It should have no problem. I use Shimano 10-speed bar-ends with a 9-speed
XT rear derailleur, and it indexes perfectly.
The Altus/Acera derailleur has the exact same shift ratio (SIS).
On Fri, Sep 14, 2018 at 1:27 AM, lconley wrote:
> I have successfully used the Altus for 9 speed indexing
I have successfully used the Altus for 9 speed indexing (Dura Ace indexing
bar end on thumbshift adapter) and it has enough travel to shift the chain
into the spokes (don't ask) on my Clementine. Shimano cassette on VO
touring hub.
Laing
Cocoa FL
On Thursday, September 13, 2018 at 4:44:47 PM
