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🔧 Own the ride, master the maintenance.
The Park Tool FR-5.2 is a precision-engineered cassette lockring tool made from heat-treated alloy steel, featuring 12 splines and a 23.5mm diameter for compatibility with most bike cassettes, including Shimano disc brake lockrings. Manufactured in the USA, it offers durability, portability, and professional-grade performance backed by a limited lifetime warranty.












| ASIN | B01LX3E08Z |
| Best Sellers Rank | #8,363 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #15 in Bike Shop Tools |
| Brand | Park Tool |
| Brand Name | Park Tool |
| Chain Or Strap Head Outside Diameter | 23.5 millimeters |
| Color | Metal |
| Customer Reviews | 4.8 out of 5 stars 3,122 Reviews |
| Finish Types | Naturfarben |
| Global Trade Identification Number | 00751738922255, 00763477003485 |
| Head Style | Hex |
| Included Components | Lockring removal tool |
| Item Length | 7.5 inches |
| Item Package Quantity | 1 |
| Item Type Name | QKFR52 |
| Item Weight | 1.6 ounces |
| Jaw Capacity | 23.5 millimeters |
| Manufacturer | MDSL4 |
| Manufacturer Part Number | QKFR52 |
| Manufacturer Warranty Description | Limited Lifetime Warranty - See parktool.com/warranty |
| Material | Alloy Steel |
| Material Type | Alloy Steel |
| Measurement Standard | Metric |
| Model Number | QKFR52 |
| Number of Items | 1 |
| Number of Packs | 1 |
| Package Quantity | 1 |
| Spanner Wrench Hook Depth | 23.5 millimeters |
| Spanner Wrench Pin Length | 23.5 millimeters |
| UPC | 751738922255 763477103987 763477003485 |
| Unit Count | 1 Count |
P**R
Does the job!
Fits my bike perfectly, great tool!
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.
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
T**L
Solid - Semi Universal - Good Price - Lifetime Tool - Requires 1" Wrench
Most of the Park Tool mechanics tools are built to survive a lifetime and this cassette locking tool is no exception. This is one of the most common lock ring standards for Shimano cassettes. While Park does make some variants to this that have guide pins (offering a bit more stability) this tool is more universal and it compatible with eBike and other hubs where the axle must pass through this tool in order to slip over the rim. If you're wondering, you'll need a 1" box wrench (or similar tool/adjustable wrench) to spin this. I have a 1" craftsman that provides excellent leverage, though a nice Tekton like this: https://amzn.to/4vNJS7H It's about the same quality but cheaper. I'd pick one of these up if you don't already have one, it's a great pairing with this tool. Great stuff as always. Cheaper than a visit to the LBS and the satisfaction of working and repairing things yourself.
A**R
Works on Sram cassette
Tool was as described and fit the cassette well.
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.
P**A
lockring tool is great
excellent tool and a must have for 10 speed cassette.
K**N
Good tool
A bit pricey but gets the job done
A**N
Park tools are always good
Park tools are always good
C**E
Douille pour cassette Shimano
Douille pour cassette Shimano, adapté pour clé dynamométrique PARKTOOL
B**S
Alles bestens
Perfekt verarbeitet! Hätte ich abet quch nicht von Park Tool anders erwartet.
J**C
Bonne qualité
Bonne qualité, comme souvent avec les outils Park tools
A**A
Una garanzia
Attrezzo preciso e robusto, proprio quello che cercavo
Trustpilot
2 weeks ago
3 weeks ago