I just took off a FI cage......they are good on a 600rr.....They can take only a few hard hits and possible frame damage. Each wreak is unique. If you dont pancake your bike and can guide it down you will be ok. I just wanted a cage that could take abuse after abuse. I know have a CJ-3 Tygershark!

 

unknowingly, many people said to me that FI cages are generally bad, it provided there has SI for 600rr.

 

they both seem good, my bike had a powers on it already and i love it, and si seems to be bad ***.