Bogging at 9000 RPM's

[John712]

Not to long ago I went to IrocRobs house with my wifes bike and we put on a new Chain and Front Sprocket. Now today is the 1st time the bike has been out and my wife said its bogging at 9k RPM's. Redline is at 14K RPM's

Went back home and I took it out and yes she is telling the truth. Any Ideas.? IrocRob put the new Sprocket and Chain on and I trust his judgement so he is NOT the blame. But she said it didnt do it before the new chain, but on the wat there the chain was really tight.

OEM Chain and Sprocket 2002 GSXR750