Park Tool (109917) HCW-5 Lock Spanner

Like most Park Tools, this does the job well when only the right tool will do the job.

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 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.

I regularly work on Lifecore Assault Air bikes at my gym, we have 20, and I needed a tool to remove the bottom bracket lock ring and this did the job perfectly. The reason for 4 stars and not 5? The price! For a simple piece of metal that has notches cut out of it you would expect it to cost much less. But then again Park tools are always kind of expensive. Either case it's a good quality tool, it does the job and I'm happy with it. If you are planning on using this on a bike I would suggest you look at your bottom bracket and see what kind of Lock Ring Spanner your particular bike needs. This works on a Assault Exercise bike but MAY not work on your particular bicycle. Many bicycles use different spanners depending on the model of bike. Just take a picture of your lock ring and compare it with the many spanners Amazon offers. Most likely they will have it. Good luck.

Did the rob. Item discription says it's plastic... It's definitely not.

It did what it was supposed to do. It would have been nice to have some sort of design change made to the tool to make it less likely to slip off in either direction (while juggling the pin spanner on the other side), but it does have to be made with different bike designs in mind. It worked, not much more to say than that other than I used it on my 2008 Diamondback Lucky 24 successfully, along with a Park Tool SPA-4. Update 09/01/2011 I used it again today on an old 1 piece crank on an late 80's Haro BMX. It worked great, the nut that held the chain wheel tight against the rest on the crank and kept the pin in the hole fit perfectly, and much easier than the newer style Diamondback I mentioned. All in all if I said it was good for unsealed American bottom brackets I might be selling some other options short, but I certainly would be dead on with three things I worked with. Update 11/21/2011 I found this thing works well on the lock ring for a two-piece driver also. Redline Device Rear Cassette Hub 2006+ 48H 14mm Black I used the "single tooth" side on this and guessed at 30Ft lbs (I'm pretty good as a human torque wrench). Worked great.

This tool is a very good quality but quite pricey. I used it for bottom bracket on a bike. I think one can get a spanner set cheaper than this tool alone. But as all Park Tool tools it costs a lot.

This tool was perfectly suited to my needs, as I was removing a BB-7700 which was used on dura-ace for a short time in the late 90's/early 00's. Both the single pin and triple pin ends properly engaged the lock rings on either side of the BB. Although i have large channel locks and vise-grips, I think resorting to those would have damaged my frame and possibly chewed up the ring to the point where I had a major problem. Worth the $15 to do the job properly in a few minutes! I installed a BB-5500 which is a bit heavier but maintenance free. I hoped to rebuild the BB-7700, but there were signs of corrosion on the RH spindle and the wear pattern from the needle bearings was irregular. There had been freeplay in the crank and this is the likely source. Shimano was right to ditch this design. Good park tool for a specific need.

Nel mio caso è stata perfetta per smontare la ghiera di una Bianchi primi 80. Con i tre dentini non c'è pericolo che scappi. Consigliatissima!

Gutes Preis- / Leistungsverhältnis

Buena herramienta y lo suficientemente grande para hacer la fuerza necesaria en los aprietes de la contratuerca de ejes pdalier de cazoletas. Lo únco el de tres puntos de apoyo es más grande que la contratuerca que tengo, pero con el de un sólo punto, fenomenal.

Now I'm all for buying tools that sometimes are a little cheaper but this tool changed that. All the tools I was using just wouldn't do the job as the bb hadn't been touched in 13years. Then park tool arrived and done the job in no time. Don't buy anything else. Great quality.

Works exactly as designed, had zero issue with engagment or suitable leverage to remove the lockring on an old cup and cone caged bearing lower bottom bracket from my old bike. All three pins offered engagemnt and it spun out nice and easily. For the few extra bucks the park tool is always well worth it, it's built to last and will be in my bike tool kit for decades to come.