Park Tool (109917) HCW-5 Lock Spanner

Park Tool bottom bracket tool is both light weight, and heavy duty. It's made of a strong steel for durability.

This is one solid piece, was a lifesaver for me removing a seized bottom bracket ring. My other spanner was unable to remove it, but after more PB and the single tooth side of this spanner, and still quite a bit of torque, voila. Access to the bb. It is large which is useful for leverage and it feels sturdy. It is a fair price for a well known brand, when compared to local stores. I would recommend it.

This is one of those tools that just by holding it, you feel the quality. The fit and finish feels great, and it's easy to tell it's properly tempered.I was able to use it to remove a frozen cup and cone lock ring from a vintage bike whose notches had already been worn and mushroomed by previous attempts. I am confident that an off-brand cheaper tool wouldn't have performed as well.

Works fine. Suits its purpose at a reasonable cost.

Another solid bicycle repair and maintenance tool from Park Tool. I got this to remove the lock ring retaining the rear cog on my 6KU fixed gear bicycle. I have now used this tool multiple times to remove, re-install, and tighten the lock ring, and it has worked well in spite of the fact that neither end seems to be specifically for my particular style of lock ring. The side with the single tooth is a bit too wide to get a good grip on my lock ring, so I use the more crescent-shaped side with three teeth, which doesn't fit my lock ring exactly either, but still gets a good grip.Like a good pedal wrench, the flat profile of this tool allows it to easily slide into the tight spaces it needs to go to do its job, and the solid construction insures that it won't break or bend in use. It also takes up little space in a pack, so I usually carry it with me in case my lock ring slips.This is a simple, durable, and handy tool that every bicycle mechanic, whether professional or amateur, should have in his collection.

This bottom bracket lock ring tool does double duty in that it has three lugs on one end and a single lug on the other. I thought it was going to be an exact fit on my damaged (by me) lock ring, based on size of tool listed online. Wrong. BUT I still barely got two of the lugs to engage my old damaged ring and successfully removed it. I then filed the lock ring notches to square that were rounded over and voila! problem solved. It fits my other bikes lock ring PERFECTLY. Solid tool well made. All park tools are expensive, though worth the cost, in my experience.

Works perfectly and is pretty universal. It can remove multi-notched lock/retainer rings.

This is yet another quality Park tool that does what it should. It even works well on vintage Stronglight bottom brackets like the one on my 1970s Peugeot.