Park Tool FR-5G Cassette Remover with Guide PinPark FR-5G Cassette Remover - Great for Home Mechanics
Regarding Tesh P's comment: the guide pin means that it ONLY works with hollow axles--not primarily. ONLY. You cannot use this tool on a wheel with a solid axle. After removing over three-thousand cassettes, though, I can tell you that I have never once seen a cassette wheel with a solid axle. They're not impossible, but usually you see cassettes paired with QR's and freewheels paired with bolt-on axles. Like I said, a solid axle/cassette combo isn't impossible--it's just not standard. Now regarding the functionality of this tool: It's not uncommon for cassette removers without guides to pop out of the lockring. This is especially common in older wheels where the distance from the lockring to the freehub body seal isn't very long and you only have a few millimeters of clearance for the teeth to fit into. Even in those extreme cases, the guide prevents slippage. This tool is dialed. I would buy this first, and then buy one without a guide pin if you ever run into the white whale of hubs: a freehub body with a solid axle.
Purchased this for removal of a shimano RT-68 centerlock rotor, works well, and serves a 2nd purpose as a cassette remover.
This tool is very helpful for me, I now can do maintancene work to my 29er Rear hub and Freewheel, work very well and have a solid material construction.
Great tool easy to use because of the pin. Never broke it or anything and very satisfied!
Another indispensable tool for wrenching on your bike. Park Tools' quality is unmatched in the bike tool industry.
Awesome tool. Guide slides tightly into a quick release set up but also work on 12mm through axles. It's just as easy to use on either one (The guide doesn't stop it from working on 12mm). Not sure what that previous reviewer was talking about. If you have a splined cassette lock ring, this tool installs/removes them PERFECTLY and IT DOESN'T CARE WHAT TYPE OF AXLE YOU HAVE! I give it five yellow middle fingers!!!!!
The guide pin means this primarily works with quick-release hubs. Consider one without the guide for more versatility.
Makes changing out your cassette a breeze. Should last a lifetime.