the f4i MC isn't radial (dunno about 'busa)

 

the one i bought is called a GP Sleeve. packing claims it protects against UV rays and will protect the bike from seeping brake fluid....

i got it cause i thought it looked cool. its all black with red honda word and logo.

 

Even if it does nothing, I like mine. Funny though, don't have one on my race bike (not right kind of MC), only the street bike!