$20at XtracycleBuyXtracycleKickBack 4 adapter for RFA$20Xtracycle$20BuySaveShareXtracycle profileThe creators who use it, or GearCred, may earn a commission when you buy through these links, at no extra cost to you.From XtracycleThe KickBack 4 adapter is required to install the KickBack 4 on the RFA.