Because I love titanium fasteners the best bro , I could also have used aluminum on a lot of areas , but DLC ti bodywork fasteners for example look so nice and neat . Having said that , I am currently using aluminum on my Kwaka , because I have so many l took off the Busa !!Hi. WHY WHY WHY use heavy Ti sprocket nuts? You can get aluminium drilled for safty wire if needed they are lighter than Ti! Steel, Ti, aluminium, plastic. Yes I use plastic bolts and nuts where I can save weight.