Shopping Cart

Your cart is empty.

Your cart is empty.

ParkTool Tool Park GSC-4 Cassette Clean Brush, Blue

4.5 (13) Write Review
Free shipping on orders over $29.99

$9.61

$ 4 .99 $4.99

In Stock

About this item

  • Sturdy, contoured brush for all manor of cleaning applications
  • Ergonomic handle
  • Strong ergonomic handle and stiff nylon bristles
  • Perfect for cleaning cassettes, freewheels, and tires


Product Description

Park Tool GSC-4 cleaning a bicycle cassette

Park Tool GSC-4 Bicycle Cleaning Brush for Cassettes, Tires, Frames, etc.

The Park Tool GSC-4 is a sturdy bicycle cleaning brush with a unique angled and contoured shape – perfect for cleaning cassettes and freewheels as well as tires. With a strong ergonomic handle and stiff nylon bristles, the GSC-4 scrubs away the toughest muck and mess.

A CLEAN BIKE IS A HAPPY BIKE

Park Tool makes a full line of brushes and cleaning tools to keep your bicycle performing and looking its best. Here's a selection of our purpose-built bicycle cleaning brushes, with different shapes and sizes to get into the unique nooks and crannies found on bikes:

TRUSTED SINCE 1963

Since our origins in the back of a bike shop in 1963, it has been our sole mission to design and manufacture high-quality tools that empower mechanics and riders of all skill levels to service their bicycles. Each one of our 500+ tools is a product of our decades of experience and expertise in the industry, in the shop and on the trail.


Kennethschwartz
2025-09-05 16:05:53
Excellent, inexpensive brush that I use frequently for otherwise difficult to clean areas in my ten speed bike. Very happy with this purchase, thank you.
Customer
2025-06-26 10:05:03
This makes cassette cleaning a breeze with the tapered bristles allowing to clean at least 5 cogs at a time. Also helpful with cleaning jockey wheels. Only used once but seems sturdy enough to last me years before bristles start weakening.
EAMCiou
2025-06-17 10:42:37
It’s designed specifically for cassettes and it does a good job. It’s also quite durable. Another good tool from Park
Me, Myself and I
2025-06-08 10:23:15
It does what I need it to do.
David Blankenburg
2025-05-16 18:45:40
This works better than other things I’ve tried, but the brush doesn’t seem like the bristles will hold their shape over time. Haven’t used it long enough to confirm that yet.
Oleg Melamed
2025-04-07 12:59:09
A proper brush for cleaning the drivetrain.
Johny Bee
2025-04-03 19:59:41
Beats all my other brush's s
D LeBlanc
2025-04-02 14:57:07
Beats scraping a screwdriver across each cog. The brush is angled to conform to the cassette.
amREADY Consulting
2025-02-22 09:24:45
Cleans the rear (and front) chain rings. Also works for other misc bits and pieces. The beveling of the brush is a nice touch for doing the rear cassette.
Carlo Conti
2025-02-02 18:32:56
La spazzola risulta efficace per la pulizia di pacco pignoni, guarnitura e in generale per parti del cambio. Acquistata su werehouse ha un prezzo accettabile altrimenti il prezzo è eccessivo.
Mr. R. Fox
2025-01-26 16:36:38
An absolute must when cleaning chain and sprockets, firm enough to remove all the stuff from them but supple enough to move into all the gaps. My chain has never been cleaner.
Mr Foxi
2025-01-11 18:36:35
Really solid stumpy brush. Bristles are a good strong nylon and the shape of the brush fits the cassette well.
Sparky Steve
2024-11-25 19:54:56
Now we know ParkTools are very good,but not this brush.i'm getting better results by using a washing up brush at a tenth of the price