{"id":11254,"date":"2023-03-27T16:57:35","date_gmt":"2023-03-27T20:57:35","guid":{"rendered":"https:\/\/joyfultriathlete.com\/?p=11254"},"modified":"2023-03-27T16:57:40","modified_gmt":"2023-03-27T20:57:40","slug":"bike-chain-direction","status":"publish","type":"post","link":"https:\/\/joyfultriathlete.com\/bike-chain-direction\/","title":{"rendered":"Know your bike chain direction! Yes, there is one!"},"content":{"rendered":"\n

Bike chains are quite cheap components. If you enjoy taking care of your bike, you have probably already changed your chain. This component gets used relatively fast if you cycle lots of miles per year and is easy to change to prevent early wear to the cassette and plateau. <\/p>\n\n\n\n

But did you wonder whether there is a direction when installing the chain? Can you put it the way you want, or is it supposed to be mounted in a specific direction?<\/p>\n\n\n\n

Are bike chains directional?<\/h2>\n\n\n\n

Not all bike chains are directional. It depends on the brand and model. Most of Shimano’s chains are directional. SRAM, KMC, and Campagnolo make only non-directional chains. But if you remove a worn chain and put it back, then direction matters, whatever the chain brand.<\/p>\n\n\n\n

I will explain later in this article why, if you remove a chain and put it back on the bike, it is ESSENTIAL that you are careful about its direction. But first, let’s focus on brand-new bike chains.<\/p>\n\n\n\n

Why do some bike chains have a direction for installation?<\/h2>\n\n\n\n

Some bike chains are directional for the best gear-shifting performance. It can be due to the plating being different on the inner and outer links, or to a slightly asymmetrical chain to help with up-shifting.<\/p>\n\n\n\n

The coating on the chain is key to reducing friction and preventing corrosion. A combination of Nickel and Teflon coating usually works best for smooth movement, but both aren’t needed on the outer links of the chain. So, more expensive chains often have the inner links coated with Nickel and Teflon, while only using Nickel for the outer ones.<\/p>\n\n\n\n

How to know if a bike chain is directional<\/h2>\n\n\n\n

All SRAM, KMC, and Campagnolo chains are NOT directional. Only Shimano makes directional chains, but not all are.<\/p>\n\n\n\n

As a general rule, directional bike chains have markings engraved only on one side of the chain. Generally the brand logo but sometimes just a reference, like in the picture below where you can see the model engraved.<\/p>\n\n\n

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It is also a good practice to check the owner’s manual and\/or dealer’s manual of the bike chain reference you wish to install. It will clearly specify if the chain is directional or not, as well as detail the instructions to install correctly this specific bike chain.<\/p>\n\n\n\n

But to help you, I have made a list of Shimano’s directional bike chains:<\/p>\n\n\n\n

    \n
  • CN-4601<\/li>\n\n\n\n
  • CN-5701<\/li>\n\n\n\n
  • CN-6701<\/li>\n\n\n\n
  • CN-6800<\/li>\n\n\n\n
  • CN-7901<\/li>\n\n\n\n
  • CN-9000<\/li>\n\n\n\n
  • CN-E8000-1<\/li>\n\n\n\n
  • CN-HG600-11<\/li>\n\n\n\n
  • CN-HG601-11<\/li>\n\n\n\n
  • CN-HG700-11<\/li>\n\n\n\n
  • CN-HG701-11<\/li>\n\n\n\n
  • CN-HG900-11<\/li>\n\n\n\n
  • CN-HG901-11<\/li>\n\n\n\n
  • CN-M980<\/li>\n\n\n\n
  • CN-M981<\/li>\n\n\n\n
  • E6090-10<\/li>\n\n\n\n
  • HG54<\/li>\n\n\n\n
  • HG74 EOL<\/li>\n\n\n\n
  • HG75<\/li>\n\n\n\n
  • HG94<\/li>\n\n\n\n
  • HG95<\/li>\n<\/ul>\n\n\n