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I would install on my 2008 scott scale new drive with xtr trail crank 38-26T but to do this I need proper front derailleur, scott is designed to e-type front derailleur.
XTR have 2 types of Etyp derailleur:
FD-M985-E (this is model for my scott but work with only 40-44T top gear teth)
FD-M985-E2 (e-type without BB plate, but scott scale have only one bottom bracket mount in seat tube, this derailleur needs two mounts)
Clamp based derailleurs are: 28.6, 31.8, 34.8mm and my seattube is over 38mm.
This is very strange for me that this crank can't be used on scott scale.
Otherwise - I tried with an e type xt front derailleur and even thought the cage was sitting a bit high it worked fine. The sram xx is 118,5 grams so much lighter.
new XTR Dyna-SYs is only compatible with components in the Dyna-Sys lineup so any other derailleur like Sram or Road 7900 will not work.
zik wrote:@Mads Kock
are you sure you succesfully used FD-M985-E derailleur with FC-M980 38-26T crank and this worked?
Nope - but I have used an old FD-M760-E with Sram XX 39-26T crank q156mm and it worked fine.
I don't think the difference in the chainline between XTR and XX would be any problem - this can be adjusted with the limited screws. What could be a problem is how much pull the xtr trigger on the front. I had problems when I changed from the x.0 gripshift to the XX triggers. Then I couldn't use my road front derailleur.
i have a M980 crankset (38-26T) on my Spark 900 2013. And i am looking for a Xtr Front Der. that is compatible with the Spark frame and with the 38T ring.
It doesnt exist.
The M985-E is compatible with Spark , but it is designed to work with 40-44T only.
And the M985-E2 is compatible with 38T . But it is not compatible with Spark mount.
Dont know what to do.
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