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Park Tool GSC-1 Gear Cleaning Brush

Park ToolGSC-1 Gear Cleaning Brush(Return to Product Page)

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(16 customer reviews)
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User submitted reviews

Review by Casual Cyclist

Just What I Needed
by Casual Cyclist
Grand Rapids MI

Functional design. It will reach the crevices my other brushes can't. Well made.

Reviewed 2/9/2023
Thank you for your feedback.

Review by Steven

Excellent quality for the low price!
by Steven
Cycling Enthusiast
Raymond,MN

This is truly a quality tool I've needed for many years. This brush & gear teeth are perfect for cleaning my rear cassette, derailer & idler wheels. Beats heck out of the toothbrush & Q-tips I've used till I got this tool. It doesn't leave fuzzy cotton between gears like the Q-tips did.

Reviewed 10/8/2018
Thank you for your feedback.

Review by NM Biker

Durable and effective
by NM Biker
Cycling Enthusiast
Albuquerque, NM

Works great and seems to be holding up. better than the old utility brush i had laying around for detailed scrubbing around cassettes, derailleurs, and other nooks and crannies. I like the teeth on the backside for 'flossing' out grasses and other stringy material out from between gears.

Reviewed 12/3/2021
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Review by seabiker

Works good.
by seabiker
Cycling Enthusiast
Oregon Coast

Works as advertised.

Reviewed 2/11/2015
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Review by Sam

Great cleaning tool
by Sam
Cycling Enthusiast
Seattle

Essential tool for cleaning the cassette.

Reviewed 9/9/2019
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Review by Jon

Handy little grease monkey
by Jon
Cycling Enthusiast
Nashville, TN
1 of 1 customers found this review helpful.

This isn't fancy, but it sure is designed well for its purpose. I can get in between the cogs with either the brush or the plastic toothy end of the tool, helping to keep my drivetrain clean. It is durable. The bristles are pretty stiff, so don't worry about fraying them with aggressive scrubbing. A well-placed hole allows me to hang it from my peg board in the shop area of my garage.

Reviewed 1/31/2019
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Review by Houston Bike Boy

Clean gears and chains work better and last longer.
by Houston Bike Boy
Daily Commuter
Houston, Texas

It only takes a moment to brush the crud out of the gears.

Reviewed 12/13/2018
Thank you for your feedback.

Review by PedalingOrlando

Great tool
by PedalingOrlando
Orlando

Awesome stiff brush for my drivetrain cleaning. The only way to roll is with a bling bling drivetrain.

Reviewed 9/10/2021
Thank you for your feedback.

Review by Grollend

Simple but effective.
by Grollend
amherst,NH

Having this tool in your arsenal is critical for keeping your free wheel and other parts free of road grim.

Reviewed 5/4/2018
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Review by Anonymous

Great for cleaning cogs as both sides fit.
by Anonymous
Cycling Enthusiast
Portland, OR
1 of 1 customers found this review helpful.

I like this because it allows me to do a very thorough cleaning of bicycle cogs. Even with regular chain cleaning, winter riding can gunk up the cogs and rear derailleurs, so this tool is great for getting to the hard-to-reach places.

Reviewed 4/3/2018
Thank you for your feedback.

Review by Anonymous

More awesome than a normal brush
by Anonymous
Cycling Enthusiast
Portland, OR

Something you don't think you need, but you do. Cleaning between the cogs on the back with the "hook" on the brush is really nice.

Reviewed 9/10/2020
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Review by Loutog

Gets into hard to reach places
by Loutog
Cycling Enthusiast
b

Great brush. What more to say?

Reviewed 11/11/2013
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Review by MarkD

Works well getting the road junk off the moving parts
by MarkD
Central California

I purchased the GSC-1 cleaning brush with the Park Tool CM-5 Chain Cleaner. A great combination of tools to make those bike parts sparkle.

Reviewed 10/18/2013
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Review by ja

Does the job
by ja
Cycling Enthusiast
Asbury, NJ
1 of 1 customers found this review helpful.

Does the job better than anything else I've tried. Along with a small amount of degreaser, the combination of stiff bristles and scraper work well in getting buildup off the cogs.

Reviewed 10/10/2012
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Review by b. hicks

It does the job!
by b. hicks
Vancouver, WA
1 of 1 customers found this review helpful.

Works a whole lot better than the comination toothbrush thing I was using before. I'd recommend it!

Reviewed 10/1/2012
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Review by Anonymous

works great for getting out tough grime
by Anonymous
Cycling Enthusiast
New York City
2 of 2 customers found this review helpful.

Bristles are stiff and long enough to get out caked on grease on both cassette and between the small and large chain rings.

Not sure if the toothed semi-circle thingy is all that useful.

Reviewed 9/20/2012
Thank you for your feedback.