Radius S-Series with 23 HP Kawasaki FR691 Engine and 48” UltraCut Series 3 Deck

The Exmark Radius S-Series 48-Inch Zero-Turn Mower is built to provide dependable commercial mowing performance with exceptional maneuverability, durability, and operator comfort. Equipped with a 691cc Kawasaki FR691 V-Twin engine and Hydro-Gear hydrostatic drive system, it delivers smooth power and variable speeds up to 9 mph for efficient operation on residential and commercial properties alike. Its 48-inch UltraCut Series 3 floating deck is constructed with heavy-duty welded steel and offers cutting heights from 1.5" to 5", along with side discharge and optional mulching or bagging capabilities for a clean, consistent finish.

Designed for long hours of productive mowing, the Radius S-Series features hydraulically dampened steering levers, a deluxe suspension seat with flip-up armrests, foot-pedal deck lift with assist springs, and maintenance-free blade spindles. Additional features include a foldable ROPS with seat belt, 7-gallon fuel tank, hour meter, cup holder, and a rugged tubular steel frame for long-lasting reliability. Backed by a 4-year/500-hour warranty, the Radius S-Series delivers the performance and value professionals and property owners can count on.

Equipment- 

Width / Cutting Deck: 48"

Drive: Hydro-Drive

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 6.5-5 smooth-tread, pneumatic.

Drive Tires: 23 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.

Cup Holder: Yes

Electrical: 12 volt battery with 15-amp alternator

Standard Features: Hour meter, cup holder, hitch, suspension seat

Seat: Deluxe, two-tone, bolstered suspension seat with flip up armrests and 3" travel

Optional Features: Hour meter, suspension seat and armrests

Power Components- 

Engine Brand: Kawasaki

Transmission Brand: Hydro-Gear

Transmission Speeds: Infinitely Variable

Engine Model: FR691

Engine Displacement: 691cc

Engine Series: V-Twin

Fuel System: Carbureted

Speed: Infinitely variable speed selection from 0–9.0 mph forward, 0–4.5 mph reverse

Transmission: Hydrostatic

Engine Spec: AS43-R

Engine Speed: 3,600 rpm

Air Filter: Standard Engine Manufacturer's air filter

Fuel Capacity: 7-gallon single fuel tank with single fill location

Drive Description: Two Hydro-Gear ZT-3100 hydro static transmissions with no hoses and integrated cooling fans and integrated reservoir

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: Foot pedal, single point drop pin HOC lift assist springs

Carb Compliant: No

ROPS: 2-post foldable ROPS standard with seat belt.

Deck-

Deck Style: Floating Deck

Deck Style Description: Full-floating UltraCut Series 3, side discharge standard, with molded discharge chute and option to bag or mulch.

Deck Construction: 10-gauge top that is formed and welded, 7-gauge side skirt and .375" welded bumper. 4 point suspension.

Cutting Heights: 1.5" to 5.0" in 0.25 increments

Blade Tip Speed: Approximately 18,500 fpm

Blades: 2 Blades at 24.5" Length

Warranty: 4-Year 500hr