Different transmission between 05/06?

[TRX450R05]

I try to find, which differences for the transmission between 05/06! (each gear ratio) And also, why Honda put on a 13T sprocket for 2006 and 14T for 2005?

somebody know?

Thanks,

:confused:

[tltcracing]

the internal gears are different so they put a smaller front sproket on for more tork.