Apologies all. I'm a noob when it comes to bikes and have been asking lots of questions. 

My bike is pretty new. Just got it two weeks ago. I'm wanting to throw a whitewall on the rear and keep the front as it is. Can I do that or should I change both up?  I've done 500 kms on it so far. 

Appreciate any info!

i'd replace one.

Normally do anyway as the rears wear out at two to one front.

Does Michelin make a whitewall that would match the tread on the Scorcher?  Or is it ok to run different brands being so new?

Not sure about the pattern, but as long as the tyre meets the manufactures minimum specs (see your manwell) then all is good. Matching brands is not a necessity.

why the hell not .. keep the old tyre for when you get sick of the mismatched look

 i'am not as young as i use to be  so i only do 1 @ a time,   or i get 2 tyred

 OH.... That's just a shocker!!!    

thats exactly what  my women said when she 1st seen it,  but she is just use to me now