Stihl RM 655 YS 21 in Hydrostatic Drive Walk Mower
$991.00
The STIHL RM 655 YS 21-inch Hydrostatic Lawn Mower is a premium walk-behind mower designed for durability, comfort, and precise speed control. Featuring a Kohler 173cc engine, hydrostatic transmission, and Blade Brake Clutch system, it delivers smooth operation and efficient mowing performance on large lawns. Its aluminum deck and 70L grass catcher enhance productivity, making it ideal for homeowners and light commercial users who need reliable, high-performance cutting.
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Description
STIHL RM 655 YS 21 in Hydrostatic Drive Walk Mower
The STIHL RM 655 YS is a heavy-duty 21-inch self-propelled walk-behind mower designed for users who need smooth hydrostatic speed control, high durability, and semi-commercial cutting performance. It sits in STIHL’s upper RM 655 series and is built for large residential lawns and light professional use.
It is powered by a Kohler HD775 173cc OHV engine, delivering strong torque and stable performance for thick grass and extended mowing sessions. The mower uses a hydrostatic drive system, allowing infinitely variable ground speed control, making it easier to adapt to different terrain and mowing conditions without shifting gears.
A key feature is the Blade Brake Clutch (BBC), which allows the blade to stop while the engine keeps running—useful for clearing debris or emptying the grass catcher without restarting the mower.
The 21-inch aluminum cutting deck keeps the mower lightweight while maintaining commercial-grade durability and corrosion resistance.
Key Features
- Kohler HD775 173cc OHV Engine
- Hydrostatic Variable Speed Drive (infinitely adjustable)
- Blade Brake Clutch (BBC) for safe blade disengagement
- 21-Inch Aluminum Cutting Deck (lightweight + corrosion resistant)
- 70L High-Capacity Grass Catcher with fill indicator
- 3-in-1 Cutting System: mulch, collect, rear discharge
- Central height adjustment system (multi-level)
- Ball-bearing wheels for smoother movement
- Ergonomic mono-comfort handlebar design
- Designed for large residential / semi-commercial lawns
| Model | STIHL RM 655 YS |
|---|---|
| Mower Type | Self-Propelled Walk-Behind Mower |
| Engine | Kohler HD775 OHV |
| Displacement | 173cc |
| Power Output | ~2.6 kW (≈3.5 HP class) |
| Fuel Type | Gasoline |
| Cutting Width | 21 in (53 cm) |
| Deck Material | Aluminum |
| Drive System | Hydrostatic (infinitely variable) |
| Speed Range | ~0 – 3.9 mph (approx.) |
| Cutting Height Range | ~25 – 85 mm |
| Height Adjustment | Central, multi-step |
| Grass Catcher | 70 L |
| Blade System | Single multi-blade system |
| Blade Control | Blade Brake Clutch (BBC) |
| Weight | ~54 kg (≈120 lb class) |
| Recommended Use | Large residential / light commercial lawns |
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