Propeller 4902Propeller diameter: 10,4"Pitch range: adjustable from 11" to 17"Spline count: 14Propeller shaft diameter: 19mmGear case diameter: 74/78mmIncluded in box:-Propeller 4902-One extra blade 6502-Adapter-Stainless washer-Hex key 1601-Operating instruction-Fitting details S4Right for every situationOptimum performance Adjustable pitch: In just a few minutes you can adjust the pitch and set your boat up for optimum performance in every situation (e.g. watersking, heavy or light loads..)With the right pitch (the pitch which provides the rpm recommended by the engine makers at full throttle) you achieve faster speeds, lower fuel consumption and better overall handling.Maximum economyReplaceable blades: After running aground its easy to change the damaged blades on the spot and continue your trip without delay, at lower cost than repairing or buying a new propeller.Maximum StrengthComposites: In the same way as todays Formula 1 cars are made of composites and carbon fiber materials to achieve maximum strength with minimum weight. ProPulse blades are made of composites which are stronger and 40% lighter than aluminumProPulse blades are not affected by corrosion or pitting as aluminium propellers are, and retain their pristine finish even after several years use.Maximum reliabilityThree-year guarantee: ProPulse is a Swedish quality product, with a 3-year guarantee on the hub.