Honda had an issue with heat and put the wings on the stock tank.
I went with the Acerbis for that reason. Hey they built their tank with the wings as more fuel space. There are some that can't figure out how to mount the tank with the limited instructions that come from Acerbis, but don't let that stop you from considering them for your tank replacement.
Don't listen to the pin heads that couldn't figure out how to mount it and cut the tabs off the frame to make it work. The tank will fit and will come on and off quite smoothly once you get it on. The tank is really made well and the mounting hardware holds the tank in place.