I put these, maybe they seem little, but after watching video, i think it is enough
They are what I use. MASTECH P/N 103.009. I'm not an engineer, but I've seen how "stuff" reacts in crashes. The Mastech bars use the same anchor points that the "little piece of plastic" uses. Since I trust Yamaha to know where the bike is designed to take a hit, the Mastech bars made sense to me. They bolt together, and support each other, and are attached to the bike's strong points. I asked a Yamatech what he thought of them, and even questioned the attachment point to the block. His opinion, and mine, is that if you crash hard enough to break the block where they attach, the rest of the bike is probably equally destroyed. So, for less then $200.00 (US) I think they will provide all the protection that "I" need.
EDIT: the ST 1300 has similar plastic pieces; they work fantastic. "Tested" them several times. They hold up well over repeated testing, with less collateral damage than the Yamaha's.