Finish line fiber grip assembly gelfinish lines ceramic grease is the bicycle industrys newest and most fibre grip is specially designed to create friction and reduce slippage between clamped carbon fiber surfaces fiber grip eliminates the need to over tighten clamps to achieve secure connections over tightening can cause internal fractures and fatigue of carbon fiber parts apply fiber grip in a thin film to clamping areas of stems handlebars seatposts and seat tubes tested and approved