Some of that is over the top, some really expensive for the gain. If a guy was going to these extremes you should remove the kick stand and bracket for a free savings.
It really is up to the individual how much weight reduction they are aiming for and therefore how far they go $$ , and yes , most quality light weight components are unfortunately expensive . After all the obvious stuff is replaced , wheels , pipe etc , and a lot of small components , you can still keep going , but seldom is it ever going to value $ to weight . In my particular case , I wanted to individualize my bike also , after I got all the handling / weight mods ticked off , I invested in lighter weight but expensive savings , these include not only manufactured pieces , but large diameter ti suspension links , seat bolts etc , often custom machined by an old mate where possible to keep $ down . None of this was a massive gain by itself , but when everything is eventually tallied together , I hope to have a significant weight saving . I am yet to weigh the L2 , but it will happen . The L2 has every fastener except 2 rear engine long bolts and swingarm axle , all swapped out for titanium , and some race hex aluminum fasteners such engine covers , radiator and oil cooler . This bikes weight loss developement has been over years since late 2013 when bike was first purchased . I haven't junked things like the horn etc , because it is a street ridden bike operating in cop / defecting environment , but certainly did all that in the old days on GSXR's . Some people like to scout around for the lowest weight components to $ , and that's okay , but some also just get what they want for performance and individuality , and the cost , even when on a careful budget , comes second to your obsessed desires for your bike . Good luck with your mods .
