Ok, an update.
KTM specifies a 3205B-2RSR. The one in my bike is one of those (I think, the top half of the writing is rubbed off) but it also has "6205 RSR" in big letters on the bearing seal.
FAG/INA do a 3205-B-2RSR-TVH
. Talking to my SKF chap, he says SKF are replacing all the "B" series with "A"s, only very minor differences between the two. So the SKF equivalent is 3205 A-2RS1
, A for Angular contact.
If I was in the USofA I'd just buy them from Stenhouse Racing