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  • SRAM - XG-1295 X01 Eagle 12-Speed Cassette - Black
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  • SRAM - XG-1295 X01 Eagle 12-Speed Cassette - Black

SRAM XG-1295 X01 Eagle 12-Speed Cassette


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    • Black, 10-50t

    27 Reviews


    The new spin-doctor.

    Walking your bike up a hill is a bit like wearing a cone-of-shame—exposed, dreadful, and a bit sad. Stay on your bike and avoid feelings of embarrassment with the SRAM XG-1295 X01 Eagle 12-Speed Cassette. The cassette lets you tackle moderate slopes with the typical 10-42t configuration and then click over to the massive 50t cog when the pitches start to get the better of you. Although principally designed to help keep your legs turning during power-sapping switchbacks, you also will be able to scorch flatter trails in the 10t cog, making it ideal for lighting up smooth hardpack. The stunning aesthetics of the SRAM X-Dome design not only add class to your drivetrain, but also shed weight and any mud you kick up throughout the day. Crafted to be compatible with the SRAM XD 11-sd driver, the Eagle cassette is an easily mounted workhorse ready for duty.

    • SRAM redefines 1x drivetrain functionality with a 12-speed cassette
    • 500% usable gear range is similar to double drivetrain ranges
    • X-Dome architecture yields incredible strength-to-weight ratio
    • Precision engineered for exceptional longevity
    • Compatible with SRAM's 11-speed XD Driver body
    • Works exclusively with SRAM Eagle drivetrain components
    • Item #SRM009W

    Tech Specs

    Cog Sizes
    10 - 50 t
    Cog Material
    [10-42t cluster] chromoly, [50t cog] aluminum
    Hub Type
    Claimed Weight
    355 g
    Recommended Use
    mountain bike
    Manufacturer Warranty
    2 years

    Tech Specs

    • Reviews
    • Q & A

    What do you think about this product?

    Have questions about this product?

    Got another!

    • Familiarity: I've put it through the wringer

    So good I got another one! Great cassette! If you are OK with a few extra ounces, then this is the better option over the XX1! If you want light, go with the XX1.


    • Familiarity: I've put it through the wringer

    Can't beat the Eagle, the only question was X01 or GX and I went with X01 to save some weight. This is my second Eagle drivetrain and don't expect to have any issues.

    12 speed!!

    • Familiarity: I've used it several times

    Looks so pretty and shiny coming out the box! Just put the X01 groupset on my Hightower LT and it is working great! Love the 12 speed on those long climbs or steep punchy sections.

    12 speed for the win!

    • Familiarity: I've used it once or twice and have initial impressions

    Built up my frist ride with Eagle this season on a Mach 5.5 frame this year. I LOVE the 12th gear, with short legs that extra gear has helped me get up steeper climbs like a champ!

    Great cassette

    • Familiarity: I've put it through the wringer

    I've had the XO1 group set on an SB6 and now on an SB5.5 and love the group set.

    My SB5.5 came with the GX eagle cassette on the XO1 build but wishing it came with the XO1 cassette for some weight savings that I had on my SB6

    Go Big or Go Home!

    • Familiarity: I've used it several times

    First of all this thing is a piece of art. When I first got it I wasn't sure whether to put it on my bike or hang it on my wall. It becomes equally marveling when it comes time to push up that those vertical climbs necessary to get to the epic downhills. Maybe it's just the way that the gearing works out on my bike (32T chainring) or local trails but I found myself running a more consistent gear the whole way up. Also the peace of mind of having that huge granny gear makes it comforting to know you have something to fall back on when you feel like you've got nothing left to give.

    Very nice

      Very nice craftsmanship in this cassette. All the machining and finish makes for a nice setup. Either have your LBS setup, or take great care in setting this up yourself. So far riding has allowed me to up the front chainring in size, allowing for faster downhill descents. Aside from the high price point, there’s not much to complain about with the X01 setup.

      High Quality, great options

      • Familiarity: I've used it several times

      With my 1x11 and smaller front chainring I noticed I would run out of gearing for downhill speed. The 1x12 allowed for a larger chainring up front, bringing up downhill speeds, and still allowing me the granny gears needed to get up the hill without being too fatigued to enjoy my rides.

      The quality of the cassette looks to be great as well, time will tell on overall durability, but if it's like their other cassettes, I'm sure I wont be disappointed.

      Getcha Eagle on!

      • Familiarity: I've put it through the wringer

      Wasn't sure about how necessary a 50t cog was when this first was released but after riding it a bunch, I definitely love it. Gives a nice range to allow for running a larger ring up front for that high-end speed when descending. And superrrr light.


        SRAM has got it figured out. This thing is dialed! The entire Eagle system is a huge game changer. I can't wait to get out on my bike more.

        If you have any questions about the SRAM Eagle Group or any other gear shoot me an email at or give me a call at 801-523-4053


        • Familiarity: I've put it through the wringer

        This cassette offers smooth shifting over a HUGE spread of gears. It's got a bit more weight to it than the 11spd XX1 cassette I used to run, but the additional range is more than welcomed for a bit more weight. The Black coating seems plenty durable, even when I hardly ever lube the chain.

        More range!

        • Familiarity: I've put it through the wringer

        Unreal amount of gear range with this cassette. The biggest perk I have found is I can run a chain ring with 2-4 more teeth up front, still have a great climbing gear, and have better range for descending. Yes, it is a bit pricey, but the benefits to me are worth it.

        Unreal range

        • Familiarity: I've put it through the wringer

        500% range from a 1x drivetrain. I didn't think it would work, but SRAM made it work, and work really well. I have put about 350 miles on mine so far, and it has been flawless. Shifts better than the outgoing 1x11 stuff and yet you have better range than before.

        BIG Cassette = BIG Range

        • Familiarity: I've used it several times

        Having a cassette that is larger than your rear brake rotor looks a little odd at first; but, once you ride eagle, you'll never want to go back. SRAM Eagle has completely eliminated the need to run a front derailleur on any mountain bike, which means reduced weight, cleaner handlebar setup, and less maintenance. The weight savings of the XX1 cassette over this X01 model are minimal in my opinion, so I decided to save the additional $60 and go with X01.

        You can climb a vertical wall with this*

        • Familiarity: I've put it through the wringer

        I'm riding a Yeti SB5.5 and am running a 34t chainring with this 10-50t 12speed cassette.

        The second biggest cog of this is a 42t and is what the biggest cog of the 11sp Sram cassettes. I took this as an ability to size up my front chainring to a 34t and may even bump to a 36t if it fits and if I am fit enough later in the summer.

        The biggest downside to the X01 cassette over the XX1 is that its not the blinged out gold, but the 50t dinner plate bail out cog is still a dead give away!

        If you have any questions on the cassette or what chainring to pair it with for you and your bike, give a shout to my direct line 801.204.4547 or email me at and I'd be happy to help!

        *depending on your riding skills and ability to fight gravity.

        You can climb a vertical wall with this*

        All the Gearz!

        • Familiarity: I've used it several times

        I have been using the SRAM Eagle X01 drivetrain on my new rig and I'm pretty enamored with it. The cassette is especially noticeable due to the HUGE 50 tooth ring at the biggest cog size. It really is a cheat code when getting to that gear range with a 30 tooth crank ring. The shifting has been crisp for the most part as under some poor pedal stroke weighting has caused some catching at times, but it is more pilot error than anything. Along with the cheating feeling of the 50 tooth ring, I'm finding it hard to pedal out of the highest gears as well at 10 teeth. If you have the means to, get on the Eagle drivetrain as soon as you can!

        do you need a special kind of hub to install twelve speed cassette? I currently have a 10 speed and I'm not sure if I need to buy a new hub.

        Hey Jimmy! You'll need a XD Driver freehub to install the 12sp cassette. You'll have a splined freehub body that both Sram & Shimano 10sp cassettes use, feel free to reach out to me at or 801.204.4547 and I can help get you an XD Driver if you're interested in going to a 12sp drivetrain. Cheers, Connor

        Re: sram 12-speed cassette--you write FIVE PARAGRAPHS of AD copy but don't even mention the detail everyone wants to know: WHAT ARE THE COG-SIZES. This earns you the chump of the month award