Q. Apache RR 310 and KTM 390 cc, which is better for performance?

Rr310 is an all around bike with enough power and looks along with ride confort and less aggressive sitting position. If you are asking for duke 390, it is also a good and powerful bike but it lacks the sporty look, going with rc390 will add that but the sitting position is aggressive and not comfortable for long rides. Both duke and rc are slightly more powerful than rr310, but as i said it is all around bike.

Ktm 390, as it has more bhp + compact aerodynamics. If u want big looking sports beast then go for 310, if u want small compact with top end speed then 390.

390!! But rr310 provides better cooling system, more comfortable fr long rides n good fuel efficiency too