HELP, Piston for ktm sxr PRO senior -97 Dec 13, 2020 16:31:48 GMT -5 via mobile Quote Select PostDeselect PostLink to PostMemberGive GiftBack to Top Post by perffa on Dec 13, 2020 16:31:48 GMT -5 Hi Does anybody know what piston that is for KTM SXR PRO senior -97 Think it is a c-piston and 39 mm.