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Old 12-04-2021, 05:54 PM   #18101
bcblues
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Yeah, by money is on a bent hanger. Doesn't take much, and the symptoms are just as you describe.
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Old 12-04-2021, 07:45 PM   #18102
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Quote:
Originally Posted by SoobZero View Post
After a week of fiddling with it, I have given up trying to adjust my new rear mech. No matter what I did I just couldn't dial the shifting in. Called LBS to bring it in and explained my issue. The mechanic offered to let me hang and teach me how to do it. They have barstools in front of the bays for spectators.

I think its cable tension issue. Would shift ok in the high gears and then jump in the lowers. Barrel adjuster would make it shift ok in the low gears and then jump in the high or middle of the range. Before you say its a bent hanger, it's not. I put a brand new one on.

There must be a "one weird trick" that I don't know to get it right.
Was the old hangar bent?
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Old 12-04-2021, 11:04 PM   #18103
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Double
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Old 12-04-2021, 11:05 PM   #18104
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CycloSpirit Derailleur Hanger Alignment Gauge https://www.amazon.com/dp/B077SZBZKY...ing=UTF8&psc=1

It's not so much that the hanger is not straight, as much as just aligning the drivetrain. IMO anyways.

Does that make sense?
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Old 12-05-2021, 12:28 PM   #18105
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Originally Posted by GrundleJuice View Post
Was the old hangar bent?
I really don’t think so. After taking it off and laying it flat, there was no play. I replaced it anyway to eliminate that possibility. Will be a good back up I guess.

The rest of the drivetrain is new aside from the chain, chain ring and shifter. SRAM GX derailleur and GX cassette both 11-speed (non-eagle) and should be compatible with other NX stuff I already had. Dropped a link in the chain as the GX cassette has one less tooth in highest gear.
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Old 12-05-2021, 01:21 PM   #18106
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Quote:
Originally Posted by Badler View Post
CycloSpirit Derailleur Hanger Alignment Gauge https://www.amazon.com/dp/B077SZBZKY...ing=UTF8&psc=1

It's not so much that the hanger is not straight, as much as just aligning the drivetrain. IMO anyways.

Does that make sense?
Looks exactly like the Park Tool one I have.
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Old 12-05-2021, 02:14 PM   #18107
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Originally Posted by SoobZero View Post
I really don’t think so. After taking it off and laying it flat, there was no play. I replaced it anyway to eliminate that possibility. Will be a good back up I guess.

The rest of the drivetrain is new aside from the chain, chain ring and shifter. SRAM GX derailleur and GX cassette both 11-speed (non-eagle) and should be compatible with other NX stuff I already had. Dropped a link in the chain as the GX cassette has one less tooth in highest gear.
That's some evidence to support the derail being bent.

I've nursed beat up derails along by playing with the b tension screw and increasing the distance between the upper pulley wheel and cassette to give the chain more room for error, however it has side effects like slow shifting and occasionally having to over shift a touch to downshift a gear. Not sure how SRAM 11spd would react to that.
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Old 12-05-2021, 04:45 PM   #18108
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I know that Eagle stuff is really touchy about derailleur alignment (and just about everything else in the setup).

I had trouble tuning my xo setup. I was on the road and took it into a shop, where they diagnosed a bent derailleur hanger. They straightened it. Ran fine after that. I ordered a new hanger and straightened it before I put it into my toolbox. Yes, it was off a fraction. But that fraction is enough to cause plenty of frustration. Now I know I can just replace the hanger and be GTG.
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Old 12-05-2021, 05:25 PM   #18109
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Quote:
Originally Posted by bcblues View Post
I know that Eagle stuff is really touchy about derailleur alignment (and just about everything else in the setup).

I had trouble tuning my xo setup. I was on the road and took it into a shop, where they diagnosed a bent derailleur hanger. They straightened it. Ran fine after that. I ordered a new hanger and straightened it before I put it into my toolbox. Yes, it was off a fraction. But that fraction is enough to cause plenty of frustration. Now I know I can just replace the hanger and be GTG.
Frames aren't always absolutely straight either.
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Old 12-06-2021, 01:03 AM   #18110
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Frames aren't always absolutely straight either.
When you said this, it finally clicked. I’m almost certain it’s a bent frame or at least a bent rear triangle.

My drivetrain was having shifting issues after my fall (mis-shifting, dropping gears when pedaling backwards, etc.). This is what drove me to start replacing the cheap things like the derailleur and hanger when troubleshooting. The same issues are present with the new parts that existed with the old. The impact hit that side of the bike and it would make sense why I can’t dial this **** in.

I’ll know more on Tuesday and report back.
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Old 12-06-2021, 02:43 PM   #18111
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I tried the "string test" by tying a piece of string to the rear axle hole on one side, running it around the headtube, and tying it to the opposite side axle hole. Then measured the distance from the string to the seat tube on either side. It's out of alignment by over 1/4".

This seems like the culprit. I'll confirm when I take it in tomorrow. Might be time to test that Santa Cruz warranty/customer service. No-fault replacement at least.
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Old 12-06-2021, 04:05 PM   #18112
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Quote:
Originally Posted by SoobZero View Post
I tried the "string test" by tying a piece of string to the rear axle hole on one side, running it around the headtube, and tying it to the opposite side axle hole. Then measured the distance from the string to the seat tube on either side. It's out of alignment by over 1/4".

This seems like the culprit. I'll confirm when I take it in tomorrow. Might be time to test that Santa Cruz warranty/customer service. No-fault replacement at least.
Get ready for a new rear triangle, in whatever color they have laying around.
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Old 12-07-2021, 03:26 PM   #18113
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Verdict is in and..LBS says it is a "twisted" derailleur. How I don't know. The derailleur itself looks like-new but the tech believes that that's why the dude on Pinkbike was selling it. They tried to bend the jockey cage to get it back in alignment but ultimately couldn't get it right. I dunno. If you eyeball it looks straight but I guess its twisted or something. They tested the hanger and it was perfectly straight. Frame inspection also didn't lead them to think the frame was bent.

Brand new 1x11 GX is on the way for now. Cheap solution hopefully.

They complimented my wheel build.
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Old 12-07-2021, 04:56 PM   #18114
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Quote:
Originally Posted by SoobZero View Post
Verdict is in and..LBS says it is a "twisted" derailleur. How I don't know. The derailleur itself looks like-new but the tech believes that that's why the dude on Pinkbike was selling it. They tried to bend the jockey cage to get it back in alignment but ultimately couldn't get it right. I dunno. If you eyeball it looks straight but I guess its twisted or something. They tested the hanger and it was perfectly straight. Frame inspection also didn't lead them to think the frame was bent.

Brand new 1x11 GX is on the way for now. Cheap solution hopefully.

They complimented my wheel build.
Sucks, but not that uncommon. I twisted an XT cage, ordered a replacement, and tweaked the twisted enough so I could ride while I waited for the new one. Out of pure luck I was able to get it perfect and it shifted better than before it was bent! Now I have a new XT 12spd derail in a box. The more speeds they cram in and the more extravagant the shifting features on the chains/cogs get, the more sensitive they are to minor adjustment it seems. Any little tweak can't be tolerated.

My Mukluk came with Microshift Advent X, and I complained here about it being ****. Well, I am proclaiming that it is not as ****ty as I originally thought and that the bike builder just did not bother to fine tune the setup. After removing the cable from the derail, properly adjusting the limits (the shifter has its own, non adjustable low limit it seems) and then re-adjusting the cable tension it shifts quite well. The clutch is still inferior to the Shimano and Sram friction only design, but when cranked down on the clutch pivot, it works well enough most of the time. A coarse toothed pawl type clutch is just not a good idea to limit movement all of the time.
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Old 12-07-2021, 07:00 PM   #18115
bcblues
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Quote:
Originally Posted by SoobZero View Post
Verdict is in and..LBS says it is a "twisted" derailleur. How I don't know. The derailleur itself looks like-new but the tech believes that that's why the dude on Pinkbike was selling it. They tried to bend the jockey cage to get it back in alignment but ultimately couldn't get it right. I dunno. If you eyeball it looks straight but I guess its twisted or something. They tested the hanger and it was perfectly straight. Frame inspection also didn't lead them to think the frame was bent.

Brand new 1x11 GX is on the way for now. Cheap solution hopefully.

They complimented my wheel build.
Wow! Hopefully that fixes it. Not as cheap as a new hanger, but not too bad.
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Old 12-09-2021, 03:42 PM   #18116
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This was probably my last ride of the season. Most stream crossings (on Mountain Lion) were iced over. Only maybe a 20' section of ice on the actual trail, though, on the section that usually has a bit of running water.







New tire day, too.
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Old 12-09-2021, 04:45 PM   #18117
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get a fattie and some studs
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Old 12-09-2021, 04:52 PM   #18118
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get a fattie and some studs
y tho

is ski season!
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Old 12-09-2021, 05:45 PM   #18119
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y tho

is ski season!
Because fun?
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Old 12-09-2021, 07:28 PM   #18120
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Did Maxxis change the logo on their tires?

We finally got some ran the last couple of days. Gonna go for a quick spin in the am if the park is open.
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Old 12-09-2021, 08:35 PM   #18121
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Did Maxxis change the logo on their tires?

We finally got some ran the last couple of days. Gonna go for a quick spin in the am if the park is open.


It’s a throwback design they have going now.
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Old 12-09-2021, 09:02 PM   #18122
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Ah. 10-4.
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Old 12-10-2021, 02:40 AM   #18123
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Wow! Hopefully that fixes it. Not as cheap as a new hanger, but not too bad.
Threw the new derailleur on and it appears to have fixed it. Shifting is much smoother and it's not skipping gears or binding unevenly. Such a relief.

I did notice that when in the lowest gear and I pedal backwards, the chain drops several gears and binds up. From what I'm reading this is normal but I've never experienced this on trail. Does this happen to anyone else's 1x? Never thought about how much I pedal backwards even just to position my feet.
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Old 12-10-2021, 06:04 AM   #18124
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Originally Posted by SoobZero View Post
Threw the new derailleur on and it appears to have fixed it. Shifting is much smoother and it's not skipping gears or binding unevenly. Such a relief.

I did notice that when in the lowest gear and I pedal backwards, the chain drops several gears and binds up. From what I'm reading this is normal but I've never experienced this on trail. Does this happen to anyone else's 1x? Never thought about how much I pedal backwards even just to position my feet.
Happens to me but only if I spin backwards several revolutions rapidly. Changing foot position doesn't upset the chain.

Is the replacement a different model than the original? Clutch tight enough?
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Old 12-10-2021, 11:28 AM   #18125
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Threw the new derailleur on and it appears to have fixed it. Shifting is much smoother and it's not skipping gears or binding unevenly. Such a relief.



I did notice that when in the lowest gear and I pedal backwards, the chain drops several gears and binds up. From what I'm reading this is normal but I've never experienced this on trail. Does this happen to anyone else's 1x? Never thought about how much I pedal backwards even just to position my feet.


This happens to me however it seems to be more frequent if the chain is on the hair shorter side.
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