?coomeng Zoom HB876E 2-PIN/3-PIN 4-Pistons E-Bike Electric Power-Off Hydraulic Brake Set with 180mm Rotors, Pre-Bled Hydraulic Disc Brake Caliper Lever for eBike (Included Mounting Adapter) Black & 3-PIN Connector is up for auction in Sports & Outdoors. The current bid is $28.00, 80% below the $138.99 MSRP, in New/Like New condition. This auction has ended — similar items appear in live auctions regularly.