Joined: Jul 2007
Posts: 8,631
Likes: 3,543
From: South shore, L.I., NY
Bikes: Trek Emonda SL7, Cannondale Topstone, Miyata City Liner, Specialized Chisel, Specialized Epic Evo
My understanding is on a carbon steerer a compression plug is REQUIRED. A star nut is a spring, loaded under tension that pushes outward on the inner wall of the steel steerer tube and as such can damage a carbon steerer tube.