The Ryobi RY40HPST02B is the heavier-duty, tool-only version of the 40V HP brushless string trimmer lineup, featuring a 17 in. cut width — one inch wider than the RY40HPST01B — for faster pass coverage on large lawns and overgrown areas. Ryobi positions this model as a battery-powered equivalent to a 32cc gas trimmer, with the 40V HP brushless motor delivering the sustained torque needed for thick, wet, or tall grass. Whisper Series engineering keeps operational noise substantially lower than gas alternatives, making it suitable for early-morning or residential use. The REEL EASY+ 3-in-1 bump feed head and EXPAND-IT attachment capability round out a feature set aimed at users who want maximum trimming performance from the 40V HP platform.
How does the RY40HPST02B compare to the RY40HPST01B?
The RY40HPST02B has a 17 in. cut width versus 16 in. on the RY40HPST01B, allowing wider pass coverage per stroke and faster clearing on larger lawns. The RY40HPST02B also weighs 9.25 lbs (tool only) and is rated as a 32cc gas equivalent — positioning it as the more heavy-duty of the two models. The RY40HPST01B is better suited for average residential lots; the RY40HPST02B is the better choice for larger properties or more demanding vegetation.
What does '32cc gas equivalent' mean for the RY40HPST02B?
Ryobi rates the RY40HPST02B as performance-equivalent to a 32cc gas string trimmer — a mid-to-upper class gas unit capable of handling thick grass, tall weeds, and moderate brush. This means the 40V HP brushless motor provides comparable cutting torque and line speed to gas trimmers in that displacement class, without fuel, emissions, or high noise levels.
Does the RY40HPST02B work with EXPAND-IT attachments?
Yes. The RY40HPST02B is EXPAND-IT attachment capable, accepting the full range of Ryobi EXPAND-IT accessories — including edger, cultivator, pole saw, and blower attachments sold separately. This allows it to function as a multi-tool power head for various landscape maintenance tasks.
What battery should I use with the RY40HPST02B?
The RY40HPST02B requires a Ryobi 40V HP battery (not included in the tool-only model). Given the higher power demands of the 17 in. cut width and 32cc-class motor, a 4.0 Ah or larger 40V HP battery is recommended. Larger packs such as the 6.0 Ah or 8.0 Ah will provide extended runtime on larger properties.
How does the Whisper Series design affect the RY40HPST02B?
Ryobi's Whisper Series designation indicates the RY40HPST02B is engineered to operate at significantly lower noise levels than comparable gas trimmers, which typically produce 95–105 dB. The brushless motor and optimized airflow design reduce operational noise, making the trimmer more suitable for residential neighborhoods and time-sensitive trimming where noise is a concern.
# Ryobi 40V HP Brushless 17 in. String Trimmer (Tool Only) **Model:** `RY40HPST02B` **Brand:** Ryobi **Category:** String Trimmer > The Ryobi RY40HPST02B is the heavier-duty, tool-only version of the 40V HP brushless string trimmer lineup, featuring a 17 in. cut width — one inch wider than the RY40HPST01B — for faster pass coverage on large lawns and overgrown areas. Ryobi positions this model as a battery-powered equivalent to a 32cc gas trimmer, with the 40V HP brushless motor delivering the sustained torque needed for thick, wet, or tall grass. Whisper Series engineering keeps operational noise substantially lower than gas alternatives, making it suitable for early-morning or residential use. The REEL EASY+ 3-in-1 bump feed head and EXPAND-IT attachment capability round out a feature set aimed at users who want maximum trimming performance from the 40V HP platform. ## Specifications | Attribute | Value | |---|---| | Product Type | String Trimmer | | Voltage (V) | 40 | | Platform | 40V HP | | Cordless / Corded | Cordless | | Motor Type | Brushless | | Cut Width In | 17 | | Line Diameter In | 0.095 | | Feed Type | Bump Feed (REEL EASY+ 3-in-1) | | Attachment Capable | Yes | | Tool Only | Yes | | Batteries Included | 0 | | Battery Included | No | | Charger Included | No | | Weight (lbs) | 9.25 | | Warranty | 5-year limited | ## What's Included - (1) RYOBI 40V HP Brushless 17 in. String Trimmer (RY40HPST02B) - (1) REEL EASY+ 3-in-1 Bump Feed Head Source: https://www.jaspecs.com/ryobi/string-trimmer/ry40hpst02b-ryobi-40v-hp-brushless-17-in-string-trimmer-tool-only/