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I have an almost brand new Supercycle bike and for some reason, the chain keeps breaking on it. What could I be doing wrong

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    What model bike, and how are you riding it? On road or off? Aggressively or casual? Commented Apr 23, 2018 at 11:41
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    And have you actually put a new chain on or kept trying to put the damaged one back together?
    – Chris H
    Commented Apr 23, 2018 at 12:52
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    And is it one particular link that keeps breaking, or various links are breaking?
    – SSilk
    Commented Apr 23, 2018 at 18:53
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    After 24 hours without clarification of some important questions I don't think this can be answered. VTC but I'll retract if the missing information is added
    – Chris H
    Commented Apr 24, 2018 at 11:28

3 Answers 3

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You have a low quality bike. The low quality shows as failures in various parts, in your case the chain. An immediate solution would be to replace it (either chain or the entire bike) with a decent quality one. No need to go fancy and expensive, anything that is sold in a bike shop should do the job.

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SuperCycle is the housebrand of a range of extremely inexpensive bicycles sold by Canadian Tire, a discount warehouse store.

The retail price is Canadian $109 or so. To get to this price point, the cheapest possible parts, the absolute worst materials, and the minimalist of assembly attention is used.

supercycle

So basically you can expect things to break or be impossible to adjust to work properly. In bicycling parlance, we call these “ride once put away (ROPO)” bikes or Bicycle Shaped Objects ().

You could replace the chain with a better one but next week the brakes are likely to fail, or the wheel bearings. It’s very expensive to keep a BSO running and at some point (perhaps now) you’re better off trying to return it if you’re within the return policy and getting a good used bike from your local dealer.

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  • Reminds me of some YouTube videos, where people took BSOs for trail riding. Incredible fun to watch.
    – Vorac
    Commented May 30, 2018 at 8:20
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The cheapest and easier fix, is to replace the broken link with a 'quick link'. This way you shouldn't have to break the chain and weaken it.

The best fix is to get a new chain. Any cheap chain will do.

Over time chains tend to elongate, just a little. If the material is not tiptop then it will suffer some small fractures and corrosion will set on it. As it will corrode over time, said fractures will open more and stretch, on every single link on your chain. Even though it will look fine from afar.

When you break a link it is only the first warning to change an overdue chain.

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  • Could you elaborate why braking would weaken the chain? Also, do you have any source of information about the fractures?
    – ojs
    Commented Apr 23, 2018 at 16:11
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    @ojs sorry for my bad english, was a in breaking something.
    – dmb
    Commented Apr 23, 2018 at 16:13
  • This doesn't really fit with "almost brand new" though. I've worn chains beyond what's reasonable in the past (and I was heavy then as well as prone to pulling away hard in a high gear) but I've never snapped a chain. The snapped chain I helped fix recently was nearly new as well.
    – Chris H
    Commented Apr 23, 2018 at 16:21
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    Chain breaking is usually last indication that it needs to be replaced, not the first. Commented Apr 23, 2018 at 17:17
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    @dmb, or just use a $10 Park Took Chain Checker Commented Apr 23, 2018 at 20:15

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