Just got this from the bridgestone site for 023s on FZS600 2002. That was so obviously a mistake in your print out, why would all the rears be 2.9 except one.
FRONT
Tyre size: 110/70 17 (54W) TL
Pressure: 2.5
BATTLAX
BT-023
Consistent, high-level performance, wear life, grip and control.
Riding style: Touring
REAR
Tyre size: 160/60 17 (69W) TL
Pressure: 2.9
BATTLAX
BT-023
Consistent, high-level performance, wear life, grip and control.
Riding style: Touring