I had frame sliders on my Brutale, not R & G they were Puig. I removed them at the advice of tech. that works on my bike. He told the fuel tank was designed to protect the frame in the event of a crash, and that using aftermarket frame sliders could actually cause damage to the frame in a crash. I did remove them and I was hit and while riding and he was correct the fuel tank did protect the frame. The problem is getting a new fuel tank, but there wasn't a scratch on the frame.
Bikes:
2016 MV Agusta Turismo Veloce Lusso
2015 Triumph Street Triple R