I have titanium hardware through out the bike coaster,you can use aluminium in non stressed areas like screen,fairing and such!the area like rearsets,shocker,triple clamp really most bolts that need torquing is a rough guide to not use aluminium!I used ti with switch housings,all the sump pan bolts,all engine case bolts,header mount M8 nuts so every bolt and nut I have found has been replaced with ti,even replaced the fuel pump M6 mount to ti lol!some will say a waste but that's their opinion and that's fine!Im trying to remember how many oem steel hardware fittings I changed I have a list and what they weighed around somewhere but 340+ rings a bell