1) Angle producers 2) Arm bones 3) Arm stiffeners 4) Armbones 5) Arms of a sort 6) Bicycle spokes 7) Bicycle spokes, essentially 8) Bicycle spokes, geometrically 9) Bicycle wheel spokes 10) Bike spokes 11) Bike spokes, essentially 12) Big name in timepiecemaking 13) Big name in watches 14) Big name chronometers Found on https://www.crosswordclues.com/clue/radii