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Discussion Starter · #1 ·
First off let me state I LOVE MY SHADOW plus!
It is awesome, it combined with my chain guide removes all chain slap. Not a single noise escapes the combo.

But, yesterday while riding I noticed some chain noise from the rear and stopped to make sure the clutch was engaged. It was so I figured I was just riding extra badazz that day (ya right).

Today I was checking over the bike making sure everything is tip-top for a trip to Santos tomorrow. I checked the tension on the der and found that engaged or disengaged the tension was the same. So I figured I should adjust the clutch in the der and which should stop the chain noise.

I opened up the der to find that the tension adjusting clamp for the clutch band broke on the backside at the bend and wasn't providing any tension on the clutch band. I can only assume this will be warrantied and if it isn't then I can only assume this little part is really cheap.

I also apparently have the new version that does not have the adjusting wrench included inside of the casing. You are supposed to use needle nose pliers to adjust the tension nut.

The der works perfect other than the clutch doesn't work at all so I'm going to use it tomorrow and have it warrantied on Monday. I just wanted to give everyone a heads up and show the pics.

Bicycle wheel rim Bicycle part Rim Spoke Bicycle tire

How it appeared when I opened it up

Finger Nail Metal Iron Thumb

The broken piece

Finger Metal Household hardware Silver Aluminium

It is really broken, that is the clutch cam it surrounds on the left and on the right is the tension adjusting nut

Finger Household hardware Thumb Silver Aluminium

How it is supposed to look on the clutch cam
 

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Time to call Shimano. They will take care of you, they have good customer care, just explain to them the situation and they will probably just send you out a new one.

Seems like a few of these have been breaking lately in the same spot. Also appears to be with the XT versions. I purchased an XTR version when the clutch mechanism was first released by Shimano back in 2011, and so far mine has not given me any issues.
 

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I just got the same unit -- thanks for the heads-up!

I also apparently have the new version that does not have the adjusting wrench included inside of the casing. You are supposed to use needle nose pliers to adjust the tension nut.
My high-school auto teacher would be having a hissy-fit about now :)

A 5.5mm ignition wrench fits perfectly. I got a "midget Craftsman wrench set" off ebay for about $12 delivered -- the other wrenches in the kit could be useful for other small work.

A 7/32" wrench is pretty close.
 

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Same thing happened on my SLX, they warrantied in less than a week.

Now I've got an even weireder issue where it feels like the clutch is notchy, and engaged even when I set it to "off."

It's awesome how you can deal with them directly and their warranty is awesome, but I think there is still some engineering to be done with the Shadow+. I'll just keep sending em back, as a new derailleur every ~3 months is not a bad deal.
 

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squish, squish in da fish
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thats sucks, but shimano will def take care of you fast. bummer that its was broke for your ride. if you know a welder he could through a couple tacks on that in 5 seconds. you'll probably get a whole new RD, my dust cover fell off my zee shifter and i inquired about buying a new one and 2 days later i had a new shifter in the mailbox. CS is awesome.
 

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Discussion Starter · #11 ·
Fishwrinkle-- I am a fairly decent welder but the metal is so thin it would have to be such low heat that the weld wouldn't be much better than chewing gum
And the weld would add a lot bulk that there isn't room for

The lbs already 2 dayed the der it should be back by Saturday or Monday
 

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squish, squish in da fish
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yeah i was thinking of an in a pinch solution. i fab with sheet metal all day, that looks like about 16ga, thats on the thick end of what i work with. 17.6V 190 ipm would get you nice flat tacks. i knew you'd have a new RD quickly.
 

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Discussion Starter · #16 ·
^^^ yep it would be and unless your shop is a "shimano authorized dealer" they can't just call them up and say " hey this is broken I need a new one" they have to return the part to shimano and let them decide.
 
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