Pro vibe 7s handlebars trackthe vibe 7s track handlebars are the ultimate lightweight and strong aluminium track handlebars made from 7075 aluminium which is commonly used in the aircraft industry and featuring oversized 31 8mm tubing the v7s handlebar reduces unwanted flex under load by increasing strength and rigidity featuresmaterial 7075 aluminiumoversized 31 8mm clamp diameter reduces unwanted flex under high load by increasing strength and rigidityfor further rigidity the 31 8mm dia