Originally Posted by
zukahn1
The majority of of Sram stuff is cross compatible so a basic model RD like the rivel should work fine with most Sram 7/8/9 speed shifters properly set up. Issues may come if you are using a late model 10/11 speed specific DR with a 7 or 8 speed shifter. Yet even in That case it should like work fine nicely setup.
No. Rival shifters are 10sp. Rival shifters will work with 10sp MTB derailleur.