nope cause its not a derailer its a single speed chain tensioner made sort of in the similar shape of a derailer but it has no gear limit screws or no left and right pivots..the arm is a solid piece that hooks up the the derailleur hanger ..so once installed and lined up with the rear cog it just says n place no adjustments need and cause of the super power spring the chain always stays tight..and as it stretches and wears the tensor will maintain a tight chain line always .. its 100x stronger than other tensiors and derailleurs and the tension spring is very strong and much tough than any other tensior or derailor... i was given that tensior last year to test ride it for a full year and then give a review ...it was so good that i used it a full year with no chain slap or skiping..i used and tested it out on my dirt jumper bike ..it works so well at keeping the chain tight that you can use it on road, off road ,steer, park ,or DJ...i tested it out to the max off road and dirt jump...street/park ...off road on road no mater how rought it always kept the chain tight...and i had tested ful yimeall that year on and off road after i wrote a review on it and since then gave it to my friends bike

lp1.pinkbike.org/p4pb5351387/p4pb5351387.jpg

 na its covered Single Speed