NEW 52" EXMARK RADIUS S-SERIES Whether you're a landscape pro or a homeowner looking to upgrade to pro-level tools, the Exmark Radius S-Series offers a compelling combination of performance, value and long-term durability. Equipped with our UltraCut deck technology, the Radius S-Series delivers unmatched cut quality, while our tough, low maintenance Hydro-Gear integrated transmissions offer zero-turn maneuverability and up to 9 mph forward ground speed.