Simplicity lawn tractors

Simplicity 450

The Simplicity 450 is a riding lawn mower produced from 1958 to 1959 as part of the Wonder Boy Series. It was built in Port Washington, Wisconsin, USA, and originally sold for $290 in 1960. It features a 4.5 hp Briggs & Stratton 231cc 1-cylinder air-cooled gasoline engine with manual recoil and optional electric start. The transmission is a belt-driven gear type with 2 forward and reverse speeds. The mower has two-wheel drive, manual steering, and an open operator station. Tires are sized 10x2.50 front and 4.00x8 rear. Attachments include a 24" mid-mount mower deck with a 1-blade manual lift and a 30" front-mount blade with manual lift and angle adjustments.

Power4 hp

Founded24" deck

Model450

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Technical Specifications

Detailed specifications and technical data for Simplicity 450

Engine

Type	gasoline
Model	Briggs & Stratton 141302
Cooling	air-cooled
Starter	manual recoil, electric Optional
Cylinders	1-cylinder
Bore/Stroke	2.75x2.375 inches (70 x 60 mm)
Displacement	231 cc (14.1 ci)
Power (gross)	4.5 hp (3.4 kW)
Starter volts	12

Dimensions

Rear tire	4.00x8
Front tire	10x2.50

Mechanical

Drive	Two-wheel drive
Steering	Manual steering
Operator station	Open operator station

Production

Type	Riding lawn mower
Series	Wonder Boy Series
Built in	Port Washington, Wisconsin, USA
Original price	$290 in 1960
Years produced	1958 - 1959

Attachments

30" Blade	Simplicity front-mount, 30 inches width (76 cm), manual-lift, manual-angle
24" mid-mount mower deck	mid-mount Simplicity 990122, 1-blade with manual lift, Cutting width 24 inches (60 cm), Cut height 1.25 to 3.25 inch (3 to 8 cm)

Transmission