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1 x 9 speed ((((SRA...
 

[Closed] 1 x 9 speed ((((SRAM))))))))))

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[#6062367]

read loads about running the 10 speed shimano+ clutch deraileurs with SRAM 9spd shifters, using a 5mm homemade spacer on the cable clamp....
but, am I missing something??
Why wont a SRAM 10 spd type 2 deraileur work with the SRAM 9spd shifter? they both have a 1:1 actuation.
Surely the indexing is only in the shifter!?


 
Posted : 24/03/2014 10:25 pm
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No one knows?


 
Posted : 25/03/2014 3:30 pm
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They aren't compatible. You actually need the cable pulls to be different- for compatability 9 shifts of a 9-speed shifter needs to pull the exact same amount of cable as 10 shifts of a 10-speed shifter, so each pull has to be relatively bigger.


 
Posted : 25/03/2014 4:46 pm
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Thanks for your answer Northwind, I often see you comment and can tell you know your stuff so I'll take your word for it.
But I still can't see why it won't work. If there isn't an index on the mech and the distance from high to low is the same, i can't get my head round what would be the problem.
im talking about using 9spd shifter, 9 spd cassette, 10 spd mech


 
Posted : 25/03/2014 7:54 pm