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Chain falls off autobike classic

As long as I pedal, everything works fine. As soon as I try to 'coast', the chain continues forward to the front sprocket where the chain is thrown off. This is due to the front sprocket is supposed to continue passing on the chain even though pedaling has stopped. This occurs on my 1998(?) AutoBike 'classic' made by CSA.

Posted by Anonymous on

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Posted on Jan 02, 2017

  • 1 Answer

SOURCE: Looking for CSA Autobike instruction manual

I can supply a Xerox of the manual, SaturnSL21992@Hotmail.com

Posted on Apr 02, 2009

carlsbiz
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SOURCE: CSA Autobike Parts

You might find something here ---

http://www.bikemagic.com/links/links2.asp?Cat=151

Posted on Jul 08, 2009

dunnbiker
  • 8546 Answers

SOURCE: When trying to pedal the

You, as the only one of us who can see the bike, need to focus on what is or is not happening to define the problem better. Chains engage gears. If not, maybe the chain fell off. Try web searching "chain fell off" or "chain fell off autobike classic" or any common simple symptom to get a feel for the various reasons it happens.

Posted on Aug 10, 2011

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I have a autobike classic. I here a clicking when I peddle as if the chain not engaging when it shifts. Derailed seems off centerd? What to do?


The cable adjuster for the D?railleur is not correctly set.
Download the adjustment instructions from the manufacturers website.

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When trying to pedal the bike, the sprocket does not engage, rather the pedals just go around without resistance, or engaging the chain. Everything else seems okay. It has been hanging upside down in my...


You, as the only one of us who can see the bike, need to focus on what is or is not happening to define the problem better. Chains engage gears. If not, maybe the chain fell off. Try web searching "chain fell off" or "chain fell off autobike classic" or any common simple symptom to get a feel for the various reasons it happens.

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1 Answer

My new moongoose mischief keeps getting loose chain and pedals, ive tightend it up sevral times but keeps doing it, and the pedals keep loosening from the body??? anyone know how to solve this/


My first thought about the chain continuuin to become loose, is that you need to loosen the nuts on the back wheel, and pull the wheel (while the chain is still attached to bot hsprockets) in order to remove any slack. If it's a continuous issue, chances are that back tire keeps migrating forward because those nuts aren't tight enough.

To the pedal issue-If the pedals are wobbling or vibrating because the aren't snug while on the pedal bar (the bar that the pedals revolve around) it is probably because the peddals are too large. Try buying a new set of pedals. If they are loose and trying to slip off of the pedal bar and if you have tightened the nuts that keep the pedal on the pedal bar and they are continuing to become loose, it could be that you need to use locking nuts.

A quick fix to solving loose pedals is to add washers to the end of the bar until the washers are flush up against the pedal and the nut.

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I have a TREK mountain bike with a Shimano combination brake and shifter with an Altus derailleur. It shifts all gears fine but when coasting with my feet on the pedals, the chain goes slack and sags...


Only YOU can evaluate any error you may have made. LOOK at why the chain is slack. Does the rear derailleur pull back to take up the slack? Are you using some ridiculous small chainring, small rear cog combination that allows too much chain to go slack?

Perhaps the freewheel isn't freewheeling and is instead feeding chain forward when you stop pedaling. Walk the bike forward and see if the rear cogs just coast. If not, lube time (internal). take it to a Bike Shop or buy all the special tools and DIY.

http://www.parktool.com/blog/repair-help/categories/derailleur-systems

http://www.parktool.com/blog/repair-help/categories/cassette-and-freewheel-service




Mar 22, 2011 | Cycling

1 Answer

When pedaling tension is fine, when i stop pedaling the gear changer on the back folds forward and the chain slips loose, how do i fix that


Do you mean the rear derailleur?


It almost sounds like rear wheel isn't 'freewheeling' properly. The gears on the rear wheel should be able to remain motionless (with the pedals) when you coast. Does it do the same thing if you just walk the bike or does it make the pedals rotate as you go? If that is the case you could seriously damage the derailleur if it isn't resolved.

Catastrophic lack of lube in it hub or freewheel body will make it seem to be in a fixed relationship with the wheel. A bike shop would have the proper expertise and tools to lube it properly.

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Have a mongoose with single rear derailleur - how does the shift work?


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1 Answer

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sounds like sand got into the chain, try spraying wd-40 well onto the chain then wiping the exccess

Jun 20, 2009 | Cycling

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