In omrra, at PIR, your 400 would be in... lesee...
senior supersport 600, senior superbike 600...
Both of those would be terrible... you'd be racing 2004 (or earlier) gsxr600's, cbr600rr's, and r6's..
Then theres ultra light weight superbike... which would also be a nightmare, but not quite as bad....
Yeah, we don't have jack or #$%* for anything newer than 69 (72 for some models, like the 350t) or older than late 90's. Kinda sucks.