Buy Yamaha outboard propeller screw

These are original Solas boat propellers van gehard staal en aluminium! Wij zijn distributeur van SOLAS boat screws (Solas Marine Netherlands).

Which propeller screw should I choose?

If the outboard, or not to correct RPM comes from inboardmotor bv. 5700 rpm 6000 rpm and the engine makes but then it is advisable to one pitch to go up. When too much rows of bv. 6300 rpm it is advisable to have one pitch down.