Chain keeps snapping

[nuggetbikeowner174]

I bought my bike 7 months ago for 100 dollars prebuilt, the reason the price was so low was because the people needed the space and the engine wouldn’t start and just needed it gone. So i bought a new motor for it, new back wheel and tire since the one already on it had some issues and would have been 150 to fix at a bike shop and i tried to fix it but couldn’t, hub mounted sprocket, new chain, and i aligned everything to the best of my ability and still the chain pops off and breaks. I really love riding it when it runs, but i’m getting closer to just selling.

 

[Sidewinder Jerry]

It's hard to see any alignment issues since there's no chain on it. Though I do see several accidents waiting to happen, rear coaster only brake; front fender. Get rid of the coaster brake and install front/rear rim brakes. Totally remove the front fender.

Check your wheels for trueness.

 

[Gordy]

It's hard to see any alignment issues since there's no chain on it. Though I do see several accidents waiting to happen, rear coaster only brake; front fender. Get rid of the coaster brake and install front/rear rim brakes. Totally remove the front fender.

Check your wheels for trueness.

Yup. Remove that brake and swap for rim brakes (it's not that expensive!) and pull those fenders off. Not just the front. The rear can and will come off too and destroy your bike.

 

[nuggetbikeowner174]

It's hard to see any alignment issues since there's no chain on it. Though I do see several accidents waiting to happen, rear coaster only brake; front fender. Get rid of the coaster brake and install front/rear rim brakes. Totally remove the front fender.

Check your wheels for trueness.

i’ve checked wheel trueness, there’s no wobble or any play in the wheel, and none of the spokes are loose so it wouldn’t be that, i don’t have a chain right now for it because i made the post right after the bike destroyed the one i had just bought, and the new one that i ordered which is a wider gap between the pieces that hold it together, a 410 chain instead of the 415 which hopefully will help.

 

[ImpulseRocket]

I have run 415H chains on all of my bikes. I am a big man that likes to mildly hot rod my engines. I have never snapped a chain. Make sure to buy a quality chain, and make sure to not over tension the chain slack.

 

[nuggetbikeowner174]

I have run 415H chains on all of my bikes. I am a big man that likes to mildly hot rod my engines. I have never snapped a chain. Make sure to buy a quality chain, and make sure to not over tension the chain slack.

do you have any recommendations on ones to buy all the ones i’ve bought have been pieces of crap, that’s the only other thing i can think to do that i haven’t done already, but they had 4-5 star reviews on amazon so i assumed they’d at least work for a little bit, but when the chain slips off, i’ve noticed that some of the pins holding the chain together started to separate, so it seems like every time the chain slips off it gets more and more destroyed, i’m not sure if this is a chain issue or tension/allignment issue but before riding i make sure that everything’s still alligned, and it still breaks so buying a high quality chain is definitely gonna be my next move, i’m just not sure what the best choice is.

 

[robe]

You must have a bad batch or something. Never had an issue yet even with cheap regular 415 chains.

Operator issue? I don't know.

 

[nuggetbikeowner174]

You must have a bad batch or something. Never had an issue yet even with cheap regular 415 chains.

Operator issue? I don't know.

most likely a combination of both, the new heavy duty chain i ordered should fix the issues i’ve been having, and before installing i’m gonna take off the rear wheel and hub bracket and just completely re do the alignment, and in doing so will hopefully find the crux of my problem, i ended up settling for a #41 chain from PGN, which i looked up and they seem to be a legit manufacturer and not some crappy reseller, so when it comes tomorrow i’ll send more pics/videos of it hopefully working smoothly.

 

[nuggetbikeowner174]

chain i bought

 

[Chainlube]

most likely a combination of both, the new heavy duty chain i ordered should fix the issues i’ve been having, and before installing i’m gonna take off the rear wheel and hub bracket and just completely re do the alignment, and in doing so will hopefully find the crux of my problem, i ended up settling for a #41 chain from PGN, which i looked up and they seem to be a legit manufacturer and not some crappy reseller, so when it comes tomorrow i’ll send more pics/videos of it hopefully working smoothly.

In the mean time, lift your bike by the seat and give your rear wheel a spin. Watch the sprocket for wobble, if it wobbles more than a 1/16" it needs to be adjusted.