Park Tool FR-5.2GT Cassette Lockring with Tool 12mm Pin
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BXC
> 3 dayWorks great, no need to try to keep in in place w the axle when loosening.
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mrhockey79
> 3 dayI did what is was supposed to do.
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James A. Derr
> 3 dayWorked like it should.
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Mikey J.
> 3 dayDoes what it’s supposed to do. What more is their to be said?
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Gizmo
> 3 dayUsing a conventional socket with crescent wrench is very hard, as the socket insists on slipping out constantly because of the shallow depth. The little blue rod on THIS tool fits firmly into the hub hole, anchoring the tool firmly
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Kevin Franklin
> 3 dayIf you want the best bike tools on the market get you park tools. I work on bikes for a living and they are the best!!...
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kw-2wheel
> 3 dayAnother solid product from Park tool
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rider_xyz
> 3 dayThis is the only tool I will use for XD cassettes. Great idea to have 12mm pin, keeps cassette straight during installation.
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M. Nelson
> 3 dayTool is exactly what it is intended for. Works perfectly.
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ramon d.
> 3 dayit works, but for the price I think they couldve figured out by now to make it more handy... like idk, not needing an onch socket or an awkward big ass crescent wrench. would be really nice if this could just be direct onto a socket wrench.
PARK TOOL: YOUR GUIDE TO THE WORLD OF CASSETTES & FREEWHEELS
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CASSETTE OR FREEWHEEL?To determine the type of rear sprocket system you have, find the tool fitting on the sprocket set. Spin the sprockets backwards. If the fitting spins with the cogs, it is a cassette system. If the tool fitting does not spin with the cogs, it is a freewheel system. |
CAMPAGNOLO OR NO?If you have a multi-speed cassette, you need one of two tools. If the cassette, derailleur, or shifter are labeled with Campagnolo, the tool for you is the BBT-5/FR-11. Otherwise, you will require a tool in our FR-5.2 line. |
THE RIGHT TOOLS FOR THE JOBIn addition to the correct tool, you will also need a method of driving it (such as an adjustable wrench or 1" socket) as well as a chain whip to hold the cassette in place as you remove the lockring. Park Tool makes a full line of chain whips and wrenches for this very purpose. |
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| FR-5.2 Lockring Tool | FR-5.2G Lockring Tool w/ 5mm Guide Pin | FR-5.2GT Lockring Tool w/ 12mm Guide Pin | FR-5.2H Lockring Tool w/ Handle | BBT-5/FR-11 Lockring Tool | FR-1.3 Freewheel Remover | |
| Tool Type | Cassette Lockring/Disc Brake/Suspension Fork Top Cap | Cassette Lockring/Disc Brake | Cassette Lockring/Disc Brake | Cassette Lockring/Disc Brake/Suspension Fork Top Cap | Cassette Lockring/Bottom Bracket | Freewheel |
| Tool Fitting | 12 Internal Splines | 12 Internal Splines | 12 Internal Splines | 12 Internal Splines | 12 Internal Splines | 12 Internal Splines |
| Tool Fitting Measurement | 23.4mm Outer Diameter | 23.4mm Outer Diameter | 23.4mm Outer Diameter | 23.4mm Outer Diameter | 22.8mm Outer Diameter | 22.6mm Outer Diameter |
| Typical Brands & Models | Shimano, SRAM, SunRace, SunTour, Chris King, etc. cassettes, Shimano disc brakes, Rock Shox suspension fork top caps | Shimano, SRAM, SunRace, SunTour, Chris King, etc. cassettes, Shimano disc brakes | Shimano, SRAM, SunRace, SunTour, Chris King, etc. cassettes, Shimano disc brakes | Shimano, SRAM, SunRace, SunTour, Chris King, etc. cassettes, Shimano disc brakes, Rock Shox suspension fork top caps | Campagnolo | Shimano, Sachs Aris, SunRace, DNP Epoch |
| Additional Features | Guide pin for quick-release style hubs | Guide pin for 12mm thru-axle hubs | Built-in handle |
TRUSTED SINCE 1963
Since our origins in the back of a bike shop in 1963, it has been Park Tool"s sole mission to design and manufacture high-quality tools that empower mechanics and riders of all skill levels to service their bicycles. Just like our other 500+ tools, our cassette and freewheel tools are a product of our decades of experience and expertise in the industry, in the shop and on the trail.