

🔧 Own the ride with the ultimate cassette lockring tool—because your bike deserves the best.
The Park Tool FR-5.2 is a precision-engineered bicycle cassette lockring tool featuring 12 splines and a 23.5mm diameter, made from heat-treated alloy steel for exceptional durability. Designed and manufactured in the USA, it fits the majority of freehubs and some Shimano disc brake lock rings, making it an indispensable, compact, and lightweight addition to any serious cyclist’s toolkit.












| ASIN | B01LX3E08Z |
| Best Sellers Rank | #7,121 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #6 in Bike Shop Tools |
| Brand | Park Tool |
| Brand Name | Park Tool |
| Color | Metal |
| Customer Reviews | 4.8 out of 5 stars 2,994 Reviews |
| Drive System | Armbar Drive |
| Folded Size | 1 inch |
| Global Trade Identification Number | 00751738922255, 00763477003485 |
| Included Components | Cassette and Freewheel Tools |
| Item Dimensions | 0.01 x 0.01 x 0.01 inches |
| Item Height | 0.01 inches |
| Item Type Name | QKFR52 |
| Item Weight | 1.6 ounces |
| Item dimensions L x W x H | 0.01 x 0.01 x 0.01 inches |
| Manufacturer | Park Tool |
| Manufacturer Warranty Description | Limited Lifetime Warranty - See parktool.com/warranty |
| Material | Metal |
| Material Type | Metal |
| Model Number | QKFR52 |
| Number of Pieces | 1 |
| UPC | 751738922255 763477103987 763477003485 |
| Unit Count | 1.0 Count |
R**Y
Good tool to have in your kit.
The usual excellent Park Tool quality. This is one to have in your tool kit, as it works with 80% of the freehubs you're likely to encounter. You pay a little more for Park tools, but if "Made in the USA" means anything to you, and you want your tools to last, it's worth the extra cost. Well packaged
A**R
Works on Sram cassette
Tool was as described and fit the cassette well.
S**B
Park tool
High quality tool,fits perfect,does it's job as designed
M**K
Quality tool
Quality tool as usual.
J**.
Well built and works perfectly
This worked perfect for removing the rear cassette from my bike. I did not get the tool that wraps around the cassette but I was still able to remove the cassette using a technique I found on the web (e.g. "what to do if you our out in the field and need to replace it".). Park tool seems to make some of the best tools for bikes and is a good value based on the quality of the product.
H**8
Does not fit Shimano cassettes, but made it work anyway.
I bought this tool to remove the broken Shimano cassette off my Schwinn Sidewinder. It is a hair too big to fit Shimano cassettes so I filed it down a little bit to fit. After I did that, the tool removed the cassette with no problems. It is a little on the expensive side but is good quality. If you are using this with a Shimano cassette, be prepared to do a little bit of modification to the tool. To turn the tool in the cassette, I gripped it with some Vice-Grips. Overall, I recommend this as long as you aren’t against modifying the tool to fit your cassette if you have a Shimano.
G**S
The right tool for SRAM XPLR brake discs
Worked perfectly for locking down my SRAM disc breaks on Zipp 303 wheels.
B**Z
100% recommend
Great grip very durable easy to use locks in great and quality value
Trustpilot
2 days ago
3 days ago