Ok was going to buy a 91 zx11 but the dude said that there was a 1999 1200 motor in it.The only thing is that the only bike that i know that has a 1200 motor is a zx12 year 2000-04 or 05. So what was made in 99 with a 1200 motor in it that drops down into a 91 zx 11 frame? Please help me out. By the way I was a Yamaha r1 fan and now tring the kawis so this is a big step for me.

 

And also can you change the rear end of the bike to a newer tail section? just woundering.