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Topic starter
Anyone running this combo without a goat link adapter or similar?
XT rear mechs are rated as max 42, anyone successfully using one with 46?
Note, I have a 3mm boost spacer so cassette is 3mm further away from the mech, which may help
I know the SLX is rated at 46t so should I just go for that instead
Posted : 09/03/2018 10:03 am
M8000 XT mechs work fine 46T and shimano have since updated the specs to reflect that.
Posted : 09/03/2018 10:12 am
I am and I didn't need any adaptor just b screw adjustment. I think it might depend on hanger length/position meaning some  bikes it wouldn't be any good.
Fine with 1x11, 46tooth on a Scott Spark 2009!
Posted : 09/03/2018 10:14 am
Not quite sure what the question is but have a look here
http://productinfo.shimano.com/#/com/2.0?types=mtb&cid=C-432&acid=C-435
11-46t is shown as 1x.
Do you just need a longer RD?
Posted : 09/03/2018 10:14 am
All M8000 mechs are rated as being compatible with 11-46. GS and SGS both fine.
Posted : 09/03/2018 10:20 am
Topic starter
Thanks
Nearly everywhere selling the rear mech lists it as 42max. Guess it's just old copy on their pages
https://www.evanscycles.com/shimano-xt-m8000-shadow-11-speed-rear-derailleur-EV249145
Posted : 09/03/2018 10:26 am
I recently ordered an XT groupset from my LBS (worked out as cheap as online) with an 11-46 cassette, they actually swapped out the XT cassette for the Sunrace one for me as I wanted a smoother spread of gears near the top end, works fine, they ordered an SGS mech as they said that`s what Shimano recommend for 11-46, no goatlink or anything else required.
Posted : 09/03/2018 12:13 pm
isnt the 42t max, between the smallest 11t and largest 46t so its only using 35T, thats how its read on other rear derailleurs
Posted : 09/03/2018 12:28 pm
That relates to the capacity figure. The GS mech has a capacity of 39T so at a difference in sprockets of 35T you are well within capacity.
Posted : 09/03/2018 12:35 pm
Yep. Using a Sunrace 11-46 with an XT GS (med cage) mech no probs.
Posted : 09/03/2018 8:45 pm
Slightly bizarrely you want the medium cage rear mech.
The long cage is meant for 2x and I believe is not rated to 46 where as the medium is.
Posted : 10/03/2018 3:47 pm
I was a bit peeved when I found the LBS got me an SGS cage as I thought SG was supposed to work better but they said that's what Shimano advised (SGS is rated to 46 teeth on the Shimano site as well as the SG), I was in a different LBS the next day and the mechanic there also said he'd fit a long cage on the 11-46, looks slightly ungainly tho.
Posted : 10/03/2018 6:43 pm
Medium cage is all that is needed for a 1x set up with 46t cassette.
Long cage is for 2x.
Posted : 10/03/2018 8:14 pm
Topic starter
All fitted and working sweet with a medium cage.
Thanks all
Posted : 10/03/2018 8:55 pm