Exmark Radius X-Series with 23.5HP* Kawasaki FX730V Engine and 52″ UltraCut Series 4 Deck (Available Spring 2027)

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If you’re looking for the power and productivity of a premium commercial mower on a budget, you’re looking for the new Radius X-Series. It combines features first proven on our premier Lazer Z models with the unbeatable value you’ve come to expect from Radius.Choose from 52- or 60-inch UltraCut Series 4 side-discharge cutting decks and premium Kawasaki commercial engines. Integrated high-capacity HydroGear transmissions work with aggressive 24-inch Kenda drive tires to deliver unmatched traction and control, with ground speeds of up to 10 mph. Large semi-pneumatic caster tires, upgraded cast steel caster forks and tapered caster pivot bearings provide years of maintenance-free performance. And with an adjustable full-suspension operator seat and isolated floor pan, the Radius X-Series delivers enhanced operator comfort that’s ideal for long work days.Looking for more power, larger cutting decks and cutting-edge innovation and productivity? Check out our premier Lazer Z family of commercial zero-turn mowers.New for 2027 Radius X-Series mowers will be available in Spring 2027. Watch video for a preview of what’s next.

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Specs

UPC

193308247274

Starter

Electric

Steering Control

Hydraulically dampened twin levers adjustable both fore and aft. Also has 2-position height adjustment.

Caster Forks

.375″ thick caster yoke arms.

Front Caster Tires

13 x 6.5-6, smooth tread, pneumatic.

Drive Tires

24 x 9.5-12 K3012

Safety Package

Operator Presence Controls (OPC) and drive system interlock.

Parking Brake

Automatic-actuated pawl brake.

Tractor Frame

Unibody, welded, heavy-duty 1.5″ x 3″ tubular steel.

Blade Spindles

No maintenance, sealed and non-greasable spindles; 7.75″-diameter cutter housing with 25mm (.98″) diameter spindle shaft.

Electrical

12-volt battery with 15-amp alternator.

Cup Holder

Yes

Standard Features

Engine hour meter, cup holder, tow hitch and jack receiver, supspension seat

Seat

Deluxe suspension (adjustable spring suspension) seat with high back, molded foam flip-up armrests, and integral safety switch

Optional Features

Hour meter, suspension seat and armrests

Engine Brand

Kawasaki

Transmission Brand

Hydro-Gear

Transmission Speeds

Infinitely Variable

Engine Model

FX730V

Engine Displacement

726

Engine Series

V-Twin

Fuel System

Carbureted

Transmission

Hydrostatic

Speed

Infinitely variable speed selection from 0–10.0 mph forward, 0–5.0 mph reverse

Drive

Hydro-Drive

Engine Spec

FX730V_S26

Engine Speed

3,800 rpm

Air Filter

Cyclonic Air Cleaner

Fuel Capacity

7-gallon single fuel tank with single fill location

Drive Description

Dual Hydro Gear ZT3400, hydrostatic transmission with charge pumps, relief valves and independent, replaceable filters.

Fuel Type

Gas Carbureted

PTO Engagement

Electromagnetic 105-ft-lb clutch

Drive Wheel Release

Allows unit movement without engine running.

Fuel Indicator

Float gauge

Deck Lift

Standard; foot-controlled deck lift changes cutting height and lifts the deck to maneuver around obstacles, or place in transport position.

Carb Compliant

No

ROPS

2-post foldable ROPS standard with seat belt and latch.

Deck Style

Floating Deck

Deck Style Description

Full-floating UltraCut Series 4. Side discharge standard, with molded discharge chute and option to bag or mulch.

Width / Cutting Deck

52″

Deck Construction

10-gauge high strength alloy top that is formed and continuously seam welded, with 7-gauge side skirt.

Cutting Heights

1.5″ to 5.0″ in 0.25″ increments

Blade Tip Speed

Approximately 18,500 fpm

Blades

3 Blades at 18.00″ Length

Width

64.3″

Height

73.7″

Curb Weight

902

Length

83.9″

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