So, recently i've bought a new chainring online and it will be sent to my home soon. And i thought to myself, should i get a chain guide? The chainring has narrow wide teeth so the chain will not fall off right? Some says the chain will still falls off even on a narrow wide chainring and some says it won't. Is it a good idea to get a chain guide?

closed as unclear what you're asking by David Richerby, Klaster_1, Grigory Rechistov, Argenti Apparatus, mattnz Mar 20 at 2:32

Please clarify your specific problem or add additional details to highlight exactly what you need. As it's currently written, it’s hard to tell exactly what you're asking. See the How to Ask page for help clarifying this question. If this question can be reworded to fit the rules in the help center, please edit the question.

  • Has your chain been falling off? In general, it shouldn't be doing that. Is your chain tensioned properly? See bicycles.stackexchange.com/questions/5173/… – Andrew Henle Mar 6 at 14:30
  • 3
    We know nothing about you or your riding. Unless the answer is "everyone needs a chain guide" or "chain guides are completely useless", we can't possibly answer your question. – David Richerby Mar 6 at 14:48
  • I had a bike with 1× setup, used it with both a chainring with narrow-wide teeth and with a chainring with regular teeth (not for geared setup). My derailleur was non-clutched. The regular chainring definitely required a guide all the time. The narrow-wide one didn't guarantee flawless chain retention ether, as I experienced maybe 5 chain drops with it in 2 years. Whether it is acceptable for you or not depends on your riding style and whether one can tolerate a possibility for chain drop. If you compete, you won't want even a slight possibility of a chain drop. – Grigory Rechistov Mar 6 at 16:17
  • And yes, I read in many places that a clutched rear derailleur helps with chain retention a lot, so it is not just a chainring – Grigory Rechistov Mar 6 at 16:18

Whether you need a chain guide depends on your bike, what riding you are doing and several other factors, so it’s impossible to answer definitively.

If you still have chain issues either the narrow-wide chainring, add a chain guide.

Not the answer you're looking for? Browse other questions tagged or ask your own question.