[Christ]

Some other things you can save weight with:

Spare/tools -replace with plug kit and small air compressor
Rubber foot pads on the pedals
Fixed glass - poly-acrylic
Seats: suspension seat rebuild
Exhaust: pre-muffler/resonator if equipped
Cut the plastic behind your air dam

There's more, but some involves cutting/drilling parts

Urethane is typically lighter than rubber, for bushings, but dont go out of your way to replace ones that don't need it.