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ParkTool Tool Park GSC-3 Drivetrain Clean Brush

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

$7.85

$ 3 .99 $3.99

In Stock

About this item

  • Ideal Product
  • Contoured tip for picking grit and dirt out of tight spaces
  • Dual-sided brush specifically designed for cleaning hard-to-reach areas of the bicycle drivetrain


Product Description

Park Tool GSC-3 cleaning different parts of the bicycle drivetrain

Park Tool GSC-3 Drivetrain Cleaning Brush for Bicycle Cassettes, Sprockets, Chains and Components

This dual-sided brush is specifically designed for cleaning hard-to-reach areas of the bicycle drivetrain. The long, stiff bristles of the GSC-3 are narrow enough to reach between the gears of tightly-spaced modern cassettes, while the slim contoured end is capable of picking grit and grime out of tight spaces such as derailleur pulley wheels.

GSC-3 Cleaning Brush cleaning an inner chainring

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:

Park Tool bike shop repair center vintage

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.


Brandon marsh
Reviewed in the United States on May 25, 2025
Park tools are always a win, they keep improving and that keeps me coming back !
Sergej Grabun
Reviewed in Germany on February 20, 2025
Such a useful too. The bristles are quite firm which is very useful to agitate debris.Super.
Melissa
Reviewed in the United States on September 19, 2024
It's a park cleaning brush. Would buy again
EdGordonJr
Reviewed in the United States on June 7, 2024
Makes quick work of removing gunk & gore from your chainring, around bottom bracket, in and around freewheel and cassette...
Keith Crossgrove
Reviewed in Canada on November 4, 2024
Good tool for getting into the 12 speed gears
Christine Tobin
Reviewed in the United States on November 16, 2023
The pick end is perfect for getting in between the cogs on the casette! Great tool!
D.Zimmerman
Reviewed in the United States on December 3, 2022
A well made tool like we've come to expect from Park. The stiff bristles on one end, and the thin pointy bit on the other are perfect for picking debris out from between the cogs of a 12 speed cassette, and clearing mud and grease out of a rear derailleur. Works as advertised. What else can you ask for?
Customer
Reviewed in the United States on August 6, 2021
I cleaned the sand off my rear cassette sprockets with this brush. Worked well for that. I also cleaned sand particles from rear derailleur too. These are hard areas to clean, this brush will be one of my main tools for keeping them clean. (Not perfect, but works well. I hold brush behind rear sprockets, in line with them vertically, and turn crank SLOWLY.)
Peter Gayeska
Reviewed in the United States on August 18, 2021
Only brush end works, blade end doesn't fit 12 speed cassette.
Stephen
Reviewed in the United States on October 1, 2021
Does an excellent job, hope it holds up!