Park Tool FR-5.2GT Cassette Lockring with Tool 12mm Pin

Ive been using old Park cassette tool for QR axles and although it works, the tool was always getting cocked sideways in the lock ring since it was made for a quick release skewer. This tool works great for my 12mm thru axles and stays nice and square to the lock ring. One note, I always used a 24mm socket with my old tool but this new requires a 1 socket, the 24mm was too small.

Works as it should

How did I ever get by without one of these?

Use it on my cassette and one up EDC steer tube tool

So this is the 4th version of this tool that I have purchased and like all of the others, it is an improvement over my prior ones. Well, to be clear, it works well for wheels with thru-axle hubs only - I will definitely keep my other tools for my bikes with conventional axles and skewers. It also works well for removing centerlock disc rotor lockrings. Considering what I paid for my new bike with all the new tech, I figure an additional $14 for this modified tool is a reasonable investment.

Tool is exactly what it is intended for. Works perfectly.

I have to admit I was skeptical. I had a X01 cassette that didnt want to come off my Hope cassette carrier. I bought this and put it in the vice and spun the cassette and it came off easily. Maybe it was the through axle pin, maybe it was the right depth. Either way, it works for what I needed. Park Tools comes through again.

Using 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

Fits really good into the axel.

Quality product. Needs a 1” tool. I used a socket. Would have preferred that it fit directly on my socket wrench.