What are my options if I want to upgrade my original nc35 genny to a new/used one from another bike? GSXR/CBR etc.

Thanks in advance!

Search for G-force, just done mine. Cost about £300 all in with K7 gsxr parts and the g-force kit. Not got mine on the road yet but a few other on here have and its well worth the effort.

Just out of curiousity, what is the benefit of upgrading the gen? is it because the original one fails?

Its much lighter than the original genni so the motor spins up quicker. It most likely performs much better than the 15 year old NC charging system aswell so if you ditch the standard reg for a R6 part then you wont have to worry about that again.