DRAG SPECIALTIES Piston - Twin Cam 21988-07+.005 Drag-Ness FM1 Marker Lights Studs are 5/16" x 7/8"

Studs are 5/16" x 7/8" L and 7" center-to-center

Dimpled to accept almost all spoke lacing patterns

Replacement is recommended when oil lines are removed

Direct replacement for 7" headlights

DRAG SPECIALTIES Piston - Twin Cam 21988-07+.005 Drag-Ness FM1 Marker Lights Studs are 5/16" x 7/8"OEM quality cast aluminum alloy construction Some fitments feature pistons with a coating that extends piston life, reduces friction and allows for cooler running engines Ideal for OEM replacement Economical with great performance, all in one package Kits include two pistons, wrist pins and clips Accept OEM or Hastings rings (order separately)