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  • Park Tool - CM-5.2 Cyclone Chain Scrubber - Black
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  • Park Tool - CM-5.2 Cyclone Chain Scrubber - Black

Park Tool CM-5.2 Cyclone Chain Scrubber

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    • Black, One Size
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    19 Reviews


    A clean chain is a happy chain.

    Dirt in your drivetrain is a bummer for all sorts of reasons, but Park Tool's CM-5.2 Cyclone Chain Scrubber makes it easy to keep your links clean. An internal reservoir holds two ounces of chain cleaner, a magnet keeps small particles from reentering your chain after they've been brushed out, and stiff brushes work out grime without damaging your chain. There's even a small sponge to absorb extra solvent and make sure your chain doesn't hold onto degreaser after it's been cleaned.

    • Plastic casing
    • 2oz solvent reservoir
    • Internal sponge
    • Item #PAR000Z

    Tech Specs

    2 L
    Recommended Use
    cleaning chain

    Tech Specs

    • Reviews
    • Q & A

    What do you think about this product?

    Have questions about this product?

    Solid for home mechanic-a little fragile

    • Familiarity: I've put it through the wringer

    I'm on my second or 3rd park chain tool now (generally getting a few years of use out of each). For the occasional, careful use, this thing is great. The scrubbers and sponge and magnet take a dirt and oil mucked up chain back to sparkling with some simple green or other solvent/degreaser. I think you can buy replacement internals if you ever wear them out from use (I tend to break it before I reach the useful life of the internals--see my next comment). If there is any downside--and I think this applies to all 'home use' chain cleaners of this style--is its built of plastic. Keeps cost down I'm sure--but knock it off your garage workbench, crunch it in a bag in the back of your truck for a Moab roadtrip or get a little crazy running the chain through there and you are likely to crack or break the plastic body. Park introduced a metal body, 'shop quality' version for about 4x the price. If you're hard on stuff, maintaining a fleet of bikes and/or intend to be a lifelong cyclist, you may want seek out that one (Park CM 25).

    Keep that Chain Sparkling

    • Familiarity: I've put it through the wringer

    I use this in conjunction with the Park Tool ChainBrite and it works phenomenal! Very easy to use and clean and nothing will get your chain cleaner. Instead of attempting to scrub with a brush, do yourself a favor and just invest in one of these... trust me (from experience).


    • Familiarity: I've used it several times

    The chain is definitely the dirties, grimiest part of my bike. Fill this bad boy up with some chain cleaner, clamp it on and start crankin! Does an excellent job of cleaning not only the chain but the cassette and the chainring as well. Something to note... you will get a lot of nasty liquid coming out the bottom of this thing as you run your chain through, make sure nothing of importance awaits below.

    Clean and Effective

    • Familiarity: I've used it several times

    Gone are the messy old days of scrubbing on my chain with a brush only to get filthy and not really get my chain perfectly clean. This things is simple in operation, just snap it on the chain with cleaner and spin the crank, and effective in getting your chain squeaky clean without splattering old grease and dirt in every direction. I love it.

    Love it, but it broke!

    • Familiarity: I've used it several times

    A clean drivetrain is a beautiful thing, and this helped to get my chains cleaner than I ever had before. Super easy to use, and the brushes hit the chain from all sides. Unfortunately, I was only able to use it maybe five times before it broke while I was using it. As you should see from the picture, one of the little plastic tabs that holds a metal spindle as an anchor for the metal clamp broke off so I don't have a clamp on one end now (hopefully that sentence made sense). I was running the chain through it and it simply broke off and I heard the clamp hit the floor. I will still be able to salvage it if I just clamp it down with my hand or use tape, but it was disappointing to have it break so soon due to a tiny, weak spot of plastic. It is a 5 star product, but I have to knock a star off for durability.

    Love it, but it broke!

    Easy to keep it clean

    • Familiarity: I've put it through the wringer

    I used to use a rag and solvent to clean my chain, but after purchasing this chain tool it's been far too easy to keep my chain clean.... like thoroughly clean. Not only does your bike looked blinged out, but a clean chain reduces wear on your cassette, chainring, and derailleur. So keep it clean!

    Quick and (not)Dirty

    • Familiarity: I've used it several times

    The reason I like this so much is that it makes cleaning your chain a fast and clean process. Instead of using a bike toothbrush that can lead to greasy water particles splattering around, this seems to keep everything contained in a nice, neat package.
    It's so easy to use, and if you clean and re-lube your chain frequently (as you should), it's a great tool to have.

    Treat yo' self

    • Familiarity: I've used it several times

    I appreciate the level of thought that was put into such a small and simple device. The magnet at the bottom of the reservoir collects small pieces of metal to prevent the brushes from grinding potentially damaging material into your drivetrain, while an integrated sponge soaks up excess cleaner from the chain. Seems simple, but you won't find those features on similar models from competitors. And all for an equivalent, if not lesser price. Is it a necessary tool? No. Is it a bit of a luxury item? Maybe, but it makes life that much easier and helps me be more proactive about keeping my drivetrain clean.


    • Familiarity: I've used it several times

    It Does its Job extremely well. I love that all the brushes can be removed so you can clean the Tool after use with ease. IT is great!!

    4 stars because if you don't keep the chain centered on the crank chainring, you can easily drop the chain

    Works Great

    • Familiarity: I've used it several times

    Used this to clean a chain that hadn't been touched in 4 years and it was amazing. The chain looks as good as it did when it was new. Best part is that this tool is just so ridiculously easy to use.

    we dont need no squeakin' chain

    • Familiarity: I've put it through the wringer

    Does exactly what it says and gets your chain nice and sparkly clean, will never use anything else again. It's super easy to setup and quickly scrubs all the muck off your chain, even with a soapy solution instead of heavy degreasers. There are several brushes that hit the chain from all angles and really gets into the nooks.

    This works great.

    • Familiarity: I've put it through the wringer

    This tool does what it say it will! Easy to use and removes all dirt and oil from chain quickly and effortlessly. Well made and the brushes and sponge is replaceable. Love tools that work and do what you expect them to do. The Cyclone Scrubber works!

    Works Great!

    • Familiarity: I've put it through the wringer

    I've had my chain cleaner for over a year and it works great with Park Chainbrite. I've tried it with other degreasers but nothing has came close to using this with Park Chainbrite. It is very easy and simple to use and does an amazing job.

    Simple & Effective

    • Familiarity: I've used it several times

    Are you a cyclist? Do you like a squeaky clean chain and smoother shifting? If so, buy one of these bad boys.

    Lean your bike against the wall, or in a work stand if you're a rich fancy pants, fill up the reservoir with whatever household degreaser you have, and pedal backwards, keeping the chain centered with the crank chainring. Combine this with a cassette brush, and you've got a solid transmission cleaning system that will keep you running smooth between full overhauls.

    Giving it 4 stars because if you don't keep the chain centered on the crank chainring, you'll drop the chain or bind it up in the derailleur.