Hi Paradox, an from me a warm welcome to ODK.
Yes mate, the small 12 tooth sprocket plus the double front one have reached the end of their serviceable life and will need replacing as well as the primary and secondary chains....It is no good putting back old chains on new sprockets; they will have stretched and will wreck the new sprockets in no time at all! wink
cheers

Please do not PM me asking for support. Please post your questions in the appropriate forums, as the replies it may receive may help all members, not just the individual member.
Kindest Regards, Darryl grin