Signswise Watercooled Epoxy Motor Mount with Clamp for B40 40mm Brushless Motor Rc Boat For 40mm outer diameter motor The motor angel is adjustable; The motor mounts could be used on deep vee mono bottom or flat bottom rc boats; Distance between motor mount and clamp is about 55mm weight:40g Product Size:6cm*6cm*9.2cm Package Size :13cm*11cm*2cm