Roborock S91COP – Plus.Parts® Spare Brush Kit

The Roborock S91COP is a high-performance flagship robot from Roborock’s premium S91 line, built for homes where a thorough daily clean across mixed surfaces is the baseline expectation. It pairs strong suction with Roborock’s anti-tangle brush platform, which handles pet hair and carpet fibre without the repeated manual clearing that older brush designs require. The main brush handles the floor coverage, the side brushes handle the edges, and the combination keeps the robot working through a full-floor run without interruption. Over time, both brush types change in ways that are not immediately visible but easy to notice in the clean result: the main brush loses the elasticity that keeps it in ground contact, and the side brushes gradually splay outward until their inward-sweeping angle flattens and debris near walls starts to escape the robot’s path.

This spare brush kit provides six replacement components, two anti-tangle main brushes and four side brushes, each manufactured using Plus.Parts® materials as a direct-fit alternative to the original Roborock S91COP parts. The dimensions match the S91COP’s mounting points without adjustment, so installation is a straightforward swap that takes a few minutes per position. Replacing the main brush restores the ground-contact efficiency that a stiff brush loses; replacing the side brushes gives back the edge reach that a worn-out set no longer achieves.

The brush materials are formulated to hold their geometry and stiffness profile through a complete replacement cycle. Questions about compatibility or your order reach the team directly, real people who respond personally and work to get it sorted.

Quick summary

• Consistent Performance – Fresh brushes restore the floor contact and side-sweep coverage that keep the Roborock S91COP picking up efficiently on every cleaning run.
• Tested and Reviewed – This set was selected based on thorough compatibility review and build-quality assessment for the S91COP platform by the VacuumReviews.eu team.
• Recommended by Our Team – Our review team curated this kit from hands-on maintenance experience with Roborock’s S-series robot lineup.