The new advancement of SRAM RED is a super enhancement of the groupset, it has new lever form, new brake hands, roters cut, weight saving improvements, ceramic pulleys for new visuals and considerable enhancement on front shifting. They do come with a bundled head unit, but do not offer the crank separately or the cassette. The new groupset introduces an advanced infrastructure which includes a wireless shift system and adds instantaneous hydraulic brake control, which completely changes the way it was before.