Re: [RBW] Rear derailleur for Deore XT M8000 11-speed 11-42 w silver2 shifters

[Thomas Lawn]

There are two huge obstacles you will have to overcome to make this project 
work properly: cable pull and cog clearance.

I do not believe it is possible to clear a 42t cog with the M310 derailleur (or 
any commonly available <10s rear derailleur) without a derailleur hanger 
extender. 
(https://link.getmailspring.com/link/fb37cd7c-e1c8-47a5-baa1-29ab78efb...@getmailspring.com/0?redirect=https%3A%2F%2Fwww.wolftoothcomponents.com%2Fproducts%2Froadlink=cmJ3LW93bmVycy1idW5jaEBnb29nbGVncm91cHMuY29t)
 Adding an extender may be the easiest way to get this working if the 
derailleur can currently span the entire cassette, because...
The 10s+ derailleurs that are available use a different pull ratio than the 9s 
ones and they require much more cable pull to move the same distance. This puts 
those silver shifters at a huge disadvantage.
There are a number of products like the Jtek Shiftmate that are designed to 
modify the cable pull, but with friction you can simply increase the diameter 
of the shifter body to pull more cable or modify/remove the stop that prevents 
the lever from going as far as it needs to. Microshift also sells shifters in 
bar end or thumbie options that are designed to index/friction Shimano and SRAM 
mountain derailleurs.

You are likely experiencing a combination of these issues (ie the current 
derailleur doesn't clear the 42t cog or move far enough to be in position to 
clear it) and that could be resolved by removing one of the cogs, installing a 
spacer behind the biggest one of similar size, and using a derailleur extender.

On Aug 27 2023, at 7:32 am, Stephanie A.  wrote:
> Hi everyone! I'm here, once again, to humbly seek out your advice. I've 
> combed through the (many, many) results here on 1x11 drivetrains and still 
> have two questions. I am using a silver2 shifter.
>
> 1. Has anyone been able to get a Shimano Altus/M310 to shift 11 speeds to a 
> rear cog with 42t? I can get it to 37t but no farther.
>
> 2. If you have successfully used silver2 shifters with an 11-speed cassette 
> and ≥42t cog, what derailleur did you use? Am I best off with the Shimano 
> M8000? REI currently has a sale on Shimano Alivio M3100-SGS 9, Shimano Deore 
> M5120-SGS 10/11, M4120-SGS 10/11.
>
> Signed,
> Stephanie, who chose parts to help her spouse turn the bike he has into a 
> bike that he loves knowing that the OEM Altus likely wouldn't get to all 11 
> cogs on the new cassette (which, even with only 10 usable cogs gives him more 
> options where he needed them than his previous setup)
>
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>  
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Re: [RBW] Rear derailleur for Deore XT M8000 11-speed 11-42 w silver2 shifters

[Eliot Balogh]

I would ask Russ over at Pathless Pedaled

On Sun, Aug 27, 2023 at 7:32 AM Stephanie A.  wrote:

> Hi everyone! I'm here, once again, to humbly seek out your advice. I've
> combed through the (many, many) results here on 1x11 drivetrains and still
> have two questions. I am using a silver2 shifter.
>
> 1. Has anyone been able to get a Shimano Altus/M310 to shift 11 speeds to
> a rear cog with 42t? I can get it to 37t but no farther.
>
> 2. If you have successfully used silver2 shifters with an 11-speed
> cassette and ≥42t cog, what derailleur did you use? Am I best off with the
> Shimano M8000? REI currently has a sale on Shimano Alivio M3100-SGS 9,
> Shimano Deore M5120-SGS 10/11, M4120-SGS 10/11.
>
> Signed,
> Stephanie, who chose parts to help her spouse turn the bike he has into a
> bike that he loves knowing that the OEM Altus likely wouldn't get to all 11
> cogs on the new cassette (which, even with only 10 usable cogs gives him
> more options where he needed them than his previous setup)
>
> --
> You received this message because you are subscribed to the Google Groups
> "RBW Owners Bunch" group.
> To unsubscribe from this group and stop receiving emails from it, send an
> email to rbw-owners-bunch+unsubscr...@googlegroups.com.
> To view this discussion on the web visit
> https://groups.google.com/d/msgid/rbw-owners-bunch/ba86afc6-45df-4c79-98cd-992a917e9e74n%40googlegroups.com
> 
> .
>

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[RBW] Rear derailleur for Deore XT M8000 11-speed 11-42 w silver2 shifters

[Stephanie A.]

Hi everyone! I'm here, once again, to humbly seek out your advice. I've 
combed through the (many, many) results here on 1x11 drivetrains and still 
have two questions. I am using a silver2 shifter.

1. Has anyone been able to get a Shimano Altus/M310 to shift 11 speeds to a 
rear cog with 42t? I can get it to 37t but no farther.

2. If you have successfully used silver2 shifters with an 11-speed cassette 
and ≥42t cog, what derailleur did you use? Am I best off with the Shimano 
M8000? REI currently has a sale on Shimano Alivio M3100-SGS 9, Shimano 
Deore M5120-SGS 10/11, M4120-SGS 10/11.

Signed,
Stephanie, who chose parts to help her spouse turn the bike he has into a 
bike that he loves knowing that the OEM Altus likely wouldn't get to all 11 
cogs on the new cassette (which, even with only 10 usable cogs gives him 
more options where he needed them than his previous setup)

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