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  • Park Tool - FR- 5.2 Cassette Lockring Tool - Fr-5.2
  • Park Tool - FR- 5.2 Cassette Lockring Tool - FR-5.2G

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  • Park Tool - FR- 5.2 Cassette Lockring Tool - Fr-5.2
  • Park Tool - FR- 5.2 Cassette Lockring Tool - FR-5.2G

Park Tool FR- 5.2 Cassette Lockring Tool

$6.95 - $8.95

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    • Fr-5.2, NO PIN
    • FR-5.2G, With Pin


    15 Reviews


    On lock down.

    Removing a cassette is near impossible without a proper lockring tool, which is why Park Tool hooks it up with the FR-5.2 Cassette Lock Ring Tool. Designed to make your life a little easier, this lockring tool uses a one-inch base perfect for fitting on wrenches or bench vices, and makes it easy to remove cassettes without the removal of cones and locknuts. It has a 12-spline design, and works on Shimano, SRAM, SunRace, Chris King, and other cassette lockrings, along with some Shimano disc brake lockrings.

    • A tool for locking down your cassette
    • Small and handy, easy to use with a variety of cassettes
    • 1-inch hex base is can be adjusted with a wrench
    • Thin wall construction eliminates need for removing cones and locknuts
    • Item #PAR003R

    Tech Specs

    heat treated alloy tool steel
    Shimano, SRAM, SunRace, SunTour, Schris King and other cassette lock rings
    Recommended Use
    bike maintenance
    Manufacturer Warranty
    limited lifetime

    Tech Specs

    • Reviews
    • Q & A

    What do you think about this product?

    Have questions about this product?

    It is a Park tool so enough said

    • Familiarity: I've used it several times

    Works great for my Shimano cassettes. Might miss the pin for ease of use but this thing gets the job done. Usual park quality and will last a long long time.

    Pin/No Pin

    • Familiarity: I've put it through the wringer

    I have both. The guide pin works great for QR wheels but that is quickly becoming dated so I picked up the non-pin version for the extra versatility. A little extra care is needed to make sure it is perfectly flush without a guide but works like a champ. The 12mm pin version is also on my wishlist as soon as they come back in stock as XD cassettes can sometimes be a bear. Another great tool from Park, will last a lifetime plus some and absolutely required for any home mechanic's box.

    You just have to have one

    • Familiarity: I've put it through the wringer

    Lots of fancy crombie tools out there with integrated handles to drool over but this classic piece can go anywhere and gets the job done. Period. In most tool boxes I would assume. pick one up for your next drive train upgrade or maintenance project.

    Go To Tool

    • Familiarity: I've put it through the wringer

    Simply, strong and classic tool from Park. I prefer the one with the 12mm pin for use on my mountain bike, but this is the classic that can be used for all bikes and axle sizes.


    • Familiarity: I've put it through the wringer

    I use this to remove the cassette on my road bike, swapping it back and forth to my Wahoo Kickr Core. This is a sturdy tool that I can only imagine will last the rest of my life. This pairs well with the Park Tool Cassette Pliers and a helpful tip when using this lockring is to secure your skewer in place to keep it from jiggling around.

    Perfect tool for the job

      Removing cassettes is super easy with this Park tool. I’ve used this on SRAM force and Apex but it will work with a wide range of cassettes. Takes a few seconds to remove or reinstall with this badboy, a crescent wrench and the Park Tool cassette pliers.

      Great addition to the bike drawer

      • Familiarity: I've put it through the wringer

      Really helpful when trying to remove your cassette to give it a good cleaning. Everyone should have this in their tool arsenal.