They say simplicity is the basis of great engineering. And it doesn’t get much simpler than the Exmark Commercial 21 S-Series self-propelled lawn mower, beginning with its patented front height adjustment. This straightforward design makes conventional pivot-style adjusters obsolete. There are zero grease points and less than half the parts of other walk-behind mowers in its class. That makes servicing the S-Series almost as easy as it gets. Then there’s the single-speed transmission, simplified bail system, single-point rear height adjust, the innovative blade design that makes it easy to go from mulching to bagging, and the variable speed, from 0 to 4.2 mph. The list goes on and on. Just like the mower.
Mower Deck Widths: 21″
Equipment Specs
| Drive Tires | 9.0″ x 2.4″, semi-pneumatic. |
| Safety Package | Zone start |
| Engine Model | FJ180V |
| Engine Brand | Kawasaki® |
| Engine Series | FJ |
| Engine Speed | 3,300 rpm |
| Air Filter | Dual element air cleaner |
| Drive Description | Self-propelled; rear-wheel gear-driven. |
| Speed | 0.0 mph to 4.2 mph (6.6 kmph) forward. |
| Fuel Capacity | 2 quart (1.8-L) integral fuel tank |
| Engine Type | Carbureted |
| Engine Displacement | 179 |
| Drive | Belt-Drive |
| Fuel Indicator | None |
| Carb Compliant | No |
| Fuel Type | Gas Carbureted |
| Model Description | Comm 21 S-Series Self Propelled Zone Start w/ Kaw FJ180V (180 cc) |
| Deck Style | Fixed Deck |
| Deck Style Description | Fixed deck, Rear -discharge bagger standard with option to mulch. |
| Width / Cutting Deck | 21″ |
| Deck Construction | 5″ deep, 1/4″-thick die-cast aluminum. |
| Cutting Heights | 1.0″ (2.5 cm) to 4.5″ (11.4 cm) in 0.5″ (1.3 cm) increments. |
| Blade Tip Speed | Approximately 18,500 fpm. |
| Bag Capacity | 2.5 bushels (20 gallons). |
| Blades | 1 Blade at 20.5″ Length |
| Width | 22 in. (55.9 cm) |
| Length | 63 in. (160.0 cm) |
| Height | 38 in. (96.5 cm) |
| Curb Weight | 112 |
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