11sp rear derailleur on a 10 sp. block??

[winjim]

I upgraded my bike from 10 speed to 11 speed only to find my freehub wasn't compatible. So I just fitted the cassette and left one of the cogs off so there were 10 instead of 11.

Not much of an upgrade then

 

[tincaman]

Not much of an upgrade then

10 speed 5700 to RS685 hydraulic disc

 

[winjim]

10 speed 5700 to RS685 hydraulic disc

Well that makes a bit more sense.