Lifeline alloy screw in bar end plugslifelines alloy screw in bar end plugs are designed to help protect you from injuring yourself on the bar ends during a crash their rounded shape and countersunk bolt heads help to protect hands and knees during impact suitable for use on road bike drop bars or mtb flat bars the simple and lightweight design reinforces the ends of thin walled alloy or carbon flat handlebars to avoid crushing damage from lock on grips the rubber wedge design also means the