04-07 wheels are all the same so its a straight swap. Arashi wheels are chinese junk plain and simple. Carrozzeria (CoreMoto)wheels are great but yes you will need a new rear sprocket as their cush drive is different.
2004 CBR1000RR (Yelena)- modded track/street bike, 398lb RTR!
2002 RC51 (Christina)- rode hard and put away wet, sold
2006 CBR600RR (Nikki) - how the addiction started, sold