Roborock R100039 – Plus.Parts® Spare Main Brush

The rubber main brush became the standard across Roborock’s Q and S series for a practical reason: it handles the real-world mix of floor surfaces and debris types in most homes without the tangling that made older bristle-roll designs a routine maintenance task. For Roborock devices using the R100039 brush specification, the flex-strip design collects debris through contact and velocity rather than capture-and-hold, which means the brush exits a cleaning session cleaner than its bristle equivalents. In intensive daily-use conditions, though, the rubber compound degrades, not dramatically at first, but enough over time that the brush’s conformance to floor variation reduces and carpet pickup drops.

Staying ahead of that degradation is simple when the right replacement is on hand. This set contains Plus.Parts® rubber main brushes for Roborock devices using the R100039 brush specification: 4 brushes total for two complete replacement cycles. The mounting dimensions match the original specification for a direct-fit swap, and the compound holds its profile and flexibility across the full replacement interval, not just the first few weeks in the robot.

The support team is real and reachable for any question about compatibility or your order. Personal responses, not automated replies.

At a glance

• Backed by Real Testing – Verified against the R100039 brush specification by a team with direct knowledge of Roborock Q and S series maintenance requirements.
• Built to Last – Compound and clip dimensions selected to hold performance across the full recommended service window in daily-run robots.
• Reliable Quality – Consistent compound hardness and clip-fit dimensions across every brush in the pack for predictable, repeatable installation and performance.