crwdns2934241:0crwdne2934241:0 Allen

crwdns2934249:0crwdne2934249:0:

Front or rear sprocket?

I don't have a Ktm but I'd say You  need to remove the rear wheel so you can loosen the chain. Then unbolt the sprocket to change it.

crwdns2915684:0crwdne2915684:0:

open