Compare Models: 2025 Exmark Radius S-Series 48 in. Kawasaki FX651V 20.5 hp vs 2025 Exmark Radius S-Series 48 in. Kawasaki FX651V 20.5 hp at Otsego Outdoor Power

2025 Exmark Radius S-Series 48 in. Kawasaki FX651V 20.5 hp in Gaylord, Michigan — 2025 Exmark Radius S-Series 48 in. Kawasaki FX651V 20.5 hp

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Specs
Features

General Information

Manufacturer

Exmark

Model Year

2025

Model

Radius S-Series 48 in. Kawasaki FX651V 20.5 hp

Model Code

RZS651GKA48CA3

Color

Red

Body

Frame

Tractor - Unibody, welded, heavy-duty 2 x 3 in. rectangular tubular steel

Caster forks - 0.375 in. thick caster yoke arms

Tractor - Unibody, welded, heavy-duty 2 x 3 in. rectangular tubular steel

Caster forks - 0.375 in. thick caster yoke arms

Seat

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

Rollover Protection (ROPS)

2-post foldable standard with seat belt and latch

Safety Features

Operator Presence Controls (OPC) and drive system interlock, with safety interlock system indicators

Drivetrain

Drive System

Hydro

Drive Type

Drive description - Dual Hydro Gear ZT3100, hydrostatic transmission with charge pumps, relief valves and independent, replaceable filters

Transmission Make

Hydro-Gear

Transmission Speed

Infinitely variable

Number of Speeds

Infinitely variable speed selection

Travel Speed Forward

0 - 9.0 mph (14.5 km/h)

Travel Speed Reverse

0 - 5.0 mph (8.0 km/h)

Drive Tires

23 x 9.5-12 Super Turf TL

Drive wheel release - Allows unit movement without engine running

23 x 9.5-12 Super Turf TL

Drive wheel release - Allows unit movement without engine running

Steering Tires

Front caster tires - 13 x 6.5-6, smooth tread, pneumatic. Caged roller bearings (126-3289)

Parking Brake

Lever-actuated pawl brake

Electrical

Battery

12V with 15A alternator

Instrumentation

Fuel indicator - Translucent visual

Hour Meter

Engine

Engine Make

Kawasaki

Engine Model

FX651V, V-Twin Series

Horsepower

20.5 hp @ 3,800 rpm

Displacement

726 cc

Fuel System

Carbureted

Air Cleaner

Air filter - Cyclonic

Fuel Type

Gas carbureted

Fuel Capacity

7 gal. (26.5 l) single fuel tank with single fill location

Measurements

Length

82.9 in. (210.6 cm)

Width

61 in. (155 cm)

Height

69.7 in. (177 cm)

Weight

Curb - 900 lb.

Mowing Width

48 in.

Mowing Height Range

1.5 - 5.0 in. (3.8 - 12.7 cm) in 0.25 in. (0.6 cm) increments

Mowing Height Adjustments

Adjustable from operator's seat

Operational

Steering

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

Deck Construction

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

Deck style - Floating deck

Deck style description - Full-floating UltraCut Series 3

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

Deck style - Floating deck

Deck style description - Full-floating UltraCut Series 3

Deck Lift

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

Discharge

Side standard, with molded chute and option to bag or mulch

Spindles

Blade - No maintenance, sealed and non-greasable; 7.75 in. diameter cutter housing contains 0.98 in. (25 mm) diameter spindle shaft and splined blade driver.

Blades

2 at 24.5 in. length

Blade Tip Speed

Approximately 18,500 fpm

Power Take-Off (PTO)

Engagement - MagStop electromagnetic 125 ft. lb. clutch

Tractor Hitch

Tow hitch and jack receiver

Other

Includes

Cup holder

Features

ULTRACUT DECK TECHNOLOGY: Exmark’s exclusive UltraCut decks are featured on Radius models. Every UltraCut cutting deck features Exmark’s exclusive maintenance-free, sealed-bearing spindle assemblies for increased durability and reduced downtime, combined with zero maintenance.
HEAVY DUTY FABRICATED FRAME: With a fully welded frame built from 2x3-inch frame tubes, the Radius design places major components including the engine, hydro drive system and fuel tank lower in the frame. The lower center of gravity and better mass centralization results in increased traction and stability, with improved handling.
ADJUSTABLE ROLLOVER PROTECTION SYSTEM (ROPS): An adjustable ROPS system is easy to fold up-and-down, and is built from round tubes for easy, flexible accessory placement.
HEIGHT OF CUT MADE EASY: Our patented height of cut adjustment system is user friendly and allows the operator to quickly and accurately select height of cut from the operator seat.
FULL-SUSPENSION OPERATOR SEAT: Radius S- and X-Series models feature an adjustable full-suspension operator seat, with three inches of suspension and an EVC stretch foam base for superior all day mowing comfort.
FULLY GUARDED ENGINE: With strong steel lower protection and durable composite upper protection, the Radius S-Series engine is well guarded against damage from foreign objects.

Features

ULTRACUT DECK TECHNOLOGY: Exmark’s exclusive UltraCut decks are featured on Radius models. Every UltraCut cutting deck features Exmark’s exclusive maintenance-free, sealed-bearing spindle assemblies for increased durability and reduced downtime, combined with zero maintenance.
HEAVY DUTY FABRICATED FRAME: With a fully welded frame built from 2x3-inch frame tubes, the Radius design places major components including the engine, hydro drive system and fuel tank lower in the frame. The lower center of gravity and better mass centralization results in increased traction and stability, with improved handling.
ADJUSTABLE ROLLOVER PROTECTION SYSTEM (ROPS): An adjustable ROPS system is easy to fold up-and-down, and is built from round tubes for easy, flexible accessory placement.
HEIGHT OF CUT MADE EASY: Our patented height of cut adjustment system is user friendly and allows the operator to quickly and accurately select height of cut from the operator seat.
FULL-SUSPENSION OPERATOR SEAT: Radius S- and X-Series models feature an adjustable full-suspension operator seat, with three inches of suspension and an EVC stretch foam base for superior all day mowing comfort.
FULLY GUARDED ENGINE: With strong steel lower protection and durable composite upper protection, the Radius S-Series engine is well guarded against damage from foreign objects.