KTM 250sx or 250sx-f


New member
I’m new to Karting. Currently building an Intermediate Outlaw kart for my son. Wanting to know thoughts on engine selection. Trying to decide between KTM 250sx and KTM 250sx-f. What are y’alls thoughts and opinions? Thanks


Dawg 89
Is one a four stroke ?
Is there a weight break for the 2 stroke ?