Oumers Universal Bike Chain Tool, Road & Mountain Bicycle Chain Breaker & Installer Kit, Chian Splitter Repair Kit

Received item as described.Worked easily removing links in chain.

It is hard to find a good chain tool that will not break. I build and refurbish bikes. This one is still going strong after many uses.

This made removing the chain easy.

Oumer's Chain tool ---- I haven't used it extensively and I admit that I bought this tool without reading all the reviews. So, from my limited experience with this tool I feel that it does the job of removing chain pins easily and efficiently. As others mentioned there were no instructions with the tool but experience with other chain break tools kept me from making mistakes that resulted in bent chain supports and broken push pins. The hollow screw (opposite the pin) needs to be screwed in to support the chain while you are twisting the handle and applying pressure to push out the pin. The hollow end will catch the pin if it is removed completely.BTW - when putting chain back together purchase new replacement pins, Yes, you can save a few $$ by using the old pin. If you completely remove the pin it is tough to align the links/holes to get the old pin in correctly. It can be done but may cause the chain to bind or seize. Replacement pins have a long slightly smaller diameter section that you insert into the chain links. This section guides the slightly larger diameter chain link pin into the holes. When the link pin is fully inserted remove the chain from the tool and use a pliers to snap off the guide section of the pin. Search Amazon for Bike chain replacement pins - know the brand of chain, number of gears in your rear cassette, and make some measurements of the chain pin length and it's diameter. this link is an example: "Shimano 10-Speed Replacement Chain Pins"If, in the future, you want to remove your chain for cleaning etc use a replacement link similar to: "YDZN Bicycle Chain Link Connector, 11 Speed Quick Master Link Joint Clip (2 Pcs,Silver)" Park tool sells a "pliers" for use when installing and removing this type of link. Again, these links are not "generic" so you'll need to know the chain you are using the replacement link in. Use of these links make it easy to remove the chain for cleaning or repair.PROs -- fits my hand comfortably and the large handle is easy to twist. in and out. The hollow screw captures the pushed out pin and supports the chain while working on it. An extra pin included in the handle along with the wire chain hookCONs - as others mentioned it is a bit large to be carrying "just in case" you need a major chain overhaul while on the trail or road. It can stay in my tool box - it fits nicely in there.Question I have: looking at the assortment of chain tools on Amazon why are there so many tools that look just like the Oumer's tool but have different names. They are all in about the same price range.. Strange....... :-)I have not received any support or compensation from Oumer's or from any company selling replacement pins or replacement links. Why give it only 4 stars? I reserve 5 stars for something that really blows my socks off. This is a good tool and "I like it"If, after using this tool more I have information to add to this review I'll do that. Till then, enjoy your days on the trail.

Easy to use

Its a good tool for riders to carry, especially mountain bikers on tough trails. In a group of riders, there is usually one rider who ignores chain lubrication. Chain breaks and needs to be shortened.The quality of this chain breaker should be checked upon arrival. The first one I ordered had teeth that were crooked, and could not accept the chain. It was a manufacturer quality issue. I returned it and got a replacement from the same manufacturer. The replaced one is a better one.Weight: relatively light weight.its a lightweight tool, compared to many other brands.

Only used once but it worked fine.

Easy to use and good quality