This Is An X-Long Propeller Adapter Nut from Dave Brown Products.|
Plain black, CNC machined steel construction.
Use with 3-1/4" to 4" spinners.
This prop adapter kit tightens the backplate and propeller onto the
engine, then using a single bolt-on design, holds and centers
each spinner perfectly on its baseplate.
Will fit the following engines:
All YS 2-Strokes, OPS Maxi .30, Webra .61-1.20
(1) Propeller Adapter Nut
(1) Propeller Washer
Spinner Cone & Bolt
Crankshaft Thread Size: M8x1.25
Nut Length: 1.625"
Although it will depend on the thickness of your prop and the
spinner size, as a general rule, always use the longest adapter