The Park Tool CM-25 Professional Chain Scrubber, click to enlarge
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Item # CM-25

/ Tools / Chain / Cleaning

Professional Chain Scrubber

A shop version of Park Tool's world famous Chain Scrubber built for daily use. The CM-25 features a super-tough die-cast A380 aluminum body and handle, plus a unique brush/sponge replacement cartridge for easy cleaning and replacement. Our proven four-brush scrubbing design cleans chains thoroughly inside and out, and dual-sided sponges and wicking pads help to reduce drips. The brush and sponge cartridge quickly and easily clicks in and out for cleaning and replacement. 100% serviceable and rebuildable, the CM-25 is a shop-quality cleaner built to give years of constant use.

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CM-25 Features

  • Compatible with all multi and single-speed chains*
  • Replaceable brush set (part # RBS-25)



  • Bikerumor: Winter Maintenance Tips The first step to cleaning a bike is to degrease all of the dirty parts because a regular “bike wash” solution won’t cut through the oil soaked grime. To conquer this feat, Park Tool‘s’ new CM-25 shop level chain scrubber came to the rescue. The die-cast aluminum casing & handle on Park’s newest chain cleaner is strong enough to stand on (don’t) and houses 4 scrubbing stages that the chain passes through.

  • CyclingTips: Park Tool CM-25 Chain Cleaner Review I’ve tried many chain cleaning tools over the years, and while some have been better than others, I’ve managed to either break or wear out every single one of them – a feat that shouldn’t be so surprising when you consider that all of them have been made of plastic. All, except for Park Tool’s CM-25 Professional Chain Cleaner.

Parts & Accessories


Replacement Parts


Replacement Brush Cartridge for CM-25

CM-25 Professional Chain Scrubber