AV&V AV-VG5700 Heavy Duty Exhaust Valve Guide for Big Twin 84-04/Sportster 86-03 Standard Outside Diameter The boot features a PU-injected

The boot features a PU-injected front shin plate

Patented fork seal features a balanced dual lip design (oil side) that evenly distributes the pressure reducing operating temperatures

Reinforced Inner Calf Panel

Pro Field will keep your hands at exactly the right temperature thanks to softshell

Removable waterproof liner

AV&V AV-VG5700 Heavy Duty Exhaust Valve Guide for Big Twin 84-04/Sportster 86-03 Standard Outside Diameter The boot features a PU-injected* Use with . 530 Viton valve seals # AV V312530* Manganese Bronze * . 050in. shorter seal area for high lift applications * Profiled for optimum airflow. * High temp viton o ring seal * Smooth lead in * CNC machined Tech Tips: * Guide ID unfinished * OD = . 5625in. Std size * ID = . 3090in. * AV VGRC 3120 Reamer recomended for AV&V guides & valves