur can accommodate the largest sprocket. A longer cage rear derailleur is needed for larger sprockets because more chain is required to go around the greater number of teeth. Use a small cage derailleur with a large sprocket cassette and you'll risk over-stretching the derailleur. You may also see a lot of slack chain when riding in the smaller sprockets on the cassette.
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For hill climbing and mountainous terrain, we recommend a road cassette such as the 11-28T, or the 11-34T. For flatter terrain and time trialling, we recommend a road cassette such as the 11-25T or the 11-28T. Compatibility between different cassettes It is possible to run a cassette from a different brand than the rest of your drivetrain, such as a SRAM cassette with a Shimano derailleur. However, this is not always the case. You should note the following cross-compatibility of cassette options:., on either road or mountain bike, are interchangeable with each other as the spacing is the same between the sprockets.
will only work with Campagnolo drivetrains. How do I fit my new cassette? Once you've found the perfect cassette for your bike, how do you fit it?
You'll be glad to know the process is relatively simple. You'll need a chain whip, a Shimano or Campagnolo specific removal tool, an adjustable spanner, and maybe some gloves. Similar to the cross-compatibility above, a Shimano removal tool will work with a Sram cassette. 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.