The Simplicity Axion 21/42 is a lawn tractor with a rated output of 21 hp — placing it among the higher-powered machines in its class. The Axion 21/42 was produced from 2010 to 2011. Power comes from a 1-cylinder electric engine, driving through a hydrostatic transmission. Listed weight is 226 kg, and it is aimed at jobs of around up to 200 ac. Recorded specifications in UK and US units are listed below.
Provisional listing — the headline figure is shown; full specifications are auto-generated and pending verification against published sources.
Rated power
21 hp
Weight
226 kg
Catalogue coverage
Variants represented
2
Richest spec table
35 rows
Recorded power
21 hp
Recorded weight
226 kg
Transmissions
hydrostatic
Production years
2010-2011
Verified variants
0
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Overview
ManufacturerSimplicity (a part of Briggs & Stratton)Reference
Zero-turn mowerReference
Original price was $2,700 in 2010Reference
Open operator station.Reference
Engine
21HP Briggs & Stratton 1-cylReference
Fuel tank11.4 LReference
Briggs & StrattonReference
1-cylinderReference
Power15.7 kWReference
StarterelectricReference
Starter volts12Reference
Transmission
hydrostaticReference
TransmissionHydro-Gear EZTReference
TypehydrostaticReference
Gearsinfinite forward and reverseReference
PTO & Hydraulics
Mid PTOindependentReference
ClutchelectricReference
Dimensions
Wheelbase114 cmReference
Weight226 kgReference
Front tire11x4-4Reference
Rear tire18x8.50Reference
Lawn/turf front11x4-4Reference
Lawn/turf rear18x8.50Reference
Length154 cmReference
Height114 cmReference
Simplicity Axion 21/42 attachments
42" mid-mount mower deckReference
Electrical
GroundnegativeReference
Battery CCA230Reference
Battery volts12Reference
42" Mower deck
Typemid-mount SimplicityReference
Type2-blade with electric liftReference
Cutting width106 cmReference
Overall width132 cmReference
Cut height3 to 9 cmReference
Cut positionsinfiniteReference
Values normalized to UK metric units. Every figure is traced to at least one source; verified specs are cross-checked against two or more.