There is nothing to all relating to material of construction for fuel tanks in the road racing technical specifications. There are for other catergories, but nowt for RR. My old aprilia framed supermono had a fibreglass tank that was used for the TT.
and yes, i would maybe use a fibreglass tank if the rules could be clarified. not this season, but next, if the rules could be changed so as to reflect the ACU handbook tech regs for road racing
