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  • Park Tool FR- 5.2 Cassette Lockring Tool
  • Park Tool FR- 5.2 Cassette Lockring Tool
  • OptionsPark Tool -
  • Park Tool -
Park ToolFR- 5.2 Cassette Lockring Tool
$7.95 - $8.95

Item # PAR003R

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  • Fr-5.2, NO PIN ($7.95)
  • FR-5.2G, With Pin ($8.95)
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Item # PAR003R

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
Tech Specs
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

Reviews & Community


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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.

    What is the difference between the pin and no pin? I'm trying to attach a cassette to a road wheel.

    Park describes the pin as helping to stabilize the tool


    • Familiarity: I've put it through the wringer

    Just what I needed. My old cassette tool would not fit this bike. I found this Park tool better and cheaper here than the shop I go to.

    Works as advertised

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

    Works as I expected. A nice item to have.


    • Familiarity: I've used it several times

    It was necessary to buy this to swap out my casseette and upgrade to the Eagle GX drivetrain. Worked great, can't go wrong.

    Gotta Have one

    • Familiarity: I've put it through the wringer

    Do yourself a favor and pick one up. Not worth having to go to a shop to pull your cassette. Quality tool from Park tool.

    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.