85 degree Spring-Down Main Gear RoboStrut Ready for 3/8" or 7/16" diameter Strut w/Air Kit (pair)

The 510 Series retract offers a high performance air up and spring down with an economy price. The 510 Series Main Gear can take a 3/8" or 7/16" diameter RoboStrut or 3/16" diameter gear wire kit is also available. Constructed out of high quality aircraft grade aluminum.