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Simplicity 450 vs Simplicity Wonder Boy
Verdict: Simplicity 450 vs Simplicity Wonder Boy
The Simplicity 450 and the Simplicity Wonder Boy are both lawn tractors — here is how they stack up on the figures that matter. Simplicity 450 leads on rated power with 5 hp against 4 hp. Simplicity 450 is the newer design (1958 vs 1957). In short: choose the Simplicity 450 for outright pulling power, or the Simplicity Wonder Boy if a tighter budget and lighter footprint matter more. Compare the full spec tables below before booking a demo.
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Fit & specs
Simplicity
62
Fit score
Best match
Clear
Simplicity
62
Fit score
Best match
Clear
Rated power
5 hp
4 hp
Confidence
40%
40%
Guide price
—
—
Overview
Manufacturer
SimplicityReference
SimplicityReference
air-cooledReference
air-cooledReference
Engine
Displacement
14.1 ciReference
10.2 ciReference
Bore/Stroke
70 x 60 mmReference
63 x 54 mmReference
Power (gross)
3.4 kWReference
—
Starter
electricReference
—
Starter volts
12Reference
—
Power
—
2.7 kWReference
Starter type
—
electricReference
Transmission
Gears
2 forward and reverseReference
1 forward and reverseReference
Clutch
—
mechanical idler pulleyReference
Dimensions
Front tire
10x2.50Reference
10x2.50Reference
Rear tire
4.00x8Reference
4.00x8Reference
Lawn/turf front
10x2.50Reference
10x2.50Reference
Lawn/turf rear
4.00x8Reference
4.00x8Reference
Simplicity 450 attachments
Attachment overview
24" Mower deck
Type
belt-driven gearReference
belt-driven gearReference
Cutting width
60 cmReference
60 cmReference
Cut height
3 to 8 cmReference
3 to 8 cmReference
Variants
990086
—
manual startReference
990102
—
electric startReference
Simplicity Wonder Boy attachments
Fit score weighs budget, operation size, crop match and data confidence against the details above. It’s guidance, not advice — always confirm with a dealer demo.