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how hard is it to get your chain out if you dropped it even with a chain catcher?

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how hard is it to get your chain out if you dropped it even with a chain catcher?

Old 05-07-13, 10:23 PM
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tahoeeddie
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how hard is it to get your chain out if you dropped it even with a chain catcher?

I started a thread earlier asking opinions about chain catchers, and it sparked a great conversation. As a result, I bought one. I haven't installed it yet. But I have heard from people that even if you have a chain catcher, it is still possible to drop the chain underneath the catcher.
I was wondering if anyone has ever experienced this on a ride, and how difficult was it to get the chain back out?

It seems like it could be a real bear if the chain somehow managed to slip underneath the chain catcher.

Thanks.
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Old 05-07-13, 10:31 PM
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It should be almost touching the chain so it shouldn't be an issue. i have the dog fang style (not my pic)

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Old 05-07-13, 10:35 PM
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Ah, I bought a k-edge. i've heard that the setting can slip over time though. I have a braze-on FD. So the chain catcher will be mounted on that.
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Old 05-07-13, 10:48 PM
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haven't used those so i'm not sure which way it would slip.. might be worth giving it a tightening once in a while to check on it.
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Old 05-07-13, 10:50 PM
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Check the limiting screws so it can't do that, but those devices are practical.
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Old 05-07-13, 11:07 PM
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If your catcher is installed and adjusted correctly, you can't drop it with a catcher. However! If you get a chain wrap, then you can have a real mess, even worse than without the catcher, because the catcher gets involved in it, too. IME what causes chain wrap is chain ring burrs. It works best to be good about chain ring maintenance and changing them out when they get beat up. We had to go to a SS granny ring on our tandem as aluminum was just too soft to hold up to power from two people.
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Old 05-08-13, 04:43 AM
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Set it up as close as possible and you should never drop a chain
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Old 05-08-13, 04:46 AM
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Just thinking about chain drop makes me shudder.
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Old 05-08-13, 06:56 AM
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PIA for sure. Is chaindrop are symptom of a deraullier needing adjustment? I had it a couple of times with the CAAD when going to the small ring, but haven't had it since adjusting FD and cable tension.

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Old 05-08-13, 07:02 AM
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Its not necessarily a matter of bad adjustment. In the right conditions, it can happen. If there was enough gap to drop a chain with a chain-catcher, I would expect that there is enough gap to get the chain back up. Worst case, you might need to get out an allen key and loosen the chain catcher so you can move it out of the way enough to get the chain out. I wouldn't let this be a factor is deciding to get a chain catcher or not. I haven't dropped a chain since I installed one over a year ago.
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Old 05-08-13, 07:09 AM
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One time I broke my chain and quickly put a link on it. Once I did I realized that like a moron the chain was behind the chain catcher. I had to remove the link and re-install it. No way I was going to get it on the chainring without doing it that way.
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Old 05-08-13, 07:15 AM
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I doubt I'll ever bother with a catcher.
9 out of 10 times I can get my chain back on without stopping. I keep pedaling and work the shifter.
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Old 05-08-13, 07:26 AM
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Originally Posted by Ferrous Bueller View Post
I doubt I'll ever bother with a catcher.
9 out of 10 times I can get my chain back on without stopping. I keep pedaling and work the shifter.
That usually worked on my Shimano bikes, but every time I dropped a chain on my Campy bike, that trick wouldn't work. The chain would just drop and sit there. The slow-pedal wouldn't move the chain at all.
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Old 05-08-13, 07:36 AM
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Originally Posted by Ferrous Bueller View Post
I doubt I'll ever bother with a catcher.
9 out of 10 times I can get my chain back on without stopping. I keep pedaling and work the shifter.
I'm not as worried about getting my chain back on as I am about damaging the frame. With that said, using di2 I see no need for a chain catcher.
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Old 05-08-13, 09:20 AM
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Originally Posted by pallen View Post
That usually worked on my Shimano bikes, but every time I dropped a chain on my Campy bike, that trick wouldn't work. The chain would just drop and sit there. The slow-pedal wouldn't move the chain at all.
+1 on not being able to pick up a chain on a Campy bike. Not sure why. It's not like I don't know how to shift etc and it works fine with an all Shimano drivetrain. I even used a Shimano front derailleur for a while, no dice, and I use a Shimano chain now, ditto. I use various chainrings as well (FSA, Campy, Shimano).

I bought a K-edge guard and immediately dropped the chain. I think it needs to be braced at the bottom, i.e. some kind of screw to hold it in place so it doesn't flex/move inward.

I use a chain guard so I can intentionally adjust my front derailleur to overshift going into the small ring. Since only spring pressure works to move the derailleur down to the small ring I want to give it all the help I can give it. This is only a factor when I need to shift down while under a great deal of pressure.

I use the N-Gear Jumpstop. I adjust my front derailleur with that to overshift about 3-4 mm, i.e. the derailleur moves too far. This helps the derailleur move the chain under pressure. The chain drops onto the N-Gear and then onto the chainring. The metal cage of the Jumpstop is far superior to the plastic of the Fang/similar and allows me to adjust the front derailleur "incorrectly" on purpose.

A picture on my blog, taken from the N-Gear site. Shows how it sits very clearly.


I had a Dog Fang and it shredded in a couple rides, wore through the plastic up top.
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Old 05-08-13, 09:48 AM
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Only time I had my chain get behind the K-edge catcher was when the chain had fallen off the bottom of the small ring when handling the bike, I didn't notice it, and the crank got rotated backward. It is a pain to deal with at that point.
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Old 05-08-13, 09:54 AM
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I also use the N-gear. Good equipment. Chain suck a bummer as noted above.
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Old 05-08-13, 11:42 AM
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Originally Posted by carpediemracing View Post
+1 on not being able to pick up a chain on a Campy bike. Not sure why. It's not like I don't know how to shift etc and it works fine with an all Shimano drivetrain. I even used a Shimano front derailleur for a while, no dice, and I use a Shimano chain now, ditto. I use various chainrings as well (FSA, Campy, Shimano).

I bought a K-edge guard and immediately dropped the chain. I think it needs to be braced at the bottom, i.e. some kind of screw to hold it in place so it doesn't flex/move inward.

I use a chain guard so I can intentionally adjust my front derailleur to overshift going into the small ring. Since only spring pressure works to move the derailleur down to the small ring I want to give it all the help I can give it. This is only a factor when I need to shift down while under a great deal of pressure.

I use the N-Gear Jumpstop. I adjust my front derailleur with that to overshift about 3-4 mm, i.e. the derailleur moves too far. This helps the derailleur move the chain under pressure. The chain drops onto the N-Gear and then onto the chainring. The metal cage of the Jumpstop is far superior to the plastic of the Fang/similar and allows me to adjust the front derailleur "incorrectly" on purpose.

A picture on my blog, taken from the N-Gear site. Shows how it sits very clearly.


I had a Dog Fang and it shredded in a couple rides, wore through the plastic up top.
Wow! Did you set up the Dog Fang properly? I imagine if you set it up like you did your N-Gear Jumpstop (ie the overshifting that then use the Jumpstop to push the chain back onto the chainring), then the issue of shredding can arise. I set up my Dog Fang on two bikes (2mm from the chainring) without even markings on the Dog Fangs.

Sure, a chainwatcher made with steel probably means a better peace of mind. I have dropped a chain (pre Dog Fangs) exactly once in my life, and that was user error trying to downshift while going uphill on a mountain bike on uneven topography. Dropping chain is not very common on well-adjusted road bikes, but the peace of mind was the issue for me. Why shred a carbon frame when a $10 contraption can prevent all that heartache?
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Old 05-08-13, 01:43 PM
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I've seldom had a problem in this area but when it has happened I was able to slowly pedal while shifting to get the chain back on the ring. It may not always be caused by a misaligned front der but can happen when shifting from the big to small ring while the chain is under a heavy load...climbing in the big ring and trying to shift to the small ring under load and pop goes the chain.
If the chain is sitting on the bb shell it is fairly easy to shift it back on the ring but if it has fallen onto the bb axle you usually have to stop and manually put it back on the ring unless you are very lucky.

I've never used a catcher to no input on those.
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Old 05-08-13, 01:51 PM
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Trying to figure out the proper size n-gear for a supersix. Any help?
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Old 05-08-13, 01:52 PM
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Originally Posted by LowCel View Post
I'm not as worried about getting my chain back on as I am about damaging the frame. With that said, using di2 I see no need for a chain catcher.
Ionno, I've seen Pro Peleton bikes w/ Di2 and a chain catcher.
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Old 05-08-13, 02:10 PM
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Originally Posted by Jed19 View Post
Wow! Did you set up the Dog Fang properly? I imagine if you set it up like you did your N-Gear Jumpstop (ie the overshifting that then use the Jumpstop to push the chain back onto the chainring), then the issue of shredding can arise.
Yes I did. Mind you this was a while ago, before ramps on chainrings were commonly available. Back then I really had to drop the chain hard. I manually filed off teeth off the big ring in order to make my own ramps. Etc.

For N-Gear on SuperSix, no idea. The tube has to be round though, and it's really tight when it's right. I don't know the SuperSix frame.
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Old 05-08-13, 02:42 PM
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Originally Posted by FPSDavid View Post
Ionno, I've seen Pro Peleton bikes w/ Di2 and a chain catcher.
They need to find a new shop with a decent mechanic.
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Old 05-08-13, 02:50 PM
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Two words: Andy Schleck

He was running a chain catcher...
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Old 05-08-13, 04:00 PM
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Originally Posted by robabeatle View Post
Trying to figure out the proper size n-gear for a supersix. Any help?
If your Supersix' seat tube is round, and if you are adamant on the N-Gear, then do this. Measure the circumference of your seat tube (tie a small rope or paper strip around it), convert to mm, divide by Pi (3.14), and that should give you the clamp size of the N-Gear you want.

Last edited by Jed19; 05-08-13 at 04:03 PM.
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