Older shimano 10 sp...
 

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[Closed] Older shimano 10 speed derailleurs

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I was on the brink of finally buying the shimano M4100 set for christmas after waiting half a year, only to see that the M5120 derailleur I was looking at is all out of stock. Could an older derailleur like the SLX RD M670 still do the job? I am still set on buying the rest of the components of the M4100 groupset including the 11-46 cassette.

Thanks


 
Posted : 21/12/2020 11:41 am
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I’d say… no. An 11spd mech (that can easily handle the 46t, such as M7000 GS) would be a better move. I you want Deore, the M6000 GS will do the job at a pinch (Shimano claim 42t max) if you can't get the newer one... plenty of them out there... I bought one recently.


 
Posted : 21/12/2020 11:45 am
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@kelvin would an 11 speed derailleur work with a 10 speed 11-46 cassette?


 
Posted : 21/12/2020 12:08 pm
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Yes, if you use a 10 speed shifter.


 
Posted : 21/12/2020 12:09 pm
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Looks like M7000 GS are cheaper than M6000 GS now as well... so might as well get the lighter 11spd one.


 
Posted : 21/12/2020 12:15 pm
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M5120 in stock here?

https://www.edinburghbicycle.com/shimano-deore-rd-m5120-10-11-s-rear-derailleur


 
Posted : 21/12/2020 5:09 pm

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