Great!
"Awesome!"

The SHIMANO RT-EM810 Ice-Tech Centre Lock disc is a model specifically developed for electric bikes with the Shimano Steps motor, featuring its integrated speed sensor system.
It features "Ice-Tech" technology for powerful and consistent braking, and a 3-layer structure consisting of an aluminium layer between two stainless steel layers to dissipate heat. Furthermore, the design is optimised to shed mud and extend pad life.
Overall rating: 5.0 / 5 based on 3 reviews.
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"Awesome!"
"Upgrading from Shimano two-piston brakes to 4-piston XT brakes—the Icetech discs are just as effective"
"Lightweight, effective, with a very discreet, nearly invisible magnet."