aero seatpost light adapter Off 59% - www.sbs-turkey.com
Giant Propel has an aero seatpost, and neither of three supllied Varia ' adapters' can fit onto it. So I designed and printed my own adapter. : r/bicycling
First Look At Fly6 HD Camera & Tail-Light Combo | DC Rainmaker
Giant ISP Seatpost Clamp Adaptor | Tree Fort Bikes
Cat Eye Aero Seatpost Adapter For Rapid X3/X2/X at WesternBikeworks