Radius vs IS 600
Radius vs IS 600 compared side by side: specs, ratings, price and owner feedback from our independent reviews.
| Radius | IS 600 | |
|---|---|---|
| Our rating | 3.8 | 3.8 |
| Performance | 4.0 | 4.0 |
| Build quality | 4.0 | 4.0 |
| Reliability | 4.0 | 4.0 |
| Value for money | 3.5 | 3.0 |
| Comfort & ergonomics | 3.5 | 4.0 |
| Features | 3.5 | 3.5 |
| Price | $6,699 | $8,689 |
| Specifications | ||
| Power type | Gasoline | Gasoline |
| Engine | Kawasaki FR691V 23 hp (S-Series 48 and 52-in.); Kawasaki FR730V 24 hp (S-Series 60-in.); E and X not clearly stated | Kawasaki FS600V 18.5 hp; Kawasaki FS691V 23 hp; Briggs and Stratton CXi 25 hp, gross, per Ferris |
| Displacement | — | 603 cc (FS600V); 726 cc (FS691V); 724 cc (CXi) |
| Fuel type | Gasoline | Gasoline |
| Transmission | HydroGear ZT-3100 (S-Series) | Dual Hydro-Gear ZT-3200 transaxles with 7-in. fans |
| Drive | Zero-turn, dual-lever steering | Zero-turn, rear-wheel drive, lever steering |
| Deck size | 48, 52 and 60 in. (S-Series); 48, 54 and 60 in. (E-Series) | 48 or 52 in. |
| Deck construction | UltraCut Series 3, 10-gauge top and 7-gauge skirts (S-Series); Series 2+ fabricated welded (E-Series) | 10-gauge fabricated steel |
| Cutting height | — | 1.5 to 4.5 in. |
| Discharge | Side discharge | — |
| Top speed | Up to 8 mph (E-Series); up to 9 mph (S-Series) | 0 to 10 mph forward, 0 to 5 mph reverse |
| Front tires | — | 13x6.5-6 |
| Rear tires | 23-in. drive tires (S-Series) | 22x11-10 Reaper |
| Weight | — | 942 lb (48-in.); 964 lb (52-in.), dry |
| Fuel capacity | 7 US gal | 6 US gal |
| Model numbers | RZS730GKA603A3 (S 60), RZE708GEM48C00 (E 48) | 5901908, 5902110 (48-in.); 5901911, 5902109 (52-in.) |
| Cash prices | E $6,699, S $7,199, X $9,999 | — |
| Blade tip speed | About 18,500 ft/min | — |
| Dimensions (60-in.) | 72.3 in. W x 80.5 in. L x 69.7 in. H | — |
| Suspension | — | Pivoting front axle, front and rear coil-over shocks, 10-year warranty |
| Spindles | — | Cast aluminum, 1-in. shafts, greasable |
| Overall length | — | 80 in. |
| Verdict | The Radius gives you a thick-skirted deck, 8 to 9 mph and a 7-gallon tank for much less than a Lazer Z. Pages disagree on a few details, so check… Read the full review |
The IS 600 gets the Ferris suspension and a 10 mph drive at the lowest price in the line. The 18.5 hp base engine is modest for the money. Read the full review |
