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Unofficial Home of Old Simplicity & Allis-Chalmers Garden Tractors

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    525 Specs



    Model Serf 525
    Engine 5 hp Briggs & Stratton, Model No. 130902, 4 cycle with 12.57 cu. in. displacement, vertical crankshaft. Air-cooled, built to Simplicity specifications.
    Transmission   All gear transmission. 3 speeds forward and one reverse.
    Speeds   Three forward speeds vary from 0.9 mph to 3.5 mph; reverse speeds up to 3.5 mph.
    Starter Easy-spin recoil starting.  
    Clutch-Brake   Combination clutch-brake for positive control. Depressing clutch halfway declutches unit, depressing all the way down applies brake.    
    Traction   Controlled Traction Differential--when one wheel is on slippery surface, other rear wheel continues to drive.
    Turning Radius   20 inches on inside wheel.
    Steering   Lever and drag link, ratio 1 to 1.
    Dimensions Without attachments--26 inches wide x 51-1/2 inches long x 32 inches high.
    Tires Pneumatic 4.00 x 6 x 11.00 in front; pneumatic 4.80/4.00 x 8 in rear.
    Seat Deluxe contour padded seat.

    [Source: Simplicity -- for picture perfect outdoor maintenance, 1969 Product Catalog, Form No. 868, courtesy of John Boesch]

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