This a good sprocket?

[mjfreuland]

JT Rear Steel Sprocket 47T Yamaha FZ-1 06-09: eBay Motors (item 330451325412 end time Oct-11-10 15:24:36 PDT)

 

[Buildercher]

JT Rear Steel Sprocket 47T Yamaha FZ-1 06-09: eBay Motors (item 330451325412 end time Oct-11-10 15:24:36 PDT)

Looks good.

 

[NJFZ1]

:ditto: Go for it

 

[Gohot229]

I'd go with the steel.....

 

[ballmead]

It looks alright, go for it.
I bought a Drive Systems Superlite Steel sprocket myself from Solo Moto Parts.