Big/Big +2 full links exception?
#1
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Big/Big +2 full links exception?
This is what my derailleur looks like on my 1x9 drivetrain after sizing the chain using the big/big +2 full links.
I actually went 2.5 links to account for the quick link.
The derailleur looks too stretched out compared to my 1x12 bike
i can post pics of my other bike if you want
I actually went 2.5 links to account for the quick link.
The derailleur looks too stretched out compared to my 1x12 bike
i can post pics of my other bike if you want
#2
Really Old Senior Member
Look up the chain wrap capacity for your RDER.
How many teeth difference between smallest & largest cog?
When you have an 11-stupid size cassette, you have a lot of chain to take up.
How many teeth difference between smallest & largest cog?
When you have an 11-stupid size cassette, you have a lot of chain to take up.
#3
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24 tooth difference (12-36t, 9 speed, not too radical at all) max wrap capacity for RD M592 is 45, well within specs
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Well within spec when set up properly. Post a photo in the big cog.
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You are on the small cog. I would expect to see the derailleur cage about 45 degrees back from what I see. Can you really shift up to the big cog and still have two links to spare? (I trust you are on 1X or are on the largest chainring if double or triple.)
#6
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You could shorten an inch although no real reason to do so.
Comparing to your 1X12 would require the same kind of info.
RDER mounting geometry may not be exact between the 2 either. One of the reasons Shimano tends to be conservative in their spec's.
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#7
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Spec's that would have been useful if included in your 1st post.
You could shorten an inch although no real reason to do so.
Comparing to your 1X12 would require the same kind of info.
RDER mounting geometry may not be exact between the 2 either. One of the reasons Shimano tends to be conservative in their spec's.
You could shorten an inch although no real reason to do so.
Comparing to your 1X12 would require the same kind of info.
RDER mounting geometry may not be exact between the 2 either. One of the reasons Shimano tends to be conservative in their spec's.
#8
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i sized by wrapping the chain around the big cog and adding 2.5 links. Gonna add back some links until it looks right, then order a new chain so I don’t kill myself lol!
#9
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Update
Guys I am sorry I am a moron. I just realized I counted backward. I should be able to add back 4 links and be ok.
i have set up several drivetrains and thought I was going nuts.
my daughter was talking my ear off while I was working on it. Serves me right.
i have set up several drivetrains and thought I was going nuts.
my daughter was talking my ear off while I was working on it. Serves me right.
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fwiw i prefer the small/small sizing approach...but I haven't used it with a 1x set up. I have used it with a vinatage set up 53/39 12-28 and a modern set up 50/34 11--32
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#11
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I prefer to use the term "link sets", since it takes 2 to tango so to speak.
A set is 1".
So, either way, you should have enough "slack".
Are you sure the Low Limit (L) screw doesn't need to be backed out a bit?
I noticed this when looking for your RDER-
"The Deore RD-M592 rear derailleur features Shadow technology which uses a lower profile, making snags on rocks, branches, or other trail debris less of a ..."
Last edited by Bill Kapaun; 09-05-20 at 08:10 PM.
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#12
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I'll assume you had the chain on the largest cog AND the chain ring at the same time.
I prefer to use the term "link sets", since it takes 2 to tango so to speak.
A set is 1".
So, either way, you should have enough "slack".
Are you sure the Low Limit (L) screw doesn't need to be backed out a bit?
I noticed this when looking for your RDER-
"The Deore RD-M592 rear derailleur features Shadow technology which uses a lower profile, making snags on rocks, branches, or other trail debris less of a ..."
I prefer to use the term "link sets", since it takes 2 to tango so to speak.
A set is 1".
So, either way, you should have enough "slack".
Are you sure the Low Limit (L) screw doesn't need to be backed out a bit?
I noticed this when looking for your RDER-
"The Deore RD-M592 rear derailleur features Shadow technology which uses a lower profile, making snags on rocks, branches, or other trail debris less of a ..."
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If the derailleur is within it's total capacity you're always safe going small/small and having just enough tension so the chain doesn't rub on the pulley cage or itself.
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#14
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In any case, if you ADD links, DO NOT use the old connecting pin.
Use quick links or a proper replacement pin.
I forgot once and turned a perfectly good RDER into a pretzel when the chain parted.
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thanks, I know, my plan is to re-rivet, check for correct length, and order a new 9 speed chain that is not re-riveted.
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I replaced the bearings on some Campy cranks with a 9 month old occupying my attention. The bike seemed to surge on me when pedaling for a couple weeks after that. I finally discovered that I hadn't mounted the cranks 180 from each other.
Kids are great but not always the best mechanic helpers.
#18
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It still doesn't hurt to have a spare chain.
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The small-small idea works great for full suspension bikes because you can do it with the suspension at full extension rather than taking the air out, and it leaves you with enough links to do the full rated capacity of the RD. If you are trying to get more than the full rated capacity with a triple you might be slack in small-small and it’s not so great.
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#20
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however, RadomBikeParts.com has 9 speed
FSA brand chains for less than $9 with discount code. Delivered.
Now if it were my $40 12 speed chain, that’s a different story but for $9 Ill start over and size a new chain. 😉
#21
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So I can't blame you.
I replaced the bearings on some Campy cranks with a 9 month old occupying my attention. The bike seemed to surge on me when pedaling for a couple weeks after that. I finally discovered that I hadn't mounted the cranks 180 from each other.
Kids are great but not always the best mechanic helpers.
I replaced the bearings on some Campy cranks with a 9 month old occupying my attention. The bike seemed to surge on me when pedaling for a couple weeks after that. I finally discovered that I hadn't mounted the cranks 180 from each other.
Kids are great but not always the best mechanic helpers.
I feel bad too. I have been working from home since March. My youngest daughter is like my shadow, but she knows I am off limits all week. She can see me, but knows not to talk to me. It’s almost harder for her than me being in the office all day. On the weekends we get to catch up 😊
not a bad deal if it only cost me a $9 chain.
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Update II
Here it is after adding the proper number of links back (or linksets, since this is not 1/2 link chain 😉
When my new chain comes I may cut it even longer by a link or 2
When my new chain comes I may cut it even longer by a link or 2
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What does it look like in the big cog?
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If you are indeed 'far' from horizontal then you're ok. I still think you could go longer and it would make things smoother on the larger cogs. It really doesn't matter what it looks like in the small cog as long as you have some tension on the chain. This (the large cog) is the important thing to see.