For our bikes a bit of weight is nothing to worry about, but if you do want to shave a bit off then he is how...

Renthal rear sprocket
Saves you a Kilo

Billet keyless fuel cap
Saves you 1/2 Kg

Fitting carbon race cans
Saves you at least 9Kg

Fitting Lithium race battery
saves you 4Kg

Going to pod air filters..bit more complex than just a bolt on job but junking the original airbox set up will save you 3Kg