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It's all ball bearings
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I posted this on the everything drivetrain drivetrain forum this morn- thought this would be a better spot, Im hoping some of you guys would have experience with this kinda dea- any help would be appreciated- Im heading to Ray's in Cleveland in a few weeks and really want to take this bike (less chain issues) with me- Thanks
gopriest31

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I just built up a 1x 8 set up on a bike I'll be using for mainly xc, urban, and jumping. First ride out it worked great, except for dumping the chain off the front ring (like chain suck, no granny gear!) after jumping. Im running it on the middle ring on an old LX crankset.

Im wondering if a jump stop type of chain guide deal in place of the now missing front derailleur is what I need to fix this, or if I need something more than that. Any suggestions?
 

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Meh.
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17,508 Posts
You can do a few things.

Easiest is a chainguide.

DMR makes a chain retention device, similar to a front derailleur, chain goes through it, it won't let it go anywhere. You can just use your front derailleur and dial in your limit screws until the derailleur sits right where you want it. And drop the height as close to the chainring as you can get it.
 

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Just Ride
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XSL_WiLL said:
You can do a few things.

Easiest is a chainguide.

DMR makes a chain retention device, similar to a front derailleur, chain goes through it, it won't let it go anywhere. You can just use your front derailleur and dial in your limit screws until the derailleur sits right where you want it. And drop the height as close to the chainring as you can get it.
nah, easiest you can do is shorten your chain like whoa. get it set up so your derailleur is nearly completely extended in the largest cog. then crank your b limit screw (the little screw on the very back of the derailleur, there i jsut one make sure you dont confuse it with your normal limit screws) all the way in
 

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user-created
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zerossix said:
nah, easiest you can do is shorten your chain like whoa. get it set up so your derailleur is nearly completely extended in the largest cog. then crank your b limit screw (the little screw on the very back of the derailleur, there i jsut one make sure you dont confuse it with your normal limit screws) all the way in
Uh, yeah, that's a great way to make your bike shift like crap, and still drop the chain. :rolleyes:

Double bashguards, rigged front derailler, or a chainguide. Take your pick.
 

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Meh.
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17,508 Posts
zerossix said:
nah, easiest you can do is shorten your chain like whoa. get it set up so your derailleur is nearly completely extended in the largest cog. then crank your b limit screw (the little screw on the very back of the derailleur, there i jsut one make sure you dont confuse it with your normal limit screws) all the way in
You still drop the chain with a way short chain. And it'll make it shift like sh!t too.
 
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