If you’re looking for the power and productivity of a premium commercial mower on a budget, you’re looking for a Radius X-Series. It combines features proven on our premier machines with the unbeatable value and efficiency you’ve come to expect from the Radius.
Choose from 52- or 60-inch UltraCut Series 4 cutting decks, both with powerful Kawasaki commercial engines –– a FX801 on the 52-inch, and a FX921 on the 60-inch. The integrated Hydro-Gear transmissions work with aggressive 24-inch Kenda drive tires to provide unmatched traction and control, with forward speeds of up to 10 mph. Large semi-pneumatic caster tires, 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 provides added comfort.
RZX921GKA604A3 Specs & Compare
| Equipment | |
| UPC | 193308225210 |
| Blade Spindles | No maintenance, sealed and non-greasable spindles; 7.75"-diameter cutter housing with 25mm(.98")diameter spindle shaft and splined blade driver. |
| Drive Tires | 24 x 12-12 K3012 |
| Front Caster Tires | 13 x 6.5-6, smooth tread, pneumatic. Sealed Taper Roller Bearings |
| Caster Forks | Cast steel caster yoke arms |
| Tractor Frame | Unibody, welded, heavy-duty 2" X 3" rectangular tubular steel. |
| Steering Control | Hydraulically dampened twin levers adjustable both fore and aft. Also has 2-position height adjustment. |
| Parking Brake | Lever-actuated pawl brake. |
| Seat | Deluxe suspension (adjustable spring suspension) seat with high back, molded foam flip-up armrests, and integral safety switch |
| Electrical | 12-volt battery with 15-amp alternator. |
| Standard Features | Engine hour meter, cup holder, tow hitch and jack receiver |
| Power Components | |
| Engine Brand | Kawasaki |
| Engine Model | FX921V |
| Engine Displacement | 999cc |
| Engine Series | V-Twin |
| Fuel System | Carbureted |
| Engine Speed | 3,820 rpm |
| Air Filter | Heavy-duty canister air filtration system |
| Fuel Type | Gas Carbureted |
| Fuel Capacity | 7-gallon (26.5-L) single fuel tank with single fill location. |
| Fuel Indicator | Translucent Visual |
| Drive | Hydro-Drive |
| Drive Description | Dual Hydro Gear ZT3400, hydrostatic transmission with charge pumps, relief valves and independent, replaceable filters. |
| Speed | Infinitely variable speed selection from 0-10.0 mph (16.1 kmph) forward, 0-6.0 mph (9.7kmph) reverse. |
| Carb Compliant | No |
| Deck Lift | Standard; foot-controlled deck lift changes cutting height and lifts the deck to maneuver around obstacles, or place in transport position. |
| Safety Package | Operator Presence Controls (OPC) and drive system interlock, with safety interlock system indicators. |
| ROPS | 2-post foldable ROPS standard with seat belt and latch. |
| PTO Engagement | MagStop electromagnetic 200-ft-lb clutch |
| Drive Wheel Release | Allows unit movement without engine running. |
| Engine Spec | FX921V_S04-R |
| Decks | |
| Width / Cutting Deck | 60" |
| 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. |
| Deck Construction | 10-gauge high strength alloy top that is formed and continuously seam welded, with 7-gauge side skirt. |
| Blade Tip Speed | Approximately 18,500 fpm. |
| Cutting Heights | 1.5" (3.8 cm) to 5.0" (12.7 cm) in 0.25" (.6 cm) increments, adjustable from operator's seat. |
| Blades | 3 Blades at 20.50" Length |
| Dimensions | |
| Width | 72.3 in (183.6 cm) |
| Length | 80.5 in (204.5 cm) |
| Height | 70 in (178 cm) |
| Curb Weight | 1006 |
RZX921GKA604A3 Features & Benefits
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.
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.
Service Made Easy
The floor pan and belt shields remove easily without tools, making it easier to access the belts and top of the cutting deck for maintenance. Plus, a standard welded jack receiver on the Radius frame enables easier service of the underside of the deck when combined with the optional jack.
New Side Pods
The new side pod design places the most important controls right at the operator’s fingertips, for easy operation with a minimum of necessary movement.
Upgraded Casters
Radius X-Series models feature upgraded caster assemblies featuring maintenance-free tapered caster pivot bearings, with cast steel caster forks and large, semi-pneumatic caster tires.
RZX921GKA604A3 Attachments & Accessories
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