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My Nightmare

Old 12-15-05, 08:39 PM
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popluhv
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My Nightmare

Anyone ever have a chain break while riding in traffic? A bike mechanic told me it happens to every fixed rider. I am doubtful, I have never heard of it happening to anyone I know. I threw my chain in an busy intersection once, but slowed to safety with the heel-on-wheel technique.
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Old 12-15-05, 08:43 PM
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Yep, I actually broke my chain in traffic while sprinting... went over the bars. Not good. Almost got flattened by a cab.
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Old 12-15-05, 08:47 PM
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Happened to a good friend of mine a few years ago. In SF heading downhill on 16th from Bryant... he turned down one of those street by the aspca and road it out. That was on a used bike he'd just bought though, he didn't quite know how shot the chain was.
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Old 12-15-05, 08:53 PM
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the one time i blew a chain on instinct i grabbed the frame and rolled with it or something, i don't remember how it all went down, i remember it snapping and flying foward and then i remember talking to some guy on the sidewalk about how lucky i was, the bus behind me ran over the chain, that is to say the chain fell to the ground, i tucked and rolled with my bike, the bus didn't slow down and would have run me down, but i didn't really see it happen
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Old 12-15-05, 08:55 PM
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I did this about 4 months ago going downhill heading through a traffic light. Hit a uneven part of the pavement and it jarred my bike so hard it knocked the chain off. I was going way too fast to bail so luckily i was able to get onto the sidewalk then into some grass to slow me down. I bet I looked so ridiculous. But that is the scariest thing in the world.
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Old 12-15-05, 09:00 PM
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I'm not worried... I'm super paranoid about this happening, so I'm again religiously using the Connex Super Heavy Duty.
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Old 12-15-05, 09:08 PM
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this thread alarms me
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Old 12-15-05, 09:13 PM
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Yeah, I've had it happen. Spun a cog off too. You'd think I'd put a brake on or something, but luckily there haven't been any close calls...
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Old 12-15-05, 09:29 PM
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yeah I posted a thread on here awhile ago about it happeneing. I've had it happen twice, once was a exploded masterlink, the other was just a simple break.


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Old 12-15-05, 09:30 PM
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Maybe consider using a brake??!?!?!
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Old 12-15-05, 09:31 PM
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Your bike mechanic is full of it.

I know lots of people (myself included) who haven't had this experience. There are plenty of chains, 3/32" and 1/8", that are burly enough that for them this isn't even a realistic possibility.
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Old 12-15-05, 09:44 PM
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three times
every one of them going up an incline
flying dismount GOOOOO
it's what one gets for combining the power of three 30-year old chain segments with horrible chainline!

so far no issues with my rusty magna chain though ^^
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Old 12-15-05, 09:45 PM
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Huge-ass bmx chain in good condition - make it happen.
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Old 12-15-05, 09:51 PM
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From my experience as a wrench, I think chains are super-tough and can take massive amounts of stress applied in the correct direction. Properly maintained, they will never break during their service life (that is, they will stretch past the place where you should replace them before they will fail.) Lots of folks (including professional mechanics, sometimes) abuse chains and then ride them. The most common is to put a chain back together w/o the proper tools or preparations and drive a pin into one of the plates. Pressure in this direction can seriously weaken a link, and when you apply lots of force to it (like accelerating in traffic) it will come off. Inspect your chain for cracking around the pins and be super careful when driving pins and your chains will never fail you.
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Old 12-15-05, 10:05 PM
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twice. once when skidding to a stop, it just popped off, and I coasted. kind of strange to suddenly be caosting after a skid but I sensed it immediately and did not try to pedal. the chain did not get caught in the cog and I simply used the brake to stop. no problem. put it back on and retensioned, no further issues.

later I changed chainrings and needed new chain, used a cheap 3 speed chain and had the maste rlink come undone at 9th and sherman after at least 5 beers, I was going pretty fast (for me) over a really rough section of road, my foot almost came off the pedal and I almost came off the bike, but I recovered and then noticed I was coasting again. used the brake to stop at a traffic island where I dismounted and found the two pieces of the master link which conveniently waited until I stopped before they fell off.

yeah, so, I like the brake.




Originally Posted by popluhv
Anyone ever have a chain break while riding in traffic? A bike mechanic told me it happens to every fixed rider. I am doubtful, I have never heard of it happening to anyone I know. I threw my chain in an busy intersection once, but slowed to safety with the heel-on-wheel technique.
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Old 12-15-05, 10:05 PM
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Originally Posted by Rancid
yeah I posted a thread on here awhile ago about it happeneing. I've had it happen twice, once was a exploded masterlink, the other was just a simple break.
Do you recall the name of the thread? I tried a search before I posted, but did not find much.
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Old 12-15-05, 10:05 PM
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Never on a fixed gear, my geared bike several times. I've been riding fixed for 5 years now.
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Old 12-15-05, 10:16 PM
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Originally Posted by r-dub
... The most common is to put a chain back together w/o the proper tools or preparations and drive a pin into one of the plates. Pressure in this direction can seriously weaken a link, and when you apply lots of force to it (like accelerating in traffic) it will come off. Inspect your chain for cracking around the pins and be super careful when driving pins and your chains will never fail you.
I have always found chain repair to be miserable. Can you recomend any good techniques or websites? I used Sheldon's site to learn, but I have never confident with this. I feel less so now.
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Old 12-15-05, 11:08 PM
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Originally Posted by r-dub
From my experience as a wrench, I think chains are super-tough and can take massive amounts of stress applied in the correct direction. Properly maintained, they will never break during their service life (that is, they will stretch past the place where you should replace them before they will fail.) Lots of folks (including professional mechanics, sometimes) abuse chains and then ride them. The most common is to put a chain back together w/o the proper tools or preparations and drive a pin into one of the plates. Pressure in this direction can seriously weaken a link, and when you apply lots of force to it (like accelerating in traffic) it will come off. Inspect your chain for cracking around the pins and be super careful when driving pins and your chains will never fail you.
ive never had a chain break either. if you take care of it it's all good, i think the biggest problem with people's chains is faulty chainlines and having the chain put together bad (pin not all the way in). ive seen a lot of people not put the pin in right, i know a lot of people don't clean/lube they're chains too. this shouldn't be a fixie problem and if it is, get a brake.
 
Old 12-15-05, 11:28 PM
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i've never broken a chain, but i've spun a cog off once or twice and thats no fun, the last time i did it i ended up bending my skewer and breaking my axle in half, not to mention i lost a race and had to carry my bike home a mile.
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Old 12-15-05, 11:30 PM
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broke a chain once on a hard climb, cam eout of it ok.
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Old 12-15-05, 11:42 PM
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Originally Posted by metallo pesante
i've never broken a chain, but i've spun a cog off once or twice and thats no fun, the last time i did it i ended up bending my skewer and breaking my axle in half, not to mention i lost a race and had to carry my bike home a mile.
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Old 12-15-05, 11:47 PM
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greg goode's article on chains claims that a properly-assembled chain is all-but impossible to break, and the only reason chains fail is because of improper installation.

i have no empirical evidence to support his findings, but i believe his conclusion. maybe it's because i know how to put a chain together
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Old 12-15-05, 11:50 PM
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since a good number of people ride fixed gear due to the increased simplicity, I would guess that the majority take this for granted when it comes to maintenance (PLEASE prove me wrong! ). I would also dare to say that the average rider does not take the time to inspect his/her chain as regularly as one should who relies on a singular linked piece of equipment for applying power and decreasing power. I check my chain before each ride - knocking out grit and the like as well as seeing how it behaves as I freespin the rear wheel. Cleaning takes place al least once a month or so - depending on usage. I also change it once a year (mandatory retirement) or whenever it feels/looks or requires being changed. Since it is such an important piece of the track/fixed gear bike, it should be revered. Not forgotten.
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Old 12-15-05, 11:55 PM
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