Radius S-Series 52″
910-245-1644
Radius S 52
Advertised Price $7,699.00
Special Sale Price
Financing Options

With a compelling blend of speed, power, cut quality and value, the new Radius S-Series is the ideal zero-turn mower for home and acreage owners that demand advanced performance. Choose from 48-, 52- or 60-inch UltraCut Series 3 side-discharge cutting decks equipped with Exmark’s exclusive flow-control baffles for superior cut quality. The deluxe high-back seat features adjustable spring suspension, with molded flip-up armrests to deliver superior all-day comfort for operators of virtually any stature.

Radius S-Series models are designed for maximum durability with reduced maintenance needs. With just two annual grease points, low-maintenance HydroGear transmissions, reliable Kawasaki engines, and long-lasting components, the Radius S-Series is designed to run stronger and longer with less maintenance.

MakeExMark
ModelRadius S-Series 52" - RDS691GKA523A3
Year2026
MilesNew
EngineKawasaki FR691V V-Twin

Tab

Specifications

Power Components

  • Engine – Kawasaki FR691V V-Twin
  • Air Filter – Standard Engine Manufacturer’s air filter
  • Drive System – Two Hydro-Gear ZT-3100 hydro static transmissions with no hoses and integrated cooling fans and integrated reservoir
  • Speed – Infinitely variable speed selection from 0–9.0 mph forward, 0–4.5 mph reverse
  • PTO Engagement – Electromagnetic 105-ft-lb clutch
  • Fuel Capacity – 7.0-gallon (26.5-L) single fuel tank with single fill location.
  • Drive – Wheel Release – Allows unit movement without engine running.
  • Rollover Protection System (ROPS) – 2-post foldable ROPS standard with seat belt.
  • Deck Lift-  Foot pedal, single point drop pin HOC lift assist springs

Deck

  • Style – 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 Height – 1.5″ to 5.0″ in 0.25 increments
  • Blade-Tip Speed – Approximately 18,500 fpm.
  • Blades – 3 blades at 18″ length

Equipment

  • Tractor Fame – Unibody, welded, heavy-duty 1.5″ x 3″ rectangular tubular steel.
  • Steering and Motion Control – Hydraulically dampened twin levers adjustable both fore and aft. Also has 2-position height adjustment.
  • Casters- 0.375″ thick caster yoke arms.
  • Front Caster Tires – 13 x 6.5-5 smooth-tread, pneumatic.
  • Driver-Tires – 23 x 9.5-12 K3012
  • Safety Package – Operator Presence Controls (OPC) and drive system interlock.
  • Parking Brake – Automatic-actuated pawl brake.
  • Seat comfort – Deluxe, two-tone, bolstered suspension seat with flip up armrests and 3″ travelandard Features – Hour meter, cup holder, hitch, suspension seat
  • Blade Spindles – No maintenance, sealed and non-greasable spindles; 7.75″-diameter cutter housing with 25mm (.98″) diameter spindle shaft.

WEIGHT

  • Total weight on Radius S-Series 52″ deck – 881 lbs.

DIMENSION

  • Radius S-Series 52″ deck dimensions – 64.3″ x 73.7″ x 83.9″

Warranty

  • Limited Warranty: 4-Year or 500 hours Limited Consumer/Commercial, 3-Year engine.

Options

ltAccessories & Options

  • 2-Bag Collection System – Powered
  • 3-Bushel Bagger
  • 12-Volt Power Adapter
  • Bucket Mount
  • Engine Maintenance Kit
  • Equipment Cover
  • Extended Drive Lever
  • Hydro Maintenance Kit
  • Jack
  • Light – LED
  • Micro-Mulch System
  • Operator Controlled discharge
  • Seat Cover
  • Semi-Pneumatic Tire Assembly
  • Slope Sensor
  • Sun Shade
  • Full Suspension Seat & Tilt Frame
  • Tilt Frame & ISO Mounts
  • Trash Container
  • Turf Striper
  • UltraVac Collection Systems

*Accessories may not fit each model. Please visit exmark.com or check with your dealer on accessory fit-up for each model.

Why Hardy's Equipment Sales and Service

Welcome to Hardy's Equipment, where passion meets expertise in the world of tractors and small engine repair. With 24 years of unwavering commitment to excellence, our founder, David, leveraged his 18 years of experience as a mechanic in a tractor dealership to establish a thriving business. Rooted in principles of honesty, integrity, and fairness, we've been serving our community for six successful years.